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[gen] Added field.persist to avoid storing values for fields that do not require it (like master fields only used to determine selectable values among slave fields).

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This commit is contained in:
Gaetan Delannay 2014-03-04 15:03:37 +01:00
parent b8ceb66a49
commit ea08d7981f
19 changed files with 106 additions and 75 deletions
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33
fields/__init__.py
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@ -61,8 +61,7 @@ class Field:
value=zobj.getFormattedFieldValue(name, rawValue, showChanges);
requestValue=zobj.getRequestFieldValue(name);
inRequest=req.has_key(name);
errors=errors|();
inError=name in errors;
error=req.get('%s_error' % name);
isMultiple=(field.multiplicity[1] == None) or \
(field.multiplicity[1] > 1);
masterCss=field.slaves and ('master_%s' % name) or '';
@ -86,8 +85,8 @@ class Field:
src=":url('help')"/></acronym>''')
# Displays validation-error-related info about a field.
pxValidation = Px('''<x><acronym if="inError" title=":errors[name]"><img
src=":url('warning')"/></acronym><img if="not inError"
pxValidation = Px('''<x><acronym if="error" title=":error"><img
src=":url('warning')"/></acronym><img if="not error"
src=":url('warning_no.gif')"/></x>''')
# Displays the fact that a field is required.
@ -107,7 +106,7 @@ class Field:
layouts, move, indexed, searchable, specificReadPermission,
specificWritePermission, width, height, maxChars, colspan,
master, masterValue, focus, historized, sync, mapping, label,
sdefault, scolspan, swidth, sheight):
sdefault, scolspan, swidth, sheight, persist):
# The validator restricts which values may be defined. It can be an
# interval (1,None), a list of string values ['choice1', 'choice2'],
# a regular expression, a custom function, a Selection instance, etc.
@ -215,6 +214,10 @@ class Field:
# Width and height for the search widget
self.swidth = swidth or width
self.sheight = sheight or height
# "persist" indicates if field content must be stored in the database.
# For some fields it is not wanted (ie, fields used only as masters to
# update slave's selectable values).
self.persist = persist
def init(self, name, klass, appName):
'''When the application server starts, this secondary constructor is
@ -584,26 +587,14 @@ class Field:
res += '+'
return res
def getOnChange(self, name, zobj, layoutType):
def getOnChange(self, zobj, layoutType):
'''When this field is a master, this method computes the call to the
Javascript function that will be called when its value changes (in
order to update slaves).'''
if not self.slaves: return ''
q = zobj.getTool().quote
# Create the dict of request values for slave fields.
rvs = {}
req = zobj.REQUEST
for slave in self.slaves:
name = slave.name
if not req.has_key(name): continue
if not req[name]: continue
rvs[name] = req[name]
if rvs:
rvs = ',%s' % sutils.getStringDict(rvs)
else:
rvs = ''
return 'updateSlaves(this,null,%s,%s%s)' % \
(q(zobj.absolute_url()), q(layoutType), rvs)
return 'updateSlaves(this,null,%s,%s)' % \
(q(zobj.absolute_url()), q(layoutType))
def isEmptyValue(self, value, obj=None):
'''Returns True if the p_value must be considered as an empty value.'''
@ -680,7 +671,7 @@ class Field:
def store(self, obj, value):
'''Stores the p_value (produced by m_getStorableValue) that complies to
p_self type definition on p_obj.'''
setattr(obj, self.name, value)
if self.persist: setattr(obj, self.name, value)
def callMethod(self, obj, method, cache=True):
'''This method is used to call a p_method on p_obj. p_method is part of