annotate MoinMoin/util/forms.py @ 218:fd36d76dd0e3

util.forms: new filter for required attributes added, thanks to Jason Kirtland
author Reimar Bauer <rb.proj AT googlemail DOT com>
date Sat, 07 May 2011 22:10:41 +0200
parents 4cd8edde9e94
children 029cb888d253
rev   line source
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1 # Copyright: 2010 Thomas Waldmann, Jason Kirtland, Scott Wilson
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2 # License: see flatland license
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3
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4 """
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5 MoinMoin - form helpers for flatland / jinja2
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6 """
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8
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9 from jinja2 import Markup
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10
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11 from flatland.out.markup import Generator
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12 from flatland.schema.util import find_i18n_function
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13
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14 from MoinMoin.i18n import _, L_, N_
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16 def label_filter(tagname, attributes, contents, context, bind):
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17 """Provide a translated, generated fallback for field labels."""
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18 if bind is not None and not contents:
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19 contents = _(bind.label)
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20 return contents
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21 label_filter.tags = set(['label'])
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24 def button_filter(tagname, attributes, contents, context, bind):
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25 """Show translated text in clickable buttons and submits."""
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26 if bind is None:
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27 return contents
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28 if tagname == 'input':
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29 if ('value' not in attributes and
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30 attributes.get('type') in ['submit', 'reset', ]):
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31 attributes['value'] = _(bind.default_value)
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32 elif tagname == 'button' and not contents:
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33 contents = _(bind.default_value)
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34 return contents
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35 button_filter.tags = set(['input', 'button'])
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37 def required_filter(tagname, attributes, contents, context, bind):
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38 if (bind is not None and not bind.optional):
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39 attributes[u'class'] = u'required'
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40 attributes[u'required'] = u'required'
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41 return contents
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42 required_filter.tags = set(['input', 'label'])
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43
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44 def error_filter_factory(class_='moin-error'):
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45 """Returns an HTML generation filter annotating field CSS class on error.
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47 :param class: The css class to apply in case of validation error on a
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48 field. Default: 'error'
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49 """
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50 def error_filter(tagname, attributes, contents, context, bind):
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51 if bind is not None and bind.errors:
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52 if 'class' in attributes:
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53 attributes['class'] = ' '.join([attributes['class'], class_])
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54 else:
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55 attributes['class'] = class_
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56 return contents
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57 error_filter.tags = set(['input'])
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58 return error_filter
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59
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60 error_filter = error_filter_factory()
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63 def make_generator():
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64 """make an html generator"""
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65 return Generator(auto_domid=True, auto_for=True, auto_filter=True,
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66 markup_wrapper=Markup,
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67 filters=[label_filter, button_filter,
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68 error_filter, required_filter])
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