class iffchangedNode(template.Node):
def __init__(self, parser, condition, true_value, false_value, asvar=None):
self.condition = FilterExpression(condition, parser)
self.true_value = FilterExpression(true_value, parser)
self.false_value = FilterExpression(false_value, parser)
self.asvar = asvar
def render(self, context):
if self not in context.render_context:
context.render_context[self] = {'condition': self.condition.resolve(context)}
if self.asvar:
context[self.asvar] = self.true_value.resolve(context)
return self.true_value.resolve(context)
else:
if context.render_context[self]['condition'] == self.condition.resolve(context):
if self.asvar:
context[self.asvar] = self.false_value.resolve(context)
else:
return self.false_value.resolve(context)
else:
context.render_context[self]['condition'] = self.condition.resolve(context)
if self.asvar:
context[self.asvar] = self.true_value.resolve(context)
else:
return self.true_value.resolve(context)
return ''
class varNode(template.Node):
def __init__(self, parser, value, asvar):
self.value = FilterExpression(value, parser)
self.asvar = asvar
def render(self, context):
context[self.asvar] = self.value.resolve(context)
return ''
