class NodeListRenderer

from yak.tags import NodeListRenderer 
Helper Node to wrap a NodeList with a Node. Its role is to make syntax uniform.

It is used to make a NodeList renderable as a single Node.
It also keeps track of the parent tag uuid if available

Ancestors (MRO)

  1. builtins.object
  2. django.template.base.Node
  3. yak.tags.NodeListRenderer

Fields

AttributeTypeDefined in

Attributes

AttributeValueDefined in

Methods

def __init__(self, nodelist, uuid=None)
yak.tags.NodeListRenderer 
Initialize self.  See help(type(self)) for accurate signature.
    def __init__(self, nodelist, uuid=None):
        self.nodelist = nodelist
        self.parent_uuid = uuid

def get_nodes_by_type(self, nodetype)
django.template.base.Node 
Return a list of all nodes (within this node and its nodelist)
of the given type
    def get_nodes_by_type(self, nodetype):
        """
        Return a list of all nodes (within this node and its nodelist)
        of the given type
        """
        nodes = []
        if isinstance(self, nodetype):
            nodes.append(self)
        for attr in self.child_nodelists:
            nodelist = getattr(self, attr, None)
            if nodelist:
                nodes.extend(nodelist.get_nodes_by_type(nodetype))
        return nodes

def render(self, context)
yak.tags.NodeListRenderer
yak.tags.NodeListRenderer 
Return the node rendered as a string.
    def render(self, context):
        # replace _parent_uuid in context and keep track of the previous one
        if '_parent_uuid' in context:
            prev_uuid = context['_parent_uuid']
        else:
            prev_uuid = None
        context['_parent_uuid'] = self.parent_uuid

        rv = self.nodelist.render(context)

        # reset _parent_uuid to its previous value
        if prev_uuid:
            context['_parent_uuid'] = prev_uuid
        else:
            del context['_parent_uuid']

        return rv
django.template.base.Node 
Return the node rendered as a string.
    def render(self, context):
        """
        Return the node rendered as a string.
        """
        pass

def render_annotated(self, context)
django.template.base.Node 
Render the node. If debug is True and an exception occurs during
rendering, the exception is annotated with contextual line information
where it occurred in the template. For internal usage this method is
preferred over using the render method directly.
    def render_annotated(self, context):
        """
        Render the node. If debug is True and an exception occurs during
        rendering, the exception is annotated with contextual line information
        where it occurred in the template. For internal usage this method is
        preferred over using the render method directly.
        """
        try:
            return self.render(context)
        except Exception as e:
            if context.template.engine.debug:
                # Store the actual node that caused the exception.
                if not hasattr(e, "_culprit_node"):
                    e._culprit_node = self
                if (
                    not hasattr(e, "template_debug")
                    and context.render_context.template.origin == e._culprit_node.origin
                ):
                    e.template_debug = (
                        context.render_context.template.get_exception_info(
                            e,
                            e._culprit_node.token,
                        )
                    )
            raise