108 lines
4.9 KiB
Python
108 lines
4.9 KiB
Python
# ------------------------------------------------------------------------------
|
|
# This file is part of Appy, a framework for building applications in the Python
|
|
# language. Copyright (C) 2007 Gaetan Delannay
|
|
|
|
# Appy is free software; you can redistribute it and/or modify it under the
|
|
# terms of the GNU General Public License as published by the Free Software
|
|
# Foundation; either version 3 of the License, or (at your option) any later
|
|
# version.
|
|
|
|
# Appy is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
|
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU General Public License along with
|
|
# Appy. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
# ------------------------------------------------------------------------------
|
|
from appy.fields import Field
|
|
from appy.px import Px
|
|
|
|
# ------------------------------------------------------------------------------
|
|
class Computed(Field):
|
|
|
|
# Ajax-called view content of a non sync Computed field.
|
|
pxViewContent = Px('''
|
|
<x var="value=zobj.getFieldValue(name); sync=True">:field.pxView</x>''')
|
|
|
|
pxView = pxCell = pxEdit = Px('''<x>
|
|
<x if="sync">
|
|
<x if="field.plainText">:value</x><x if="not field.plainText">::value</x>
|
|
</x>
|
|
<div if="not sync" var2="ajaxHookId=zobj.UID() + name" id="ajaxHookId">
|
|
<script type="text/javascript">:'askComputedField(%s, %s, %s)' % \
|
|
(q(ajaxHookId), q(zobj.absolute_url()), q(name))">
|
|
</script>
|
|
</div>
|
|
</x>''')
|
|
|
|
pxSearch = Px('''<x>
|
|
<label lfor=":name">:field.labelId</label><br/>
|
|
<input type="text" name=":'%s*string' % name" maxlength=":field.maxChars"
|
|
size=":field.width" value=":field.sdefault"/>
|
|
</x>''')
|
|
|
|
def __init__(self, validator=None, multiplicity=(0,1), default=None,
|
|
show='view', page='main', group=None, layouts=None, move=0,
|
|
indexed=False, searchable=False, specificReadPermission=False,
|
|
specificWritePermission=False, width=None, height=None,
|
|
maxChars=None, colspan=1, method=None, plainText=True,
|
|
master=None, masterValue=None, focus=False, historized=False,
|
|
sync=True, mapping=None, label=None, sdefault='', scolspan=1,
|
|
swidth=None, sheight=None, context={}):
|
|
# The Python method used for computing the field value
|
|
self.method = method
|
|
# Does field computation produce plain text or XHTML?
|
|
self.plainText = plainText
|
|
if isinstance(method, basestring):
|
|
# When field computation is done with a macro, we know the result
|
|
# will be HTML.
|
|
self.plainText = False
|
|
# The context is a dict (or method returning a dict) that will be given
|
|
# to the macro specified in self.method. If the dict contains key
|
|
# "someKey", it will be available to the macro as "options/someKey".
|
|
self.context = context
|
|
Field.__init__(self, None, multiplicity, default, show, page, group,
|
|
layouts, move, indexed, searchable,
|
|
specificReadPermission, specificWritePermission, width,
|
|
height, None, colspan, master, masterValue, focus,
|
|
historized, sync, mapping, label, sdefault, scolspan,
|
|
swidth, sheight)
|
|
self.validable = False
|
|
|
|
def callMacro(self, obj, macroPath):
|
|
'''Returns the macro corresponding to p_macroPath. The base folder
|
|
where we search is "ui".'''
|
|
# Get the special page in Appy that allows to call a macro
|
|
macroPage = obj.ui.callMacro
|
|
# Get, from p_macroPath, the page where the macro lies, and the macro
|
|
# name.
|
|
names = self.method.split('/')
|
|
# Get the page where the macro lies
|
|
page = obj.ui
|
|
for name in names[:-1]:
|
|
page = getattr(page, name)
|
|
macroName = names[-1]
|
|
# Compute the macro context.
|
|
ctx = {'contextObj':obj, 'page':page, 'macroName':macroName}
|
|
if callable(self.context):
|
|
ctx.update(self.context(obj.appy()))
|
|
else:
|
|
ctx.update(self.context)
|
|
return macroPage(obj, **ctx)
|
|
|
|
def getValue(self, obj):
|
|
'''Computes the value instead of getting it in the database.'''
|
|
if not self.method: return
|
|
if isinstance(self.method, basestring):
|
|
# self.method is a path to a macro that will produce the field value
|
|
return self.callMacro(obj, self.method)
|
|
else:
|
|
# self.method is a method that will return the field value
|
|
return self.callMethod(obj, self.method, cache=False)
|
|
|
|
def getFormattedValue(self, obj, value, showChanges=False):
|
|
if not isinstance(value, basestring): return str(value)
|
|
return value
|
|
# ------------------------------------------------------------------------------
|