106 lines
4.8 KiB
Python
106 lines
4.8 KiB
Python
# ------------------------------------------------------------------------------
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# This file is part of Appy, a framework for building applications in the Python
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# language. Copyright (C) 2007 Gaetan Delannay
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# Appy is free software; you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 3 of the License, or (at your option) any later
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# version.
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# Appy is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License along with
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# Appy. If not, see <http://www.gnu.org/licenses/>.
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# ------------------------------------------------------------------------------
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from appy import Object
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from list import List
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from appy.px import Px
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from appy.gen.layout import Table
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# ------------------------------------------------------------------------------
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class Dict(List):
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'''A Dict is stored as a dict of Object instances [Object]~. Keys are fixed
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and are given by a method specified in parameter "keys". Values are
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Object instances, whose attributes are determined by parameter "fields"
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that, similarly to the List field, determines sub-data for every entry in
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the dict. This field is build on top of the List field.'''
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# PX for rendering a single row
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pxRow = Px('''
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<tr valign="top" class=":loop.row.odd and 'even' or 'odd'">
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<td class="discreet">:row[1]</td>
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<td for="info in subFields" if="info[1]" align="center"
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var2="field=info[1];
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fieldName='%s*%d' % (field.name, rowIndex);
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tagCss='noStyle'">:field.pxRender</td>
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</tr>''')
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# PX for rendering the dict (shared between pxView and pxEdit)
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pxTable = Px('''
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<table var="isEdit=layoutType == 'edit'" if="isEdit or value"
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id=":'list_%s' % name" class=":isEdit and 'grid' or 'list'"
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width=":field.width"
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var2="keys=field.keys(obj);
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subFields=field.getSubFields(zobj, layoutType)">
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<!-- Header -->
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<tr valign="bottom">
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<th width=":field.widths[0]"></th>
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<th for="info in subFields" if="info[1]"
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width=":field.widths[loop.info.nb+1]">::_(info[1].labelId)</th>
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</tr>
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<!-- Rows of data -->
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<x for="row in keys" var2="rowIndex=loop.row.nb">:field.pxRow</x>
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</table>''')
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def __init__(self, keys, fields, validator=None, multiplicity=(0,1),
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default=None, show=True, page='main', group=None, layouts=None,
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move=0, specificReadPermission=False,
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specificWritePermission=False, width='', height=None,
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maxChars=None, colspan=1, master=None, masterValue=None,
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focus=False, historized=False, mapping=None, label=None,
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subLayouts=Table('frv', width=None), widths=None, view=None,
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xml=None):
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List.__init__(self, fields, validator, multiplicity, default, show, page,
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group, layouts, move, specificReadPermission,
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specificWritePermission, width, height, maxChars, colspan,
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master, masterValue, focus, historized, mapping, label,
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subLayouts, widths, view, xml)
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# Method in "keys" must return a list of tuples (key, title): "key"
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# determines the key that will be used to store the entry in the
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# database, while "title" will get the text that will be shown in the ui
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# while encoding/viewing this entry.
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self.keys = keys
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def computeWidths(self, widths):
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'''Set given p_widths or compute default ones if not given.'''
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if not widths:
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self.widths = [''] * (len(self.fields) + 1)
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else:
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self.widths = widths
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def getFormattedValue(self, obj, value, layoutType='view',
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showChanges=False, language=None):
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'''Formats the dict value as a list of values'''
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res = []
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for key, title in self.keys(obj.appy()):
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if value and (key in value):
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res.append(value[key])
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else:
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# There is no value for this key in the database p_value
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res.append(None)
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return res
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def getStorableValue(self, obj, value):
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'''Gets p_value in a form that can be stored in the database'''
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res = {}
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values = List.getStorableValue(self, obj, value)
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i = -1
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for key, title in self.keys(obj.appy()):
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i += 1
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res[key] = values[i]
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return res
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# ------------------------------------------------------------------------------
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