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Custom widgets for choice fields in the session @@start view #702

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Feb 9, 2024
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Custom widgets for choice fields in the session @@start view #702

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3 changes: 3 additions & 0 deletions docs/changes.rst
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Expand Up @@ -4,6 +4,9 @@ Changelog
16.0.0 (unreleased)
-------------------

- Custom widgets for choice fields in the session @@start view
[ale-rt, maurits]

- Fix problem with the identification report not being generated for certain survey sessions.
Ref: scrum-1846
Fixes: #688
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33 changes: 33 additions & 0 deletions src/euphorie/client/widgets/choice.py
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@@ -0,0 +1,33 @@
from functools import cached_property
from z3c.form.browser.select import SelectWidget
from z3c.form.interfaces import IFieldWidget
from z3c.form.widget import FieldWidget
from zope.interface import implementer


class EuphorieChoiceWidget(SelectWidget):
"""Select widget for z3c.form in the Euphorie context: better display
mode."""

@cached_property
def title_value(self):
if self.name in self.request.form:
token = self.request.form[self.name]
vocabulary = self.field.source(self.context)
try:
return vocabulary.getTermByToken(token).value
except LookupError:
return

return getattr(self.context.session, self.field.__name__, None)

def isSelected(self, term):
return term.title == self.title_value


@implementer(IFieldWidget)
def EuphorieChoiceFieldWidget(field, request):
"""This is identicall to the equivalent in plone.app.z3cform but needs a
customization to use the EuphorieSelectWidget class."""
widget = FieldWidget(field, EuphorieChoiceWidget(request))
return widget
15 changes: 15 additions & 0 deletions src/euphorie/client/widgets/configure.zcml
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Expand Up @@ -18,6 +18,12 @@
euphorie.client.interfaces.IClientSkinLayer"
/>

<adapter
factory=".choice.EuphorieChoiceFieldWidget"
for="zope.schema.interfaces.IChoice
euphorie.client.interfaces.IClientSkinLayer"
/>

<z3c:widgetTemplate
for="euphorie.client.adapters.session_traversal.ITraversedSurveySession"
view="euphorie.client.browser.session.Start"
Expand All @@ -36,4 +42,13 @@
mode="input"
/>

<z3c:widgetTemplate
for="euphorie.client.adapters.session_traversal.ITraversedSurveySession"
view="euphorie.client.browser.session.Start"
widget="z3c.form.interfaces.ISelectWidget"
template="templates/choice_widget.pt"
layer="euphorie.client.interfaces.IClientSkinLayer"
mode="input"
/>

</configure>
40 changes: 40 additions & 0 deletions src/euphorie/client/widgets/templates/choice_widget.pt
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<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:i18n="http://xml.zope.org/namespaces/i18n"
xmlns:tal="http://xml.zope.org/namespaces/tal"
tal:omit-tag=""
i18n:domain="nuplone"
>
<div class="z3cFieldContainer ${view/@@dependencies}">
<label>
<select class="${view/klass}"
id="${view/id}"
multiple="${view/multiple}"
name="${view/name}"
size="${view/size}"
>
<tal:item repeat="item view/items"><option id="${item/id}"
selected="${python:'selected' if selected else None}"
value="${item/value}"
tal:define="
selected item/selected;
"
>${item/content}</option></tal:item>
</select>
<tal:error condition="view/error"
replace="structure view/error/render|nothing"
/>
</label>
<dfn class="infoPanel"
title="Information"
tal:define="
description view/field/description;
"
tal:condition="description"
i18n:attributes="title"
>${description}</dfn>
<input name="${view/name}-empty-marker"
type="hidden"
value="1"
/>
</div>
</html>
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