author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Wed, 14 Oct 2009 16:30:46 +0200 | |
branch | stable |
changeset 3670 | b7ec030a5e10 |
parent 3512 | 2ceaa4e40348 |
child 3524 | a3431f4e2f40 |
child 3922 | 69020a7c234a |
permissions | -rw-r--r-- |
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"""abstract form classes for CubicWeb web client |
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:organization: Logilab |
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1977
606923dff11b
big bunch of copyright / docstring update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
1962
diff
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|
4 |
:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
1977
606923dff11b
big bunch of copyright / docstring update
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
1962
diff
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|
6 |
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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""" |
8 |
__docformat__ = "restructuredtext en" |
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10 |
from logilab.common.decorators import iclassmethod |
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11 |
|
2656
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R [base classes] only AppObject remaning, no more AppRsetObject
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parents:
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12 |
from cubicweb.appobject import AppObject |
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from cubicweb.view import NOINDEX, NOFOLLOW |
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from cubicweb.common import tags |
2005
e8032965f37a
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parents:
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15 |
from cubicweb.web import stdmsgs, httpcache, formfields |
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|
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|
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class FormViewMixIn(object): |
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"""abstract form view mix-in""" |
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category = 'form' |
21 |
controller = 'edit' |
|
1995
ec95eaa2b711
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
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22 |
http_cache_manager = httpcache.NoHTTPCacheManager |
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add_to_breadcrumbs = False |
1437 | 24 |
|
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def html_headers(self): |
26 |
"""return a list of html headers (eg something to be inserted between |
|
27 |
<head> and </head> of the returned page |
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28 |
||
29 |
by default forms are neither indexed nor followed |
|
30 |
""" |
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31 |
return [NOINDEX, NOFOLLOW] |
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def linkable(self): |
34 |
"""override since forms are usually linked by an action, |
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35 |
so we don't want them to be listed by appli.possible_views |
|
36 |
""" |
|
37 |
return False |
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||
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# XXX should disappear |
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class FormMixIn(object): |
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"""abstract form mix-in |
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XXX: you should inherit from this FIRST (obscure pb with super call) |
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""" |
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def session_key(self): |
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"""return the key that may be used to store / retreive data about a |
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previous post which failed because of a validation error |
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""" |
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return '%s#%s' % (self.req.url(), self.domid) |
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def __init__(self, req, rset, **kwargs): |
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super(FormMixIn, self).__init__(req, rset, **kwargs) |
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self.restore_previous_post(self.session_key()) |
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|
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def restore_previous_post(self, sessionkey): |
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# get validation session data which may have been previously set. |
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# deleting validation errors here breaks form reloading (errors are |
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# no more available), they have to be deleted by application's publish |
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# method on successful commit |
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forminfo = self.req.get_session_data(sessionkey, pop=True) |
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if forminfo: |
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# XXX remove req.data assigment once cw.web.widget is killed |
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self.req.data['formvalues'] = self.form_previous_values = forminfo['values'] |
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self.req.data['formerrors'] = self.form_valerror = forminfo['errors'] |
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self.req.data['displayederrors'] = self.form_displayed_errors = set() |
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# if some validation error occured on entity creation, we have to |
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# get the original variable name from its attributed eid |
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foreid = self.form_valerror.entity |
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for var, eid in forminfo['eidmap'].items(): |
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if foreid == eid: |
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self.form_valerror.eid = var |
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73 |
break |
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else: |
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self.form_valerror.eid = foreid |
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else: |
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self.form_previous_values = {} |
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self.form_valerror = None |
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# XXX deprecated with new form system. Should disappear |
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|
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domid = 'entityForm' |
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category = 'form' |
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controller = 'edit' |
1995
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
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|
85 |
http_cache_manager = httpcache.NoHTTPCacheManager |
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add_to_breadcrumbs = False |
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def html_headers(self): |
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"""return a list of html headers (eg something to be inserted between |
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<head> and </head> of the returned page |
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|
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by default forms are neither indexed nor followed |
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""" |
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return [NOINDEX, NOFOLLOW] |
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def linkable(self): |
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"""override since forms are usually linked by an action, |
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so we don't want them to be listed by appli.possible_views |
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99 |
""" |
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100 |
return False |
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|
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102 |
|
1147 | 103 |
def button(self, label, klass='validateButton', tabindex=None, **kwargs): |
104 |
if tabindex is None: |
|
105 |
tabindex = self.req.next_tabindex() |
|
106 |
return tags.input(value=label, klass=klass, **kwargs) |
|
107 |
||
108 |
def action_button(self, label, onclick=None, __action=None, **kwargs): |
|
109 |
if onclick is None: |
|
110 |
onclick = "postForm('__action_%s', \'%s\', \'%s\')" % ( |
|
111 |
__action, label, self.domid) |
|
112 |
return self.button(label, onclick=onclick, **kwargs) |
|
113 |
||
114 |
def button_ok(self, label=None, type='submit', name='defaultsubmit', |
|
115 |
**kwargs): |
|
116 |
label = self.req._(label or stdmsgs.BUTTON_OK).capitalize() |
|
117 |
return self.button(label, name=name, type=type, **kwargs) |
|
1437 | 118 |
|
1147 | 119 |
def button_apply(self, label=None, type='button', **kwargs): |
120 |
label = self.req._(label or stdmsgs.BUTTON_APPLY).capitalize() |
|
121 |
return self.action_button(label, __action='apply', type=type, **kwargs) |
|
122 |
||
123 |
def button_delete(self, label=None, type='button', **kwargs): |
|
124 |
label = self.req._(label or stdmsgs.BUTTON_DELETE).capitalize() |
|
125 |
return self.action_button(label, __action='delete', type=type, **kwargs) |
|
1437 | 126 |
|
1147 | 127 |
def button_cancel(self, label=None, type='button', **kwargs): |
128 |
label = self.req._(label or stdmsgs.BUTTON_CANCEL).capitalize() |
|
129 |
return self.action_button(label, __action='cancel', type=type, **kwargs) |
|
1437 | 130 |
|
1147 | 131 |
def button_reset(self, label=None, type='reset', name='__action_cancel', |
132 |
**kwargs): |
|
133 |
label = self.req._(label or stdmsgs.BUTTON_CANCEL).capitalize() |
|
134 |
return self.button(label, type=type, **kwargs) |
|
135 |
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def need_multipart(self, entity, categories=('primary', 'secondary')): |
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"""return a boolean indicating if form's enctype should be multipart |
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138 |
""" |
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for rschema, _, x in entity.relations_by_category(categories): |
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if entity.get_widget(rschema, x).need_multipart: |
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141 |
return True |
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142 |
# let's find if any of our inlined entities needs multipart |
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for rschema, targettypes, x in entity.relations_by_category('inlineview'): |
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assert len(targettypes) == 1, \ |
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"I'm not able to deal with several targets and inlineview" |
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ttype = targettypes[0] |
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inlined_entity = self.vreg.etype_class(ttype)(self.req, None, None) |
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for irschema, _, x in inlined_entity.relations_by_category(categories): |
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if inlined_entity.get_widget(irschema, x).need_multipart: |
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150 |
return True |
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151 |
return False |
1437 | 152 |
|
0 | 153 |
def error_message(self): |
154 |
"""return formatted error message |
|
155 |
||
156 |
This method should be called once inlined field errors has been consumed |
|
157 |
""" |
|
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158 |
errex = self.req.data.get('formerrors') or self.form_valerror |
0 | 159 |
# get extra errors |
160 |
if errex is not None: |
|
161 |
errormsg = self.req._('please correct the following errors:') |
|
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162 |
displayed = self.req.data.get('displayederrors') or self.form_displayed_errors |
0 | 163 |
errors = sorted((field, err) for field, err in errex.errors.items() |
164 |
if not field in displayed) |
|
165 |
if errors: |
|
166 |
if len(errors) > 1: |
|
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templstr = '<li>%s</li>\n' |
0 | 168 |
else: |
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templstr = ' %s\n' |
0 | 170 |
for field, err in errors: |
171 |
if field is None: |
|
172 |
errormsg += templstr % err |
|
173 |
else: |
|
174 |
errormsg += templstr % '%s: %s' % (self.req._(field), err) |
|
175 |
if len(errors) > 1: |
|
176 |
errormsg = '<ul>%s</ul>' % errormsg |
|
177 |
return u'<div class="errorMessage">%s</div>' % errormsg |
|
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return u'' |
|
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|
180 |
||
181 |
############################################################################### |
|
182 |
||
183 |
class metafieldsform(type): |
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"""metaclass for FieldsForm to retrieve fields defined as class attributes |
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185 |
and put them into a single ordered list: '_fields_'. |
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""" |
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def __new__(mcs, name, bases, classdict): |
188 |
allfields = [] |
|
189 |
for base in bases: |
|
190 |
if hasattr(base, '_fields_'): |
|
191 |
allfields += base._fields_ |
|
192 |
clsfields = (item for item in classdict.items() |
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if isinstance(item[1], formfields.Field)) |
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for fieldname, field in sorted(clsfields, key=lambda x: x[1].creation_rank): |
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if not field.name: |
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field.set_name(fieldname) |
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allfields.append(field) |
198 |
classdict['_fields_'] = allfields |
|
199 |
return super(metafieldsform, mcs).__new__(mcs, name, bases, classdict) |
|
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|
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|
1270 | 202 |
class FieldNotFound(Exception): |
203 |
"""raised by field_by_name when a field with the given name has not been |
|
204 |
found |
|
205 |
""" |
|
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|
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207 |
class Form(FormMixIn, AppObject): |
844 | 208 |
__metaclass__ = metafieldsform |
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__registry__ = 'forms' |
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210 |
|
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211 |
parent_form = None |
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212 |
|
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213 |
@property |
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214 |
def root_form(self): |
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"""return the root form""" |
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if self.parent_form is None: |
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217 |
return self |
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218 |
return self.parent_form.root_form |
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219 |
|
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220 |
@iclassmethod |
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221 |
def _fieldsattr(cls_or_self): |
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222 |
if isinstance(cls_or_self, type): |
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fields = cls_or_self._fields_ |
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224 |
else: |
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fields = cls_or_self.fields |
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226 |
return fields |
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227 |
|
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228 |
@iclassmethod |
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229 |
def field_by_name(cls_or_self, name, role='subject'): |
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230 |
"""return field with the given name and role. |
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231 |
Raise FieldNotFound if the field can't be found. |
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232 |
""" |
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233 |
for field in cls_or_self._fieldsattr(): |
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234 |
if field.name == name and field.role == role: |
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235 |
return field |
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236 |
raise FieldNotFound(name) |
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|
237 |
|
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238 |
@iclassmethod |
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239 |
def fields_by_name(cls_or_self, name, role='subject'): |
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240 |
"""return a list of fields with the given name and role""" |
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241 |
return [field for field in cls_or_self._fieldsattr() |
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242 |
if field.name == name and field.role == role] |
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|
243 |
|
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244 |
@iclassmethod |
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245 |
def remove_field(cls_or_self, field): |
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246 |
"""remove a field from form class or instance""" |
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247 |
cls_or_self._fieldsattr().remove(field) |
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|
248 |
|
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249 |
@iclassmethod |
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250 |
def append_field(cls_or_self, field): |
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251 |
"""append a field to form class or instance""" |
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252 |
cls_or_self._fieldsattr().append(field) |
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|
253 |
|
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254 |
@iclassmethod |
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255 |
def insert_field_before(cls_or_self, new_field, name, role='subject'): |
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256 |
field = cls_or_self.field_by_name(name, role) |
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257 |
fields = cls_or_self._fieldsattr() |
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258 |
fields.insert(fields.index(field), new_field) |
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259 |
|
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260 |
@iclassmethod |
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261 |
def insert_field_after(cls_or_self, new_field, name, role='subject'): |
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262 |
field = cls_or_self.field_by_name(name, role) |
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263 |
fields = cls_or_self._fieldsattr() |
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264 |
fields.insert(fields.index(field)+1, new_field) |