devtools/fill.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Fri, 15 Oct 2010 11:33:06 +0200
changeset 6500 e288df2e2f18
parent 5811 e77cea9721e7
child 6884 6fa712e9dfa5
child 6916 3970185a8f8c
permissions -rw-r--r--
[component] remove row argument which is actually discarded by registry's cache (untill we feel we need a per context cache...)
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# -*- coding: iso-8859-1 -*-
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# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""This modules defines func / methods for creating test repositories"""
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__docformat__ = "restructuredtext en"
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from random import randint, choice
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from copy import deepcopy
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from datetime import datetime, date, time, timedelta
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from decimal import Decimal
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from logilab.common import attrdict
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from yams.constraints import (SizeConstraint, StaticVocabularyConstraint,
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                              IntervalBoundConstraint, BoundConstraint,
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                              Attribute, actual_value)
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from rql.utils import decompose_b26 as base_decompose_b26
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from cubicweb import Binary
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from cubicweb.schema import RQLConstraint
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def custom_range(start, stop, step):
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    while start < stop:
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        yield start
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        start += step
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def decompose_b26(index, ascii=False):
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    """return a letter (base-26) decomposition of index"""
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    if ascii:
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        return base_decompose_b26(index)
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    return base_decompose_b26(index, u'ïż½abcdefghijklmnopqrstuvwxyz')
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def get_max_length(eschema, attrname):
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    """returns the maximum length allowed for 'attrname'"""
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    for cst in eschema.rdef(attrname).constraints:
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        if isinstance(cst, SizeConstraint) and cst.max:
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            return cst.max
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    return 300
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    #raise AttributeError('No Size constraint on attribute "%s"' % attrname)
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_GENERATED_VALUES = {}
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class _ValueGenerator(object):
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    """generates integers / dates / strings / etc. to fill a DB table"""
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    def __init__(self, eschema, choice_func=None):
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        """<choice_func> is a function that returns a list of possible
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        choices for a given entity type and an attribute name. It should
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        looks like :
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            def values_for(etype, attrname):
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                # some stuff ...
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                return alist_of_acceptable_values # or None
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        """
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        self.choice_func = choice_func
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        self.eschema = eschema
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    def generate_attribute_value(self, entity, attrname, index=1, **kwargs):
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        if attrname in entity:
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            return entity[attrname]
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        eschema = self.eschema
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        if not eschema.has_unique_values(attrname):
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            value = self.__generate_value(entity, attrname, index, **kwargs)
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        else:
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            value = self.__generate_value(entity, attrname, index, **kwargs)
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            while value in _GENERATED_VALUES.get((eschema, attrname), ()):
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                index += 1
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                value = self.__generate_value(entity, attrname, index, **kwargs)
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            _GENERATED_VALUES.setdefault((eschema, attrname), set()).add(value)
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        entity[attrname] = value
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        return value
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    def __generate_value(self, entity, attrname, index, **kwargs):
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        """generates a consistent value for 'attrname'"""
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        eschema = self.eschema
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        attrtype = str(eschema.destination(attrname)).lower()
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        # Before calling generate_%s functions, try to find values domain
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        if self.choice_func is not None:
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            values_domain = self.choice_func(eschema, attrname)
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            if values_domain is not None:
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                return choice(values_domain)
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        gen_func = getattr(self, 'generate_%s_%s' % (eschema, attrname),
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                           getattr(self, 'generate_Any_%s' % attrname, None))
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        if gen_func is not None:
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            return gen_func(entity, index, **kwargs)
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        # If no specific values domain, then generate a dummy value
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        gen_func = getattr(self, 'generate_%s' % (attrtype))
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        return gen_func(entity, attrname, index, **kwargs)
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    def generate_string(self, entity, attrname, index, format=None):
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        """generates a consistent value for 'attrname' if it's a string"""
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        # First try to get choices
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        choosed = self.get_choice(entity, attrname)
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        if choosed is not None:
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            return choosed
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        # All other case, generate a default string
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        attrlength = get_max_length(self.eschema, attrname)
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        num_len = numlen(index)
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        if num_len >= attrlength:
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            ascii = self.eschema.rdef(attrname).internationalizable
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            return ('&'+decompose_b26(index, ascii))[:attrlength]
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        # always use plain text when no format is specified
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        attrprefix = attrname[:max(attrlength-num_len-1, 0)]
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        if format == 'text/html':
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            value = u'<span>ïż½%s<b>%d</b></span>' % (attrprefix, index)
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        elif format == 'text/rest':
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            value = u"""
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title
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-----
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* %s
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* %d
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* ïż½&
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""" % (attrprefix, index)
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        else:
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            value = u'ïż½&%s%d' % (attrprefix, index)
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        return value[:attrlength]
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    def generate_password(self, entity, attrname, index):
0
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        """generates a consistent value for 'attrname' if it's a password"""
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        return u'toto'
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    def generate_integer(self, entity, attrname, index):
0
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        """generates a consistent value for 'attrname' if it's an integer"""
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        return self._constrained_generate(entity, attrname, 0, 1, index)
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    generate_int = generate_integer
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    def generate_float(self, entity, attrname, index):
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        """generates a consistent value for 'attrname' if it's a float"""
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        return self._constrained_generate(entity, attrname, 0.0, 1.0, index)
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    def generate_decimal(self, entity, attrname, index):
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        """generates a consistent value for 'attrname' if it's a float"""
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        return Decimal(str(self.generate_float(entity, attrname, index)))
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    def generate_datetime(self, entity, attrname, index):
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        """generates a random date (format is 'yyyy-mm-dd HH:MM')"""
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        base = datetime(randint(2000, 2004), randint(1, 12), randint(1, 28), 11, index%60)
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        return self._constrained_generate(entity, attrname, base, timedelta(hours=1), index)
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    def generate_date(self, entity, attrname, index):
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        """generates a random date (format is 'yyyy-mm-dd')"""
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        base = date(randint(2000, 2010), 1, 1) + timedelta(randint(1, 365))
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        return self._constrained_generate(entity, attrname, base, timedelta(days=1), index)
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    def generate_time(self, entity, attrname, index):
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        """generates a random time (format is ' HH:MM')"""
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        return time(11, index%60) #'11:%02d' % (index % 60)
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    def generate_bytes(self, entity, attrname, index, format=None):
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        fakefile = Binary("%s%s" % (attrname, index))
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        fakefile.filename = u"file_%s" % attrname
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        return fakefile
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    def generate_boolean(self, entity, attrname, index):
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        """generates a consistent value for 'attrname' if it's a boolean"""
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        return index % 2 == 0
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    def _constrained_generate(self, entity, attrname, base, step, index):
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        choosed = self.get_choice(entity, attrname)
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        if choosed is not None:
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            return choosed
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        # ensure index > 0
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        index += 1
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        minvalue, maxvalue = self.get_bounds(entity, attrname)
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        if maxvalue is None:
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            if minvalue is not None:
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                base = max(minvalue, base)
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            maxvalue = base + index * step
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        if minvalue is None:
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            minvalue = maxvalue - (index * step) # i.e. randint(-index, 0)
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        return choice(list(custom_range(minvalue, maxvalue, step)))
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    def _actual_boundary(self, entity, boundary):
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        if isinstance(boundary, Attribute):
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            # ensure we've a value for this attribute
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            self.generate_attribute_value(entity, boundary.attr)
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            boundary = actual_value(boundary, entity)
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        return boundary
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    def get_bounds(self, entity, attrname):
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        minvalue = maxvalue = None
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        for cst in self.eschema.rdef(attrname).constraints:
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            if isinstance(cst, IntervalBoundConstraint):
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                minvalue = self._actual_boundary(entity, cst.minvalue)
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                maxvalue = self._actual_boundary(entity, cst.maxvalue)
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            elif isinstance(cst, BoundConstraint):
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                if cst.operator[0] == '<':
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                    maxvalue = self._actual_boundary(entity, cst.boundary)
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                else:
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                    minvalue = self._actual_boundary(entity, cst.boundary)
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        return minvalue, maxvalue
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    def get_choice(self, entity, attrname):
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        """generates a consistent value for 'attrname' if it has some static
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        vocabulary set, else return None.
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        """
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        for cst in self.eschema.rdef(attrname).constraints:
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            if isinstance(cst, StaticVocabularyConstraint):
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                return unicode(choice(cst.vocabulary()))
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        return None
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    # XXX nothing to do here
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    def generate_Any_data_format(self, entity, index, **kwargs):
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        # data_format attribute of File has no vocabulary constraint, we
0
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        # need this method else stupid values will be set which make mtconverter
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        # raise exception
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        return u'application/octet-stream'
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    def generate_Any_content_format(self, entity, index, **kwargs):
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        # content_format attribute of EmailPart has no vocabulary constraint, we
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        # need this method else stupid values will be set which make mtconverter
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        # raise exception
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        return u'text/plain'
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class autoextend(type):
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    def __new__(mcs, name, bases, classdict):
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        for attrname, attrvalue in classdict.items():
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            if callable(attrvalue):
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                if attrname.startswith('generate_') and \
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                       attrvalue.func_code.co_argcount < 2:
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                    raise TypeError('generate_xxx must accept at least 1 argument')
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                setattr(_ValueGenerator, attrname, attrvalue)
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        return type.__new__(mcs, name, bases, classdict)
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class ValueGenerator(_ValueGenerator):
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    __metaclass__ = autoextend
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def _default_choice_func(etype, attrname):
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    """default choice_func for insert_entity_queries"""
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    return None
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def insert_entity_queries(etype, schema, vreg, entity_num,
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                          choice_func=_default_choice_func):
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    """returns a list of 'add entity' queries (couples query, args)
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    :type etype: str
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    :param etype: the entity's type
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    :type schema: cubicweb.schema.Schema
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    :param schema: the instance schema
0
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    :type entity_num: int
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    :param entity_num: the number of entities to insert
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    XXX FIXME: choice_func is here for *historical* reasons, it should
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               probably replaced by a nicer way to specify choices
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    :type choice_func: function
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    :param choice_func: a function that takes an entity type, an attrname and
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                        returns acceptable values for this attribute
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    """
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    # XXX HACK, remove or fix asap
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    if etype in set(('String', 'Int', 'Float', 'Boolean', 'Date', 'CWGroup', 'CWUser')):
0
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        return []
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    queries = []
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    for index in xrange(entity_num):
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        restrictions = []
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        args = {}
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        for attrname, value in make_entity(etype, schema, vreg, index, choice_func).items():
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            restrictions.append('X %s %%(%s)s' % (attrname, attrname))
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            args[attrname] = value
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        if restrictions:
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            queries.append(('INSERT %s X: %s' % (etype, ', '.join(restrictions)),
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                            args))
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            assert not 'eid' in args, args
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   281
        else:
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   282
            queries.append(('INSERT %s X' % etype, {}))
0
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   283
    return queries
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   284
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def make_entity(etype, schema, vreg, index=0, choice_func=_default_choice_func,
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   287
                form=False):
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    """generates a random entity and returns it as a dict
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   289
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    by default, generate an entity to be inserted in the repository
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   291
    elif form, generate an form dictionnary to be given to a web controller
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   292
    """
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   293
    eschema = schema.eschema(etype)
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   294
    valgen = ValueGenerator(eschema, choice_func)
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   295
    entity = attrdict()
0
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   296
    # preprocessing to deal with _format fields
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   297
    attributes = []
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   298
    relatedfields = {}
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   299
    for rschema, attrschema in eschema.attribute_definitions():
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        attrname = rschema.type
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   301
        if attrname == 'eid':
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   302
            # don't specify eids !
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   303
            continue
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   304
        if attrname.endswith('_format') and attrname[:-7] in eschema.subject_relations():
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   305
            relatedfields[attrname[:-7]] = attrschema
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   306
        else:
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   307
            attributes.append((attrname, attrschema))
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   308
    for attrname, attrschema in attributes:
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   309
        if attrname in relatedfields:
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   310
            # first generate a format and record it
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diff changeset
   311
            format = valgen.generate_attribute_value(entity, attrname + '_format', index)
0
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            # then a value coherent with this format
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   313
            value = valgen.generate_attribute_value(entity, attrname, index, format=format)
0
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   314
        else:
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   315
            value = valgen.generate_attribute_value(entity, attrname, index)
0
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   316
        if form: # need to encode values
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   317
            if attrschema.type == 'Bytes':
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   318
                # twisted way
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   319
                fakefile = value
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   320
                filename = value.filename
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   321
                value = (filename, u"text/plain", fakefile)
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diff changeset
   322
            elif attrschema.type == 'Date':
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diff changeset
   323
                value = value.strftime(vreg.property_value('ui.date-format'))
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   324
            elif attrschema.type == 'Datetime':
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diff changeset
   325
                value = value.strftime(vreg.property_value('ui.datetime-format'))
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diff changeset
   326
            elif attrschema.type == 'Time':
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diff changeset
   327
                value = value.strftime(vreg.property_value('ui.time-format'))
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diff changeset
   328
            elif attrschema.type == 'Float':
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diff changeset
   329
                fmt = vreg.property_value('ui.float-format')
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   330
                value = fmt % value
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diff changeset
   331
            else:
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   332
                value = unicode(value)
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diff changeset
   333
    return entity
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diff changeset
   334
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diff changeset
   335
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diff changeset
   336
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20f429eb5f46 kill separate attribute client-side handling #473636
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diff changeset
   337
def select(constraints, cursor, selectvar='O', objtype=None):
0
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   338
    """returns list of eids matching <constraints>
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diff changeset
   339
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   340
    <selectvar> should be either 'O' or 'S' to match schema definitions
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diff changeset
   341
    """
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diff changeset
   342
    try:
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20f429eb5f46 kill separate attribute client-side handling #473636
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diff changeset
   343
        rql = 'Any %s WHERE %s' % (selectvar, constraints)
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diff changeset
   344
        if objtype:
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diff changeset
   345
            rql += ', %s is %s' % (selectvar, objtype)
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diff changeset
   346
        rset = cursor.execute(rql)
0
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diff changeset
   347
    except:
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diff changeset
   348
        print "could restrict eid_list with given constraints (%r)" % constraints
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diff changeset
   349
        return []
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diff changeset
   350
    return set(eid for eid, in rset.rows)
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diff changeset
   351
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diff changeset
   352
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diff changeset
   353
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diff changeset
   354
def make_relations_queries(schema, edict, cursor, ignored_relations=(),
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parents:
diff changeset
   355
                           existingrels=None):
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diff changeset
   356
    """returns a list of generated RQL queries for relations
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1294a6bdf3bf application -> instance where it makes sense
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diff changeset
   357
    :param schema: The instance schema
0
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parents:
diff changeset
   358
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diff changeset
   359
    :param e_dict: mapping between etypes and eids
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parents:
diff changeset
   360
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   361
    :param ignored_relations: list of relations to ignore (i.e. don't try
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   362
                              to generate insert queries for these relations)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   363
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   364
    gen = RelationsQueriesGenerator(schema, cursor, existingrels)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   365
    return gen.compute_queries(edict, ignored_relations)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   366
3742
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   367
def composite_relation(rschema):
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   368
    for obj in rschema.objects():
4053
7cc66b1d9183 more api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3749
diff changeset
   369
        if obj.rdef(rschema, 'object').composite == 'subject':
3742
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   370
            return True
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   371
    for obj in rschema.subjects():
4053
7cc66b1d9183 more api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3749
diff changeset
   372
        if obj.rdef(rschema, 'subject').composite == 'object':
3742
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   373
            return True
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   374
    return False
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   375
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   376
class RelationsQueriesGenerator(object):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   377
    rql_tmpl = 'SET S %s O WHERE S eid %%(subjeid)s, O eid %%(objeid)s'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   378
    def __init__(self, schema, cursor, existing=None):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   379
        self.schema = schema
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   380
        self.cursor = cursor
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
        self.existingrels = existing or {}
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   382
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   383
    def compute_queries(self, edict, ignored_relations):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   384
        queries = []
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
        #   1/ skip final relations and explictly ignored relations
3742
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   386
        rels = sorted([rschema for rschema in self.schema.relations()
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   387
                       if not (rschema.final or rschema in ignored_relations)],
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   388
                      key=lambda x:not composite_relation(x))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
        # for each relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   390
        #   2/ take each possible couple (subj, obj)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   391
        #   3/ analyze cardinality of relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   392
        #      a/ if relation is mandatory, insert one relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   393
        #      b/ else insert N relations where N is the mininum
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   394
        #         of 20 and the number of existing targetable entities
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   395
        for rschema in rels:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   396
            sym = set()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   397
            sedict = deepcopy(edict)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   398
            oedict = deepcopy(edict)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   399
            delayed = []
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   400
            # for each couple (subjschema, objschema), insert relations
4053
7cc66b1d9183 more api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3749
diff changeset
   401
            for subj, obj in rschema.rdefs:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   402
                sym.add( (subj, obj) )
4467
0e73d299730a fix long-waiting symetric typo: should be spelled symmetric. Add auto database migration on schema deserialization
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4337
diff changeset
   403
                if rschema.symmetric and (obj, subj) in sym:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   404
                    continue
4053
7cc66b1d9183 more api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3749
diff changeset
   405
                subjcard, objcard = rschema.rdef(subj, obj).cardinality
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   406
                # process mandatory relations first
3742
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   407
                if subjcard in '1+' or objcard in '1+' or composite_relation(rschema):
3749
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   408
                    for query, args in self.make_relation_queries(sedict, oedict,
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   409
                                                          rschema, subj, obj):
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   410
                        yield query, args
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   411
                else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   412
                    delayed.append( (subj, obj) )
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   413
            for subj, obj in delayed:
3749
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   414
                for query, args in self.make_relation_queries(sedict, oedict, rschema,
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   415
                                                              subj, obj):
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   416
                    yield query, args
1802
d628defebc17 delete-trailing-whitespace + some copyright update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 1398
diff changeset
   417
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   418
    def qargs(self, subjeids, objeids, subjcard, objcard, subjeid, objeid):
4513
8abf464d2ffe fix and begin to document autofill algorithm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4467
diff changeset
   419
        if subjcard in '?1+':
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
            subjeids.remove(subjeid)
4513
8abf464d2ffe fix and begin to document autofill algorithm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4467
diff changeset
   421
        if objcard in '?1+':
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   422
            objeids.remove(objeid)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   423
        return {'subjeid' : subjeid, 'objeid' : objeid}
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   424
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   425
    def make_relation_queries(self, sedict, oedict, rschema, subj, obj):
4053
7cc66b1d9183 more api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3749
diff changeset
   426
        rdef = rschema.rdef(subj, obj)
7cc66b1d9183 more api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3749
diff changeset
   427
        subjcard, objcard = rdef.cardinality
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   428
        subjeids = sedict.get(subj, frozenset())
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   429
        used = self.existingrels[rschema.type]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   430
        preexisting_subjrels = set(subj for subj, obj in used)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   431
        preexisting_objrels = set(obj for subj, obj in used)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   432
        # if there are constraints, only select appropriate objeids
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   433
        q = self.rql_tmpl % rschema.type
4053
7cc66b1d9183 more api update
Sandrine Ribeau <sandrine.ribeau@logilab.fr>
parents: 3749
diff changeset
   434
        constraints = [c for c in rdef.constraints
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   435
                       if isinstance(c, RQLConstraint)]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   436
        if constraints:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   437
            restrictions = ', '.join(c.restriction for c in constraints)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   438
            q += ', %s' % restrictions
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   439
            # restrict object eids if possible
3711
486a29d66f2a work around a problem in constraint application
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3689
diff changeset
   440
            # XXX the attempt to restrict below in completely wrong
486a29d66f2a work around a problem in constraint application
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3689
diff changeset
   441
            # disabling it for now
3742
20f429eb5f46 kill separate attribute client-side handling #473636
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3712
diff changeset
   442
            objeids = select(restrictions, self.cursor, objtype=obj)
3712
4b8d7838d74d revert change, but there's something fishy here
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3711
diff changeset
   443
        else:
4b8d7838d74d revert change, but there's something fishy here
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 3711
diff changeset
   444
            objeids = oedict.get(obj, frozenset())
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   445
        if subjcard in '?1' or objcard in '?1':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   446
            for subjeid, objeid in used:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   447
                if subjcard in '?1' and subjeid in subjeids:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   448
                    subjeids.remove(subjeid)
3673
9342e6783bd2 [testlib] hummm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3541
diff changeset
   449
                    # XXX why?
9342e6783bd2 [testlib] hummm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3541
diff changeset
   450
                    #if objeid in objeids:
9342e6783bd2 [testlib] hummm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3541
diff changeset
   451
                    #    objeids.remove(objeid)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   452
                if objcard in '?1' and objeid in objeids:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   453
                    objeids.remove(objeid)
3673
9342e6783bd2 [testlib] hummm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3541
diff changeset
   454
                    # XXX why?
9342e6783bd2 [testlib] hummm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3541
diff changeset
   455
                    #if subjeid in subjeids:
9342e6783bd2 [testlib] hummm
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3541
diff changeset
   456
                    #    subjeids.remove(subjeid)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   457
        if not subjeids:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   458
            check_card_satisfied(objcard, objeids, subj, rschema, obj)
1802
d628defebc17 delete-trailing-whitespace + some copyright update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 1398
diff changeset
   459
            return
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   460
        if not objeids:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   461
            check_card_satisfied(subjcard, subjeids, subj, rschema, obj)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   462
            return
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   463
        if subjcard in '?1+':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   464
            for subjeid in tuple(subjeids):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   465
                # do not insert relation if this entity already has a relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   466
                if subjeid in preexisting_subjrels:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   467
                    continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   468
                objeid = choose_eid(objeids, subjeid)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   469
                if objeid is None or (subjeid, objeid) in used:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   470
                    continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   471
                yield q, self.qargs(subjeids, objeids, subjcard, objcard,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   472
                                    subjeid, objeid)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   473
                used.add( (subjeid, objeid) )
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   474
                if not objeids:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   475
                    check_card_satisfied(subjcard, subjeids, subj, rschema, obj)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   476
                    break
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   477
        elif objcard in '?1+':
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   478
            for objeid in tuple(objeids):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   479
                # do not insert relation if this entity already has a relation
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   480
                if objeid in preexisting_objrels:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   481
                    continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   482
                subjeid = choose_eid(subjeids, objeid)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   483
                if subjeid is None or (subjeid, objeid) in used:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   484
                    continue
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   485
                yield q, self.qargs(subjeids, objeids, subjcard, objcard,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   486
                                    subjeid, objeid)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   487
                used.add( (subjeid, objeid) )
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   488
                if not subjeids:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   489
                    check_card_satisfied(objcard, objeids, subj, rschema, obj)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   490
                    break
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   491
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   492
            # FIXME: 20 should be read from config
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   493
            subjeidsiter = [choice(tuple(subjeids)) for i in xrange(min(len(subjeids), 20))]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   494
            objeidsiter = [choice(tuple(objeids)) for i in xrange(min(len(objeids), 20))]
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   495
            for subjeid, objeid in zip(subjeidsiter, objeidsiter):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   496
                if subjeid != objeid and not (subjeid, objeid) in used:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   497
                    used.add( (subjeid, objeid) )
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   498
                    yield q, self.qargs(subjeids, objeids, subjcard, objcard,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   499
                                        subjeid, objeid)
1802
d628defebc17 delete-trailing-whitespace + some copyright update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 1398
diff changeset
   500
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   501
def check_card_satisfied(card, remaining, subj, rschema, obj):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   502
    if card in '1+' and remaining:
3749
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   503
        raise Exception("can't satisfy cardinality %s for relation %s %s %s" %
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   504
                        (card, subj, rschema, obj))
a84e798b99f6 turn make_relations_query into a true generator (this allows interleaving of actual entities linking and query generation)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 3747
diff changeset
   505
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   506
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   507
def choose_eid(values, avoid):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   508
    values = tuple(values)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   509
    if len(values) == 1 and values[0] == avoid:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   510
        return None
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   511
    objeid = choice(values)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   512
    while objeid == avoid: # avoid infinite recursion like in X comment X
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   513
        objeid = choice(values)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   514
    return objeid
1802
d628defebc17 delete-trailing-whitespace + some copyright update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 1398
diff changeset
   515
d628defebc17 delete-trailing-whitespace + some copyright update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 1398
diff changeset
   516
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   517
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   518
# UTILITIES FUNCS ##############################################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   519
def make_tel(num_tel):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   520
    """takes an integer, converts is as a string and inserts
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   521
    white spaces each 2 chars (french notation)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   522
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   523
    num_list = list(str(num_tel))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   524
    for index in (6, 4, 2):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   525
        num_list.insert(index, ' ')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   526
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   527
    return ''.join(num_list)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   528
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   529
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   530
def numlen(number):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   531
    """returns the number's length"""
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   532
    return len(str(number))