space-accessstablestagetest-hooks
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Last change
on this file since 7f16c8e was
7f16c8e,
checked in by Alex Dehnert <adehnert@…>, 14 years ago
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Agghhh file naming.
So, it turns out if your file name overlaps with a file name in use by Django,
things break horribly, in ways that are confusing and result in mysterious
errors deep in Django's stack.
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-
Property mode set to
100644
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File size:
1.1 KB
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| Rev | Line | |
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| [a484cbf] | 1 | from django.forms.widgets import Widget, HiddenInput |
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| 2 | from django.utils.safestring import mark_safe |
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| 3 | from django.utils.html import conditional_escape |
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| 4 | |
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| 5 | class StaticWidget(Widget): |
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| 6 | """Widget that just displays and supplies a specific value. |
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| 7 | |
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| 8 | Useful for "freezing" form fields --- displaying them, but not |
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| 9 | allowing editing. |
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| 10 | """ |
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| 11 | |
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| 12 | def __init__(self, *args, **kwargs): |
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| 13 | self.value = kwargs['value'] |
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| 14 | del kwargs['value'] |
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| 15 | super(StaticWidget, self).__init__(*args, **kwargs) |
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| 16 | self.inner = HiddenInput() |
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| 17 | |
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| 18 | def value_from_datadict(self, data, files, name, ): |
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| 19 | return self.value |
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| 20 | |
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| 21 | def render(self, name, value, attrs=None, ): |
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| 22 | if value is None: |
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| 23 | value = '' |
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| 24 | # We have this inner hidden widget because that allows us to nicely |
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| 25 | # handle a transition from StaticWidget to another widget type |
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| 26 | # (e.g., the user loads a form while unauthenticated and submits while |
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| 27 | # authenticated) |
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| 28 | hidden_render = self.inner.render(name, value, attrs=attrs) |
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| 29 | return mark_safe(conditional_escape(value) + hidden_render) |
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