def do_random(parser, token):
"""
Output the contents of a random block.
The `random` block tag must contain one or more `or` tags, which separate
possible choices; a choice in this context is everything between a
`random` and `or` tag, between two `or` tags, or between an `or` and an
`endrandom` tag.
Sample usage::
{% random %}
You will see me half the time.
{% or %}
You will see <em>me</em> the other half.
{% endrandom %}
"""
options = NodeList()
while True:
option = parser.parse(('or', 'endrandom'))
token = parser.next_token()
options.append(option)
if token.contents == 'or':
continue
parser.delete_first_token()
break
if len(options) < 2:
raise TemplateSyntaxError
return RandomNode(options)
def do_random(parser, token):
"""
Output the contents of a random block.
The `random` block tag must contain one or more `or` tags, which separate
possible choices; a choice in this context is everything between a
`random` and `or` tag, between two `or` tags, or between an `or` and an
`endrandom` tag.
Sample usage::
{% random %}
You will see me half the time.
{% or %}
You will see <em>me</em> the other half.
{% endrandom %}
"""
options = NodeList()
while True:
option = parser.parse(('or', 'endrandom'))
token = parser.next_token()
options.append(option)
if token.contents == 'or':
continue
parser.delete_first_token()
break
if len(options) < 2:
raise TemplateSyntaxError
return RandomNode(options)
def angularjs(parser, token):
"""
Conditionally switch between AngularJS and Django variable expansion.
Usage::
{% angularjs 1 %} or simply {% angularjs %}
{% process variables through the AngularJS template engine %}
{% endangularjs %}
{% angularjs 0 %}
{% process variables through the Django template engine %}
{% endangularjs %}
Instead of 0 and 1, it is possible to use a context variable.
"""
bits = token.contents.split()
if len(bits) < 2:
bits.append('1')
values = [parser.compile_filter(bit) for bit in bits[1:]]
django_nodelist = parser.parse(('endangularjs', ))
angular_nodelist = NodeList()
for node in django_nodelist:
# convert all occurrences of VariableNode into a TextNode using the
# AngularJS double curly bracket notation
if isinstance(node, VariableNode):
node = TextNode('{{ %s }}' % node.filter_expression.token)
angular_nodelist.append(node)
parser.delete_first_token()
return AngularJsNode(django_nodelist, angular_nodelist, values[0])
def render(self, context):
if 'forloop' in context:
parentloop = context['forloop']
else:
parentloop = {}
context.push()
try:
values = self.sequence.resolve(context, True)
except VariableDoesNotExist:
values = []
if values is None:
values = []
if not hasattr(values, '__len__'):
values = list(values)
len_values = len(values)
if len_values < 1:
context.pop()
return self.nodelist_empty.render(context)
nodelist = NodeList()
if self.is_reversed:
values = reversed(values)
unpack = len(self.loopvars) > 1
# Create a forloop value in the context. We'll update counters on each
# iteration just below.
loop_dict = context['forloop'] = {'parentloop': parentloop}
for i, item in enumerate(values):
# Shortcuts for current loop iteration number.
loop_dict['counter0'] = i
loop_dict['counter'] = i+1
# Reverse counter iteration numbers.
loop_dict['revcounter'] = len_values - i
loop_dict['revcounter0'] = len_values - i - 1
# Boolean values designating first and last times through loop.
loop_dict['first'] = (i == 0)
loop_dict['last'] = (i == len_values - 1)
pop_context = False
if unpack:
# If there are multiple loop variables, unpack the item into
# them.
try:
unpacked_vars = dict(zip(self.loopvars, item))
except TypeError:
pass
else:
pop_context = True
context.update(unpacked_vars)
else:
context[self.loopvars[0]] = item
for node in self.nodelist_loop:
nodelist.append(node.render(context))
if pop_context:
# The loop variables were pushed on to the context so pop them
# off again. This is necessary because the tag lets the length
# of loopvars differ to the length of each set of items and we
# don't want to leave any vars from the previous loop on the
# context.
context.pop()
context.pop()
return nodelist.render(context)
def angularjs(parser, token):
"""
Conditionally switch between AngularJS and Django variable expansion.
Usage::
{% angularjs 1 %} or simply {% angularjs %}
{% process variables through the AngularJS template engine %}
{% endangularjs %}
{% angularjs 0 %}
{% process variables through the Django template engine %}
{% endangularjs %}
Instead of 0 and 1, it is possible to use a context variable.
"""
bits = token.contents.split()
if len(bits) < 2:
bits.append('1')
values = [parser.compile_filter(bit) for bit in bits[1:]]
django_nodelist = parser.parse(('endangularjs',))
angular_nodelist = NodeList()
for node in django_nodelist:
# convert all occurrences of VariableNode into a TextNode using the
# AngularJS double curly bracket notation
if isinstance(node, VariableNode):
node = TextNode('{{ %s }}' % node.filter_expression.token)
angular_nodelist.append(node)
parser.delete_first_token()
return AngularJsNode(django_nodelist, angular_nodelist, values[0])
def remove_block_nodes(nodelist, block_stack, block_context):
new_nodelist = NodeList()
for node in nodelist:
if isinstance(node, VariableNode):
var_name = node.filter_expression.token.strip()
if var_name == 'block.super':
if not block_stack:
continue
node = block_context.get_block(block_stack[-1].name)
if not node:
continue
if isinstance(node, BlockNode):
expanded_block = expand_blocknode(node, block_stack, block_context)
new_nodelist.extend(expanded_block)
else:
# IfNode has nodelist as a @property so we can not modify it
if isinstance(node, IfNode):
node = copy(node)
for i, (condition, sub_nodelist) in enumerate(node.conditions_nodelists):
sub_nodelist = remove_block_nodes(sub_nodelist, block_stack, block_context)
node.conditions_nodelists[i] = (condition, sub_nodelist)
else:
for attr in node.child_nodelists:
sub_nodelist = getattr(node, attr, None)
if sub_nodelist:
sub_nodelist = remove_block_nodes(sub_nodelist, block_stack, block_context)
node = copy(node)
setattr(node, attr, sub_nodelist)
new_nodelist.append(node)
return new_nodelist
def render(self, context):
if 'forloop' in context:
parentloop = context['forloop']
else:
parentloop = {}
context.push()
try:
values = self.sequence.resolve(context, True)
except VariableDoesNotExist:
values = []
if values is None:
values = []
if not hasattr(values, '__len__'):
values = list(values)
len_values = len(values)
if len_values < 1:
context.pop()
return self.nodelist_empty.render(context)
nodelist = NodeList()
if self.is_reversed:
values = reversed(values)
unpack = len(self.loopvars) > 1
# Create a forloop value in the context. We'll update counters on each
# iteration just below.
loop_dict = context['forloop'] = {'parentloop': parentloop}
for i, item in enumerate(values):
# Shortcuts for current loop iteration number.
loop_dict['counter0'] = i
loop_dict['counter'] = i + 1
# Reverse counter iteration numbers.
loop_dict['revcounter'] = len_values - i
loop_dict['revcounter0'] = len_values - i - 1
# Boolean values designating first and last times through loop.
loop_dict['first'] = (i == 0)
loop_dict['last'] = (i == len_values - 1)
pop_context = False
if unpack:
# If there are multiple loop variables, unpack the item into
# them.
try:
unpacked_vars = dict(zip(self.loopvars, item))
except TypeError:
pass
else:
pop_context = True
context.update(unpacked_vars)
else:
context[self.loopvars[0]] = item
for node in self.nodelist_loop:
nodelist.append(node.render(context))
if pop_context:
# The loop variables were pushed on to the context so pop them
# off again. This is necessary because the tag lets the length
# of loopvars differ to the length of each set of items and we
# don't want to leave any vars from the previous loop on the
# context.
context.pop()
context.pop()
return nodelist.render(context)
def slots_in_template(self, template):
nodelist = NodeList()
for node in template.template.nodelist:
if (node.token.token_type == TokenType.BLOCK
and node.token.split_contents()[0] == "slot"):
nodelist.append(node)
return nodelist
def __init__(self, loopvars, sequence, is_reversed, nodelist_headers, nodelist_loop, nodelist_empty=None):
self.loopvars, self.sequence = loopvars, sequence
self.is_reversed = is_reversed
self.nodelist_headers, self.nodelist_loop = nodelist_headers, nodelist_loop
if nodelist_empty is None:
self.nodelist_empty = NodeList()
else:
self.nodelist_empty = nodelist_empty
def render(self, slots_filled=None, *args, **kwargs):
slots_filled = slots_filled or []
context_args_variables = getfullargspec(self.context).args[1:]
context_args = {
key: kwargs[key]
for key in context_args_variables if key in kwargs
}
context = self.context(**context_args)
template = get_template(self.template(context))
slots_in_template = self.slots_in_template(template)
if slots_in_template:
valid_slot_names = set([slot.name for slot in slots_in_template])
nodelist = NodeList()
for node in template.template.nodelist:
if (node.token.token_type == TokenType.BLOCK
and node.token.split_contents()[0] == "slot"):
if node.name in valid_slot_names and node.name in slots_filled:
nodelist.append(TextNode(slots_filled[node.name]))
else:
for node in node.nodelist:
nodelist.append(node)
else:
nodelist.append(node)
render_context = Context(context)
with render_context.bind_template(template.template):
return nodelist.render(render_context)
return template.render(context)
def render(self, context):
context.push();
kwargs = self.resolve_kwargs(context)
items = Item.objects(type=kwargs['type']).order_by('-itemMeta.versionCreated')[:kwargs['length']]
nodelist = NodeList()
for item in items:
context['item'] = item
for node in self.nodelist:
nodelist.append(node.render(context))
context.pop()
return nodelist.render(context)
def render(self, context):
context.push()
nodelist = NodeList()
kwargs = self.resolve_kwargs(context)
limit = kwargs.get('limit', 55)
start = kwargs.get('start', 0)
order = kwargs.get('order', '-versionCreated')
items = Item.objects(itemClass=kwargs['class'],publishedOn__ne=None).order_by(order)[start:limit]
for item in items:
context['item'] = item
for node in self.nodelist:
nodelist.append(node.render(context))
context.pop()
return nodelist.render(context)
def render(self, context):
context.push()
items = self.get_items(context)
nodelist = NodeList()
context['package'] = context['item']
first = True
for item in items:
context['item'] = item
context['first'] = first
for node in self.nodelist:
nodelist.append(node.render(context))
first = False
context.pop()
return nodelist.render(context)
def do_component_block(parser, token):
"""
To give the component access to the template context:
{% component_block "name" positional_arg keyword_arg=value ... %}
To render the component in an isolated context:
{% component_block "name" positional_arg keyword_arg=value ... only %}
Positional and keyword arguments can be literals or template variables.
The component name must be a single- or double-quotes string and must
be either the first positional argument or, if there are no positional
arguments, passed as 'name'.
"""
bits = token.split_contents()
bits, isolated_context = check_for_isolated_context_keyword(bits)
tag_name, token = next_block_token(parser)
component, context_args, context_kwargs = parse_component_with_args(
parser, bits, 'component_block')
slots_filled = NodeList()
while tag_name != "endcomponent_block":
if tag_name == "slot":
slots_filled += do_slot(parser, token, component=component)
tag_name, token = next_block_token(parser)
return ComponentNode(component,
context_args,
context_kwargs,
slots=slots_filled,
isolated_context=isolated_context)
def do_if_can_change(parser, token):
"""
The ``{% if_can_change ocl_resource %}`` tag evaluates whether the current user has access
to the specified OCL resource.
The OCL resource can be an org, user, or any resource that contains "owner" and "owner_type"
fields. Meaning sources, source versions, concepts, mappings are fine, but not extras,
concept names/descriptions, concept versions, etc.
::
{% if_can_change ocl_resource %}
{% endif_can_change %}
"""
# NOTE: the obj_var can also be a source, org, mapping or concept
obj_var = token.split_contents()[1]
nodelist_true = parser.parse(('else', 'endif_can_change'))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse(('endif_can_change', ))
parser.delete_first_token()
else:
nodelist_false = NodeList()
return IfCanChangeNode(nodelist_true, nodelist_false, obj_var)
def acl_app_filter(parser, token):
"""Templatetag for acl checking on applications."""
try:
contents = token.split_contents()
tag_name = contents[0]
app_name = contents[1:]
except ValueError:
raise template.TemplateSyntaxError(
"%r tag require 1 argument: an application" %
token.contents.split()[0])
for name in app_name:
if name not in sys.modules.keys():
raise template.TemplateSyntaxError(
"%r is not a registered application for acl." % name)
callback = get_callback(tag_name, app_name)
oknodes = parser.parse(('acl_else', 'acl_end'))
token = parser.next_token()
if token.contents == 'acl_else':
konodes = parser.parse(('acl_end'))
token = parser.next_token()
else:
konodes = NodeList()
assert token.contents == 'acl_end'
return AclNode(callback, oknodes, konodes)
def acl_change_filter(parser, token):
"""Templatetag for acl checking a can_change_xxx function"""
try:
tag_content = token.split_contents()
# tag_name = tag_content[0]
model_name = tag_content[1]
field_name = tag_content[2]
args = tag_content[3:]
except ValueError:
raise template.TemplateSyntaxError(
"%r tag require at least 2 argument: the model and the field" %
token.contents.split()[0])
model = get_model(model_name)
callback = getattr(model, 'can_change_' + field_name)
# {% can_create %}
oknodes = parser.parse(('acl_else', 'acl_end'))
token = parser.next_token()
# {% can_create_else %}
if token.contents == 'acl_else':
konodes = parser.parse(('acl_end'))
token = parser.next_token()
else:
konodes = NodeList()
# {% can_create_end %}
assert token.contents == 'acl_end'
return AclNode(callback, oknodes, konodes, *args)
def has_permission_to_url(parser, token):
bits = list(token.split_contents())
if len(bits) < 2:
raise TemplateSyntaxError(
'"has_permission_to_url" takes minimal one argument')
end_tag = 'end' + bits[0]
kwargs = {}
for bit in bits[2:]:
match = kwarg_re.match(bit)
if not match:
raise TemplateSyntaxError(
'Malformed arguments to has_permission_to_url tag')
name, value = match.groups()
if name:
kwargs[name] = parser.compile_filter(value)
else:
raise TemplateSyntaxError(
'Malformed arguments to has_permission_to_url tag')
nodelist_true = parser.parse(('else', end_tag))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse((end_tag, ))
parser.delete_first_token()
else:
nodelist_false = NodeList()
return PermissionURLNode(parser.compile_filter(bits[1]), kwargs,
nodelist_true, nodelist_false)
def acl_model_filter(parser, token):
"""Generic definition of an acl templatetag for acl based on model"""
try:
tag_content = token.split_contents()
tag_name = tag_content[0]
model_name = tag_content[1]
args = tag_content[2:]
except ValueError:
raise template.TemplateSyntaxError(
"%r tag require at least 1 argument: the model" %
token.contents.split()[0])
model = get_model(model_name)
callback = get_callback(tag_name, model)
# {% can_create %}
oknodes = parser.parse(('acl_else', 'acl_end'))
token = parser.next_token()
# {% can_create_else %}
if token.contents == 'acl_else':
konodes = parser.parse(('acl_end'))
token = parser.next_token()
else:
konodes = NodeList()
# {% can_create_end %}
assert token.contents == 'acl_end'
return AclNode(callback, oknodes, konodes, *args)
def acl_instance_filter(parser, token):
"""Generic definition of an acl templatetag for acl based on instance"""
try:
tag_content = token.split_contents()
tag_name = tag_content[0]
instance_name = tag_content[1]
args = tag_content[2:]
except ValueError:
raise template.TemplateSyntaxError(
"%r tag require at least 1 argument: the instance" %
token.contents.split()[0])
# {% can_create %}
oknodes = parser.parse(('acl_else', 'acl_end'))
token = parser.next_token()
# {% can_create_else %}
if token.contents == 'acl_else':
konodes = parser.parse(('acl_end'))
token = parser.next_token()
else:
konodes = NodeList()
# {% can_create_end %}
assert token.contents == 'acl_end'
return AclInstanceNode(tag_name, instance_name, oknodes, konodes, *args)
def render(self, context, slots_filled=None):
slots_filled = slots_filled or {}
template = get_template(self.template(context))
slots_in_template = self.slots_in_template(template)
defined_slot_names = set(slots_in_template.keys())
filled_slot_names = set(slots_filled.keys())
unexpected_slots = filled_slot_names - defined_slot_names
if unexpected_slots:
if settings.DEBUG:
warnings.warn(
"Component {} was provided with unexpected slots: {}".
format(self.__component_name, unexpected_slots))
for unexpected_slot in unexpected_slots:
del slots_filled[unexpected_slot]
combined_slots = dict(slots_in_template, **slots_filled)
if combined_slots:
# Replace slot nodes with their nodelists, then combine into a single, flat nodelist
node_iterator = ([node] if not is_slot_node(node) else
combined_slots[node.name]
for node in template.template.nodelist)
template = copy(template.template)
template.nodelist = NodeList(chain.from_iterable(node_iterator))
else:
template = template.template
return template.render(context)
def compile_instance_template(self, template_name):
"""Use component's base template and the slots used for this instance to compile
a unified template for this instance."""
component_template = get_template(template_name)
slots_in_template = Component.slots_in_template(component_template)
defined_slot_names = set(slots_in_template.keys())
filled_slot_names = set(self.slots.keys())
unexpected_slots = filled_slot_names - defined_slot_names
if unexpected_slots:
if settings.DEBUG:
warnings.warn(
"Component {} was provided with unexpected slots: {}".format(
self._component_name, unexpected_slots
)
)
for unexpected_slot in unexpected_slots:
del self.slots[unexpected_slot]
combined_slots = dict(slots_in_template, **self.slots)
if combined_slots:
# Replace slot nodes with their nodelists, then combine into a single, flat nodelist
node_iterator = ([node] if not Component.is_slot_node(node) else combined_slots[node.name]
for node in component_template.template.nodelist)
instance_template = copy(component_template.template)
instance_template.nodelist = NodeList(chain.from_iterable(node_iterator))
else:
instance_template = component_template.template
return instance_template
def render(self, context):
from core.helper import get_request
request = get_request()
context['request'] = request
context['wepo'] = request.wepo
nodelist = NodeList()
for node in self.nodelist_field:
try:
nodelist.append(node.render(context))
except Exception as e:
if not hasattr(e, 'django_template_source'):
e.django_template_source = node.source
raise
return nodelist.render(context)
def __init__(self, loopvars, sequence, is_reversed, nodelist_loop, nodelist_empty=None):
self.loopvars, self.sequence = loopvars, sequence
self.is_reversed = is_reversed
self.nodelist_loop = nodelist_loop
if nodelist_empty is None:
self.nodelist_empty = NodeList()
else:
self.nodelist_empty = nodelist_empty
def get_node_list(parser, token, tag_name):
nodelist_true = parser.parse(('else', 'end' + tag_name))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse(('end' + tag_name, ))
parser.delete_first_token()
else:
nodelist_false = NodeList()
return nodelist_true, nodelist_false
def if_local_session(parser, token):
nodelist_true = parser.parse(('else', 'endif'))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse(('endif',))
parser.delete_first_token()
else:
nodelist_false = NodeList()
return IfLocalSession(nodelist_true, nodelist_false)
def _render_nodelist(self, nodelist, context):
for node in nodelist:
if self._can_render_node(node):
node.render(context)
elif hasattr(node, 'conditions_nodelists'):
node.conditions_nodelists = [
(condition,
NodeList([
node for node in nodelist
if self._can_render_node(node)
])) for condition, nodelist in node.conditions_nodelists
]
node.render(context)
elif hasattr(node, 'nodelist'):
node.nodelist = NodeList([
node for node in node.nodelist
if self._can_render_node(node)
])
node.render(context)
def render(self, context):
kwargs = {key: value.resolve(context) for key, value in self.kwargs.items()}
try:
if 'template_name_var' in kwargs:
extending_template = get_template(kwargs.get('template_name_var'))
else:
extending_template = get_template(self.template_name.resolve())
except:
return ''
if self.only:
flattened_context = kwargs
else:
flattened_context = context.flatten()
flattened_context.update(kwargs)
nodelist_changed = False
new_nodelist = self.get_node_list(extending_template.template.nodelist)
if 'block' in kwargs:
block_nodes = self.get_all_blocks(new_nodelist)
new_nodelist = NodeList(
[node for node in block_nodes if node.name == kwargs.get('block')]
)
new_nodelist.contains_nontext = True
nodelist_changed = True
if self.multiline:
blocks = {node.name: node for node in self.nodelist if isinstance(node, BlockNode)}
self.rearrange_blocks(new_nodelist, blocks)
nodelist_changed = True
# This is because there can also be cache loader for template. And if in template loaded with such loader nodes
# are changed, they are changed in next iteration also.
# So now I load template from empty string and give him changed nodelist. So I don't change original template
if nodelist_changed:
extending_template = template_from_string('', None)
extending_template.template.nodelist = new_nodelist
content = extending_template.render(flattened_context)
content = mark_safe(content)
return content
def _if_feature(parser, token, enabled_first):
"""Common implementation for feature-based if statements.
This constructs a :py:class:`IfFeatureNode` for the consuming template tag,
allowing for "if" and "if not" checks.
Args:
parser (django.template.Parser):
The parser being used to parse this template tag.
token (django.template.Token):
The token representing this template tag.
enabled_first (bool):
If ``True``, this behaves as an "if enabled" check.
If ``False``, this behaves as a "if disabled' check.
Returns:
IfFeatureNode:
The feature checker node to use for the template.
"""
bits = token.split_contents()
tag = bits[0]
end_tag = 'end%s' % tag
if len(bits) < 2:
raise TemplateSyntaxError('%r requires a feature ID argument' % tag)
nodelist_1 = parser.parse(('else', end_tag))
token = parser.next_token()
if token.contents == 'else':
nodelist_2 = parser.parse((end_tag, ))
parser.delete_first_token()
else:
nodelist_2 = NodeList()
if enabled_first:
nodelist_enabled = nodelist_1
nodelist_disabled = nodelist_2
else:
nodelist_disabled = nodelist_1
nodelist_enabled = nodelist_2
feature_id = parser.compile_filter(bits[1])
remaining_bits = bits[2:]
extra_kwargs = token_kwargs(remaining_bits, parser)
if remaining_bits:
raise TemplateSyntaxError('%r received an invalid token: %r' %
(tag, remaining_bits[0]))
return IfFeatureNode(nodelist_enabled, nodelist_disabled, feature_id,
extra_kwargs)
def open_registration(parser, token):
nodelist_true = parser.parse(('else', 'endopen_registration'))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse(('endopen_registration', ))
parser.delete_first_token()
else:
nodelist_false = NodeList()
return OpenRegistrationNode(OPEN_REG, nodelist_true, nodelist_false)
def do_component(parser, token):
"""
{% component_block "name" variable="value" variable2="value2" ... %}
"""
bits = token.split_contents()
tag_args, tag_kwargs = parse_bits(
parser=parser,
bits=bits,
params=["tag_name", "component_name"],
takes_context=False,
name="component_block",
**PARSE_BITS_DEFAULTS
)
tag_name = tag_args.pop(0)
if len(bits) < 2:
raise TemplateSyntaxError(
"Call the '%s' tag with a component name as the first parameter" % tag_name
)
component_name = bits[1]
if not component_name.startswith(('"', "'")) or not component_name.endswith(
('"', "'")
):
raise TemplateSyntaxError(
"Component name '%s' should be in quotes" % component_name
)
component_name = component_name.strip('"\'')
component_class = registry.get(component_name)
component = component_class()
extra_context = {}
if len(bits) > 2:
extra_context = component.context(**token_kwargs(bits[2:], parser))
slots_filled = NodeList()
tag_name = bits[0]
while tag_name != "endcomponent_block":
token = parser.next_token()
if token.token_type != TokenType.BLOCK:
continue
tag_name = token.split_contents()[0]
if tag_name == "slot":
slots_filled += do_slot(parser, token, component=component)
elif tag_name == "endcomponent_block":
break
return ComponentNode(component, extra_context, slots_filled)
def render(self, context):
section = self.section.resolve(context, True)
page = self.page.resolve(context, True)
import json
page_blocks = page.blocks if page and page.blocks else []
page_section = page_blocks[section] if section in page_blocks else []
nodelist = NodeList()
context[self.output_var] = page_section
for node in self.nodelist_field:
try:
nodelist.append(node.render(context))
except Exception as e:
if not hasattr(e, 'django_template_source'):
e.django_template_source = node.source
raise
return nodelist.render(context)
def remove_block_nodes(nodelist, block_stack, block_context):
new_nodelist = NodeList()
for node in nodelist:
if isinstance(node, VariableNode):
var_name = node.filter_expression.token.strip()
if var_name == 'block.super':
if not block_stack:
continue
node = block_context.get_block(block_stack[-1].name)
if not node:
continue
if isinstance(node, BlockNode):
expanded_block = expand_blocknode(node, block_stack, block_context)
new_nodelist.extend(expanded_block)
else:
# IfNode has nodelist as a @property so we can not modify it
if isinstance(node, IfNode):
node = copy(node)
for i, (condition,
sub_nodelist) in enumerate(node.conditions_nodelists):
sub_nodelist = remove_block_nodes(sub_nodelist,
block_stack,
block_context)
node.conditions_nodelists[i] = (condition, sub_nodelist)
else:
for attr in node.child_nodelists:
sub_nodelist = getattr(node, attr, None)
if sub_nodelist:
sub_nodelist = remove_block_nodes(
sub_nodelist, block_stack, block_context)
node = copy(node)
setattr(node, attr, sub_nodelist)
new_nodelist.append(node)
return new_nodelist
def render(self, context):
permissions = [permission.resolve(context, True) for permission in self.permissions]
#
# check if has permissions
#
from core.helper import get_request
from core.permission import check_permissions
status, action = check_permissions(get_request(), permissions)
nodelist = NodeList()
if status:
for node in self.nodelist_permission:
try:
nodelist.append(node.render(context))
except Exception as e:
if not hasattr(e, 'django_template_source'):
e.django_template_source = node.source
raise
else:
if self.nodelist_nopermission:
for node in self.nodelist_nopermission:
try:
nodelist.append(node.render(context))
except Exception as e:
if not hasattr(e, 'django_template_source'):
e.django_template_source = node.source
raise
return nodelist.render(context)
def do_ifinstalled(parser, token, negate):
bits = list(token.split_contents())
if len(bits) != 2:
raise TemplateSyntaxError("%r takes one argument" % bits[0])
end_tag = 'end' + bits[0]
nodelist_true = parser.parse(('else', end_tag))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse((end_tag, ))
parser.delete_first_token()
else:
nodelist_false = NodeList()
app = parser.compile_filter(bits[1])
return IfInstalledNode(app, nodelist_true, nodelist_false, negate)
def do_ifequal(parser, token, negate):
bits = list(token.split_contents())
if len(bits) != 3:
raise TemplateSyntaxError("%r takes two arguments" % bits[0])
end_tag = 'end' + bits[0]
nodelist_true = parser.parse(('else', end_tag))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse((end_tag, ))
parser.delete_first_token()
else:
nodelist_false = NodeList()
val1 = parser.compile_filter(bits[1])
val2 = parser.compile_filter(bits[2])
return IfEqualNode(val1, val2, nodelist_true, nodelist_false, negate)
def do_ifgroupperm(parser, token):
bits = list(token.split_contents())
if len(bits) != 3:
raise TemplateSyntaxError("%r takes two arguments" % bits[0])
end_tag = 'end' + bits[0]
nodelist_true = parser.parse(('else', end_tag))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse((end_tag,))
parser.delete_first_token()
else:
nodelist_false = NodeList()
group_obj = parser.compile_filter(bits[1])
perm_id = parser.compile_filter(bits[2])
return IfGroupPermNode(group_obj, perm_id, nodelist_true, nodelist_false)
def acl_history_filter(parser, token):
"""Templatetag for acl checking on history."""
tag_name, = token.split_contents()
callback = get_callback(tag_name)
oknodes = parser.parse(('acl_else', 'acl_end'))
token = parser.next_token()
if token.contents == 'acl_else':
konodes = parser.parse(('acl_end'))
token = parser.next_token()
else:
konodes = NodeList()
assert token.contents == 'acl_end'
return AclNode(callback, oknodes, konodes)
def parse_through(self, parse_until=None):
if parse_until is None:
parse_until = []
nodelist = NodeList()
while self.tokens:
token = self.next_token()
if six.PY2:
contents = token.contents.encode('utf8')
else:
contents = token.contents
if token.token_type == TokenType.TEXT:
self.dest_stream.write(contents)
elif token.token_type == TokenType.VAR:
self.dest_stream.write("{{%s}}" % contents)
elif token.token_type == TokenType.BLOCK:
try:
command = token.contents.split()[0]
except IndexError:
self.empty_block_tag(token)
if command in parse_until:
# put token back on token list so calling
# code knows why it terminated
self.prepend_token(token)
return nodelist
if command == 'assets':
try:
# XXX This should work but for some reason debug does
# not get propagated.
# Lost in webassets.bundle.resolve_contents
token.contents += ' debug=False'
assets_string = str(
assets(self, token).render(self.context))
self.dest_stream.write(assets_string)
except TemplateSyntaxError as err:
if hasattr(self, 'error'):
raise self.error(token, err)
# Django < 1.8
if not self.compile_function_error(token, err):
raise
elif command == 'static':
self.dest_stream.write(
do_static(self, token).render(self.context))
else:
self.dest_stream.write("{%% %s %%}" % contents)
elif token.token_type == TokenType.COMMENT:
pass
def has_permission(parser, token):
bits = list(token.split_contents())
if len(bits) < 2:
raise TemplateSyntaxError("%r takes minimal one argument" % bits[0])
end_tag = 'end' + bits[0]
vals = []
for bit in bits[2:]:
vals.append(parser.compile_filter(bit))
nodelist_true = parser.parse(('else', end_tag))
token = parser.next_token()
if token.contents == 'else':
nodelist_false = parser.parse((end_tag, ))
parser.delete_first_token()
else:
nodelist_false = NodeList()
return PermissionNode(parser.compile_filter(bits[1]), vals, nodelist_true,
nodelist_false)
def parse_token(cls, parser, token):
bits = token.split_contents()
tag_name = bits[0]
args, kwargs = cls.parse_arguments(parser, tag_name, bits[1:])
if cls.literal_content:
content = ''.join(cls.parse_literals(parser, tag_name))
nodelist = NodeList()
else:
content = ''
nodelist = cls.parse_nodelist(parser, tag_name)
return {
'tag_name': tag_name,
'args': args,
'kwargs': kwargs,
'content': content,
'nodelist': nodelist,
}
def render(self, context):
if "forloop" in context:
parentloop = context["forloop"]
else:
parentloop = {}
context.push()
try:
values = self.sequence.resolve(context, True)
except VariableDoesNotExist:
values = []
if values is None:
values = []
if not hasattr(values, "__len__"):
values = list(values)
len_values = len(values)
if len_values < 1:
context.pop()
return self.nodelist_empty.render(context)
nodelist = NodeList()
if self.is_reversed:
values = reversed(values)
unpack = len(self.loopvars) > 1
# Create a forloop value in the context. We'll update counters on each
# iteration just below.
loop_dict = context["forloop"] = {"parentloop": parentloop}
for i, item in enumerate(values):
# Shortcuts for current loop iteration number.
loop_dict["counter0"] = i
loop_dict["counter"] = i + 1
# Reverse counter iteration numbers.
loop_dict["revcounter"] = len_values - i
loop_dict["revcounter0"] = len_values - i - 1
# Boolean values designating first and last times through loop.
loop_dict["first"] = i == 0
loop_dict["last"] = i == len_values - 1
pop_context = False
if unpack:
# If there are multiple loop variables, unpack the item into
# them.
try:
unpacked_vars = dict(zip(self.loopvars, item))
except TypeError:
pass
else:
pop_context = True
context.update(unpacked_vars)
else:
context[self.loopvars[0]] = item
# In TEMPLATE_DEBUG mode provide source of the node which
# actually raised the exception
if settings.TEMPLATE_DEBUG:
for node in self.nodelist_loop:
try:
nodelist.append(node.render(context))
except Exception as e:
if not hasattr(e, "django_template_source"):
e.django_template_source = node.source
raise
else:
for node in self.nodelist_loop:
nodelist.append(node.render(context))
if pop_context:
# The loop variables were pushed on to the context so pop them
# off again. This is necessary because the tag lets the length
# of loopvars differ to the length of each set of items and we
# don't want to leave any vars from the previous loop on the
# context.
context.pop()
context.pop()
return nodelist.render(context)
class ForNode(Node):
child_nodelists = ("nodelist_loop", "nodelist_empty")
def __init__(self, loopvars, sequence, is_reversed, nodelist_loop, nodelist_empty=None):
self.loopvars, self.sequence = loopvars, sequence
self.is_reversed = is_reversed
self.nodelist_loop = nodelist_loop
if nodelist_empty is None:
self.nodelist_empty = NodeList()
else:
self.nodelist_empty = nodelist_empty
def __repr__(self):
reversed_text = self.is_reversed and " reversed" or ""
return "<For Node: for %s in %s, tail_len: %d%s>" % (
", ".join(self.loopvars),
self.sequence,
len(self.nodelist_loop),
reversed_text,
)
def __iter__(self):
for node in self.nodelist_loop:
yield node
for node in self.nodelist_empty:
yield node
def render(self, context):
if "forloop" in context:
parentloop = context["forloop"]
else:
parentloop = {}
context.push()
try:
values = self.sequence.resolve(context, True)
except VariableDoesNotExist:
values = []
if values is None:
values = []
if not hasattr(values, "__len__"):
values = list(values)
len_values = len(values)
if len_values < 1:
context.pop()
return self.nodelist_empty.render(context)
nodelist = NodeList()
if self.is_reversed:
values = reversed(values)
unpack = len(self.loopvars) > 1
# Create a forloop value in the context. We'll update counters on each
# iteration just below.
loop_dict = context["forloop"] = {"parentloop": parentloop}
for i, item in enumerate(values):
# Shortcuts for current loop iteration number.
loop_dict["counter0"] = i
loop_dict["counter"] = i + 1
# Reverse counter iteration numbers.
loop_dict["revcounter"] = len_values - i
loop_dict["revcounter0"] = len_values - i - 1
# Boolean values designating first and last times through loop.
loop_dict["first"] = i == 0
loop_dict["last"] = i == len_values - 1
pop_context = False
if unpack:
# If there are multiple loop variables, unpack the item into
# them.
try:
unpacked_vars = dict(zip(self.loopvars, item))
except TypeError:
pass
else:
pop_context = True
context.update(unpacked_vars)
else:
context[self.loopvars[0]] = item
for node in self.nodelist_loop:
nodelist.append(node.render(context))
if pop_context:
# The loop variables were pushed on to the context so pop them
# off again. This is necessary because the tag lets the length
# of loopvars differ to the length of each set of items and we
# don't want to leave any vars from the previous loop on the
# context.
context.pop()
context.pop()
return nodelist.render(context)
class ForNode(Node):
child_nodelists = ('nodelist_loop', 'nodelist_empty')
def __init__(self, loopvars, sequence, is_reversed, nodelist_loop, nodelist_empty=None):
self.loopvars, self.sequence = loopvars, sequence
self.is_reversed = is_reversed
self.nodelist_loop = nodelist_loop
if nodelist_empty is None:
self.nodelist_empty = NodeList()
else:
self.nodelist_empty = nodelist_empty
def __repr__(self):
reversed_text = ' reversed' if self.is_reversed else ''
return "<For Node: for %s in %s, tail_len: %d%s>" % \
(', '.join(self.loopvars), self.sequence, len(self.nodelist_loop),
reversed_text)
def __iter__(self):
for node in self.nodelist_loop:
yield node
for node in self.nodelist_empty:
yield node
def render(self, context):
if 'forloop' in context:
parentloop = context['forloop']
else:
parentloop = {}
with context.push():
try:
values = self.sequence.resolve(context, True)
except VariableDoesNotExist:
values = []
if values is None:
values = []
if not hasattr(values, '__len__'):
values = list(values)
len_values = len(values)
if len_values < 1:
return self.nodelist_empty.render(context)
nodelist = []
if self.is_reversed:
values = reversed(values)
unpack = len(self.loopvars) > 1
# Create a forloop value in the context. We'll update counters on each
# iteration just below.
loop_dict = context['forloop'] = {'parentloop': parentloop}
for i, item in enumerate(values):
# Shortcuts for current loop iteration number.
loop_dict['counter0'] = i
loop_dict['counter'] = i + 1
# Reverse counter iteration numbers.
loop_dict['revcounter'] = len_values - i
loop_dict['revcounter0'] = len_values - i - 1
# Boolean values designating first and last times through loop.
loop_dict['first'] = (i == 0)
loop_dict['last'] = (i == len_values - 1)
pop_context = False
if unpack:
# If there are multiple loop variables, unpack the item into
# them.
try:
unpacked_vars = dict(zip(self.loopvars, item))
except TypeError:
pass
else:
pop_context = True
context.update(unpacked_vars)
else:
context[self.loopvars[0]] = item
# In TEMPLATE_DEBUG mode provide source of the node which
# actually raised the exception
if settings.TEMPLATE_DEBUG:
for node in self.nodelist_loop:
try:
nodelist.append(node.render(context))
except Exception as e:
if not hasattr(e, 'django_template_source'):
e.django_template_source = node.source
raise
else:
for node in self.nodelist_loop:
nodelist.append(node.render(context))
if pop_context:
# The loop variables were pushed on to the context so pop them
# off again. This is necessary because the tag lets the length
# of loopvars differ to the length of each set of items and we
# don't want to leave any vars from the previous loop on the
# context.
context.pop()
return mark_safe(''.join(force_text(n) for n in nodelist))