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1 """Set of views allowing edition of entities/relations using ajax |
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2 |
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3 :organization: Logilab |
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4 :copyright: 2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved. |
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5 :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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6 """ |
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7 __docformat__ = "restructuredtext en" |
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8 |
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9 from cubicweb.common.selectors import (chainfirst, req_form_params_selector, |
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10 kwargs_selector) |
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11 from cubicweb.web.box import EditRelationBoxTemplate |
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12 |
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13 class AddRelationView(EditRelationBoxTemplate): |
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14 """base class for view which let add entities linked |
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15 by a given relation |
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16 |
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17 subclasses should define at least id, rtype and target |
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18 class attributes. |
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19 """ |
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20 __registry__ = 'views' |
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21 __selectors__ = (chainfirst(req_form_params_selector, kwargs_selector),) |
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22 property_defs = {} # don't want to inherit this from Box |
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23 id = 'xaddrelation' |
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24 expected_kwargs = form_params = ('rtype', 'target') |
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25 |
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26 build_js = EditRelationBoxTemplate.build_reload_js_call |
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27 |
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28 def cell_call(self, row, col, rtype=None, target=None, etype=None): |
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29 self.rtype = rtype or self.req.form['rtype'] |
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30 self.target = target or self.req.form['target'] |
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31 self.etype = etype or self.req.form.get('etype') |
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32 entity = self.entity(row, col) |
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33 rschema = self.schema.rschema(self.rtype) |
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34 if not self.etype: |
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35 if self.target == 'object': |
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36 etypes = rschema.objects(entity.e_schema) |
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37 else: |
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38 etypes = rschema.subjects(entity.e_schema) |
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39 if len(etypes) == 1: |
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40 self.etype = etypes[0] |
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41 fakebox = [] |
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42 self.w(u'<div id="%s">' % self.id) |
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43 self.w(u'<h1>%s</h1>' % self.req._('relation %(relname)s of %(ent)s') |
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44 % {'relname': rschema.display_name(self.req, self.xtarget()[0]), |
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45 'ent': entity.view('incontext')}) |
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46 self.w(u'<ul>') |
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47 self.w_unrelated(fakebox, entity) |
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48 for boxitem in fakebox: |
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49 boxitem.render(self.w) |
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50 self.w(u'</ul></div>') |
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51 |
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52 def unrelated_entities(self, entity): |
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53 """returns the list of unrelated entities |
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54 |
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55 if etype is not defined on the Box's class, the default |
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56 behaviour is to use the entity's appropraite vocabulary function |
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57 """ |
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58 x, target = self.xtarget() |
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59 # use entity.unrelated if we've been asked for a particular etype |
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60 if getattr(self, 'etype', None): |
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61 rset = entity.unrelated(self.rtype, self.etype, x, ordermethod='fetch_order') |
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62 self.pagination(self.req, rset, w=self.w) |
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63 return rset.entities() |
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64 # in other cases, use vocabulary functions |
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65 entities = [] |
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66 for _, eid in entity.vocabulary(self.rtype, x): |
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67 if eid is not None: |
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68 rset = self.req.eid_rset(eid) |
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69 entities.append(rset.get_entity(0, 0)) |
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70 return entities |