from plone.memoize.view import memoize
from AccessControl import ClassSecurityInfo
from Globals import InitializeClass
from Products.DataGridField.Column import Column
class HiddenColumn(Column):
""" Column with non-changeable text
Useful with DataGridField.fixed_row property in some use cases.
"""
security = ClassSecurityInfo()
def __init__(self, label, default=None, label_msgid=None, visible=True):
""" Create a column
@param hide Hide column from displaying
"""
Column.__init__(self, label, default, label_msgid)
self.visible = visible
security.declarePublic('getMacro')
def getMacro(self):
""" Return macro used to render this column in view/edit """
return "datagrid_hidden_cell"
# Initializes class security
InitializeClass(HiddenColumn)
class BlockColumn(Column):
""" Column with possibility to block the cell data from changing,
based on the value of the row data.
"""
security = ClassSecurityInfo()
def __init__(self, label, default=None, label_msgid=None,
column_on_class=None, column_off_class=None,
columns=[], invert=False, read_only=None):
""" Create a column, with adding class attribute depend on value presence for the cell.
@param column_on_class set class, which will be added to the tag if columns has value
@param column_off_class set class, which will be added to the tag if columns not has value
@param columns list of columns names, which values will be checked for set class attribute
@param invert - invert the adding class logic
@param read_only - check-on/off readOnly attribute for the tag
"""
Column.__init__(self, label, default, label_msgid)
self.column_on_class = column_on_class
self.column_off_class = column_off_class
self.columns = columns
self.invert = invert
self.read_only = read_only
def passCondition(self, row_data):
""" Return calculated class attribute."""
res = sum([1 for c in self.columns if row_data.get(c,0)])
return res == len(self.columns) and not self.invert
security.declarePublic('getAttributesData')
def getAttributesData(self, row_data):
""" Return calculated class attribute."""
res = {'style_class': None, 'read_only': None}
isPassCondition = self.passCondition(row_data)
if self.column_on_class or self.column_off_class:
res['style_class'] = isPassCondition and self.column_on_class or self.column_off_class
if self.read_only:
res['read_only'] = isPassCondition and True or False
return res
security.declarePublic('getMacro')
def getMacro(self):
""" Return macro used to render this column in view/edit """
return "datagrid_block_cell"
# Initializes class security
InitializeClass(BlockColumn)