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adding additional django template examples
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‎content/pages/examples/django/django-template-base-context.markdown‎

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title: django.template.base Context Example Code
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category: page
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slug: django-template-base-context-examples
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sortorder: 500011363
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toc: False
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sidebartitle: django.template.base Context
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meta: Python example code for the Context class from the django.template.base module of the Django project.
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Context is a class within the django.template.base module of the Django project.
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## Example 1 from django-pipeline
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[django-pipeline](https://github.com/jazzband/django-pipeline)
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([project documentation](https://django-pipeline.readthedocs.io/en/latest/)
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and
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[PyPI package information](https://pypi.org/project/django-pipeline/))
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is a code library for handling and compressing
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[static content assets](/static-content.html) when handling requests in
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[Django](/django.html) web applications.
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The django-pipeline project is open sourced under the
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[MIT License](https://github.com/jazzband/django-pipeline/blob/master/LICENSE.txt)
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and it is maintained by the developer community group
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[Jazzband](https://jazzband.co/).
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[**django-pipeline / pipeline / templatetags / pipeline.py**](https://github.com/jazzband/django-pipeline/blob/master/pipeline/templatetags/pipeline.py)
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```python
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# pipeline.py
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import logging
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import subprocess
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from django.contrib.staticfiles.storage import staticfiles_storage
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from django import template
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~~from django.template.base import Context, VariableDoesNotExist
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from django.template.loader import render_to_string
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from django.utils.safestring import mark_safe
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from ..collector import default_collector
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from ..conf import settings
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from ..exceptions import CompilerError
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from ..packager import Packager, PackageNotFound
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from ..utils import guess_type
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logger = logging.getLogger(__name__)
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register = template.Library()
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class PipelineMixin(object):
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request = None
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_request_var = None
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@property
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def request_var(self):
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if not self._request_var:
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self._request_var = template.Variable('request')
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return self._request_var
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## ... source file continues with no further Context examples...
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```
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‎content/pages/examples/django/django-template-base-filterexpression.markdown‎

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title: django.template.base FilterExpression Example Code
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category: page
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slug: django-template-base-filterexpression-examples
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sortorder: 500011364
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toc: False
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sidebartitle: django.template.base FilterExpression
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meta: Python example code for the FilterExpression class from the django.template.base module of the Django project.
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FilterExpression is a class within the django.template.base module of the Django project.
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## Example 1 from django-sitetree
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[django-sitetree](https://github.com/idlesign/django-sitetree)
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([project documentation](https://django-sitetree.readthedocs.io/en/latest/)
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and
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[PyPI package information](https://pypi.org/project/django-sitetree/))
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is a [Django](/django.html) extension that makes it easier for
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developers to add site trees, menus and breadcrumb navigation elements
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to their web applications.
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The django-sitetree project is provided as open source under the
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[BSD 3-Clause "New" or "Revised" License](https://github.com/idlesign/django-sitetree/blob/master/LICENSE).
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[**django-sitetree / sitetree / templatetags / sitetree.py**](https://github.com/idlesign/django-sitetree/blob/master/sitetree/templatetags/sitetree.py)
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```python
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# sitetree.py
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from django import template
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~~from django.template.base import FilterExpression
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from django.template.loader import get_template
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from ..sitetreeapp import get_sitetree
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register = template.Library()
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@register.tag
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def sitetree_tree(parser, token):
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tokens = token.split_contents()
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use_template = detect_clause(parser, 'template', tokens)
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tokens_num = len(tokens)
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if tokens_num in (3, 5):
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tree_alias = parser.compile_filter(tokens[2])
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return sitetree_treeNode(tree_alias, use_template)
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else:
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raise template.TemplateSyntaxError(
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'%r tag requires two arguments. E.g. {%% sitetree_tree from "mytree" %%}.' % tokens[0])
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@register.tag
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def sitetree_children(parser, token):
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tokens = token.split_contents()
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## ... source file abbreviated to get to FilterExpression examples ...
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def get_value(self, context):
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return get_sitetree().get_current_page_attr('description', self.item, context)
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class sitetree_page_hintNode(SimpleNode):
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def get_value(self, context):
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return get_sitetree().get_current_page_attr('hint', self.item, context)
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def detect_clause(parser, clause_name, tokens):
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if clause_name in tokens:
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t_index = tokens.index(clause_name)
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clause_value = parser.compile_filter(tokens[t_index + 1])
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del tokens[t_index:t_index + 2]
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else:
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clause_value = None
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return clause_value
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def render(context, tree_items, use_template):
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context.push()
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context['sitetree_items'] = tree_items
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~~ if isinstance(use_template, FilterExpression):
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use_template = use_template.resolve(context)
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content = get_template(use_template).render(context.flatten())
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context.pop()
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return content
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## ... source file continues with no further FilterExpression examples...
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```
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‎content/pages/examples/django/django-template-base-node.markdown‎

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title: django.template.base Node Example Code
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category: page
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slug: django-template-base-node-examples
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sortorder: 500011365
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toc: False
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sidebartitle: django.template.base Node
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meta: Python example code for the Node class from the django.template.base module of the Django project.
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Node is a class within the django.template.base module of the Django project.
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## Example 1 from django-angular
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[django-angular](https://github.com/jrief/django-angular)
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([project examples website](https://django-angular.awesto.com/classic_form/))
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is a library with helper code to make it easier to use
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[Angular](/angular.html) as the front-end to [Django](/django.html) projects.
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The code for django-angular is
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[open source under the MIT license](https://github.com/jrief/django-angular/blob/master/LICENSE.txt).
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[**django-angular / djng / templatetags / djng_tags.py**](https://github.com/jrief/django-angular/blob/master/djng/templatetags/djng_tags.py)
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```python
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# djng_tags.py
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import json
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from django.template import Library
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~~from django.template.base import Node, NodeList, TextNode, VariableNode
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from django.utils.html import format_html
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from django.utils.safestring import mark_safe
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from django.utils.translation import get_language_from_request
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from djng.core.urlresolvers import get_all_remote_methods, get_current_remote_methods
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register = Library()
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@register.simple_tag(name='djng_all_rmi')
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def djng_all_rmi():
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return mark_safe(json.dumps(get_all_remote_methods()))
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@register.simple_tag(name='djng_current_rmi', takes_context=True)
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def djng_current_rmi(context):
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return mark_safe(json.dumps(get_current_remote_methods(context.get('view'))))
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@register.simple_tag(name='load_djng_urls', takes_context=True)
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def djng_urls(context, *namespaces):
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raise DeprecationWarning(
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"load_djng_urls templatetag is deprecated and has been removed from this version of django-angular."
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"Please refer to documentation for updated way to manage django urls in angular.")
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~~class AngularJsNode(Node):
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def __init__(self, django_nodelist, angular_nodelist, variable):
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self.django_nodelist = django_nodelist
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self.angular_nodelist = angular_nodelist
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self.variable = variable
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def render(self, context):
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if self.variable.resolve(context):
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return self.angular_nodelist.render(context)
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return self.django_nodelist.render(context)
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@register.tag
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def angularjs(parser, token):
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bits = token.contents.split()
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if len(bits) < 2:
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bits.append('1')
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values = [parser.compile_filter(bit) for bit in bits[1:]]
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django_nodelist = parser.parse(('endangularjs',))
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angular_nodelist = NodeList()
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for node in django_nodelist:
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if isinstance(node, VariableNode):
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tokens = node.filter_expression.token.split('.')
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token = tokens[0]
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for part in tokens[1:]:
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## ... source file continues with no further Node examples...
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```
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‎content/pages/examples/django/django-template-base-nodelist.markdown‎

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title: django.template.base NodeList Example Code
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category: page
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slug: django-template-base-nodelist-examples
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sortorder: 500011366
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toc: False
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sidebartitle: django.template.base NodeList
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meta: Python example code for the NodeList class from the django.template.base module of the Django project.
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NodeList is a class within the django.template.base module of the Django project.
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## Example 1 from django-angular
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[django-angular](https://github.com/jrief/django-angular)
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([project examples website](https://django-angular.awesto.com/classic_form/))
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is a library with helper code to make it easier to use
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[Angular](/angular.html) as the front-end to [Django](/django.html) projects.
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The code for django-angular is
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[open source under the MIT license](https://github.com/jrief/django-angular/blob/master/LICENSE.txt).
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[**django-angular / djng / templatetags / djng_tags.py**](https://github.com/jrief/django-angular/blob/master/djng/templatetags/djng_tags.py)
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```python
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# djng_tags.py
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import json
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from django.template import Library
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~~from django.template.base import Node, NodeList, TextNode, VariableNode
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from django.utils.html import format_html
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from django.utils.safestring import mark_safe
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from django.utils.translation import get_language_from_request
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from djng.core.urlresolvers import get_all_remote_methods, get_current_remote_methods
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register = Library()
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@register.simple_tag(name='djng_all_rmi')
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def djng_all_rmi():
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return mark_safe(json.dumps(get_all_remote_methods()))
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@register.simple_tag(name='djng_current_rmi', takes_context=True)
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def djng_current_rmi(context):
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return mark_safe(json.dumps(get_current_remote_methods(context.get('view'))))
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@register.simple_tag(name='load_djng_urls', takes_context=True)
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def djng_urls(context, *namespaces):
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raise DeprecationWarning(
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"load_djng_urls templatetag is deprecated and has been removed from this version of django-angular."
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"Please refer to documentation for updated way to manage django urls in angular.")
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class AngularJsNode(Node):
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def __init__(self, django_nodelist, angular_nodelist, variable):
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self.django_nodelist = django_nodelist
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self.angular_nodelist = angular_nodelist
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self.variable = variable
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def render(self, context):
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if self.variable.resolve(context):
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return self.angular_nodelist.render(context)
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return self.django_nodelist.render(context)
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@register.tag
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def angularjs(parser, token):
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bits = token.contents.split()
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if len(bits) < 2:
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bits.append('1')
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values = [parser.compile_filter(bit) for bit in bits[1:]]
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django_nodelist = parser.parse(('endangularjs',))
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~~ angular_nodelist = NodeList()
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for node in django_nodelist:
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if isinstance(node, VariableNode):
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tokens = node.filter_expression.token.split('.')
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token = tokens[0]
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for part in tokens[1:]:
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if part.isdigit():
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token += '[%s]' % part
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else:
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token += '.%s' % part
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node = TextNode('{{ %s }}' % token)
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angular_nodelist.append(node)
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parser.delete_first_token()
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return AngularJsNode(django_nodelist, angular_nodelist, values[0])
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@register.simple_tag(name='djng_locale_script', takes_context=True)
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def djng_locale_script(context, default_language='en'):
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language = get_language_from_request(context['request'])
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if not language:
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language = default_language
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return format_html('angular-locale_{}.js', language.lower())
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## ... source file continues with no further NodeList examples...
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```
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