def show_more(context, label=None, loading=settings.LOADING):
"""Show the link to get the next page in a Twitter-like pagination.
Usage::
{% show_more %}
Alternatively you can override the label passed to the default template::
{% show_more "even more" %}
You can override the loading text too::
{% show_more "even more" "working" %}
Must be called after ``{% paginate objects %}``.
"""
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the showmore template.
data = utils.get_data_from_context(context)
page = data['page']
# show the template only if there is a next page
if page.has_next():
request = context['request']
page_number = page.next_page_number()
return _render_show_more(data, label, loading, page_number, request)
# No next page, nothing to see.
return {}
def show_more(context, label=None, loading=settings.LOADING):
"""Show the link to get the next page in a Twitter-like pagination.
Usage::
{% show_more %}
Alternatively you can override the label passed to the default template::
{% show_more "even more" %}
You can override the loading text too::
{% show_more "even more" "working" %}
Must be called after ``{% paginate objects %}``.
"""
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the showmore template.
data = utils.get_data_from_context(context)
page = data['page']
querystring_key = data['querystring_key']
request = context['request']
page_info = {}
# show the template only if there is a next page
if page.has_next():
page_number = page.next_page_number()
# Generate the querystring.
querystring = utils.get_querystring_for_page(
request, page_number, querystring_key,
default_number=data['default_number'])
page_info.update({
'label': label,
'loading': loading,
'path': iri_to_uri(data['override_path'] or request.path),
'querystring': querystring,
'querystring_key': querystring_key,
'request': request,
})
context['next_querystring'] = querystring
if page.has_previous():
page_number = page.previous_page_number()
querystring = utils.get_querystring_for_page(
request, page_number, querystring_key,
default_number=data['default_number'])
context['previous_querystring'] = querystring
# No next page, nothing to see.
return page_info
def render(self, context):
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the getpages template.
data = utils.get_data_from_context(context)
# Return the string representation of the sequence of pages.
pages = models.PageList(
context['request'],
data['page'],
data['querystring_key'],
default_number=data['default_number'],
override_path=data['override_path'],
)
return utils.text(pages)
def render(self, context):
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the getpages template.
data = utils.get_data_from_context(context)
# Add the PageList instance to the context.
context[self.var_name] = models.PageList(
context['request'],
data['page'],
data['querystring_key'],
default_number=data['default_number'],
override_path=data['override_path'],
)
return ''
def render(self, context):
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the getpages template.
data = utils.get_data_from_context(context)
# Return the string representation of the sequence of pages.
pages = models.PageList(
context['request'],
data['page'],
data['querystring_key'],
default_number=data['default_number'],
override_path=data['override_path'],
)
return utils.text(pages)
def render(self, context):
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the getpages template.
data = utils.get_data_from_context(context)
# Add the PageList instance to the context.
context[self.var_name] = models.PageList(
context['request'],
data['page'],
data['querystring_key'],
default_number=data['default_number'],
override_path=data['override_path'],
)
return ''
def show_more(context, label=None, loading=settings.LOADING, class_name=None):
"""Show the link to get the next page in a Twitter-like pagination.
Usage::
{% show_more %}
Alternatively you can override the label passed to the default template::
{% show_more "even more" %}
You can override the loading text too::
{% show_more "even more" "working" %}
You could pass in the extra CSS style class name as a third argument
{% show_more "even more" "working" "class_name" %}
Must be called after ``{% paginate objects %}``.
"""
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the showmore template.
data = utils.get_data_from_context(context)
page = data['page']
# show the template only if there is a next page
if page.has_next():
request = context['request']
page_number = page.next_page_number()
# Generate the querystring.
querystring_key = data['querystring_key']
querystring = utils.get_querystring_for_page(
request, page_number, querystring_key,
default_number=data['default_number'])
return {
'label': label,
'loading': loading,
'class_name': class_name,
'path': iri_to_uri(data['override_path'] or request.path),
'querystring': querystring,
'querystring_key': querystring_key,
'request': request,
}
# No next page, nothing to see.
return {}
def show_more_up(context, label=None, loading=settings.LOADING):
"""Show the link to get the previous page in a Twitter-like pagination.
Usage:: same as show more
"""
# This template tag could raise a PaginationError: you have to call
# *paginate* or *lazy_paginate* before including the showmore template.
data = utils.get_data_from_context(context)
page = data['page']
# show the template only if there is a next page
if page.has_previous() and page.previous_page_number()>1:
request = context['request']
page_number = page.previous_page_number()
return _render_show_more(data, label, loading, page_number, request)
# No next page, nothing to see.
return {}
def test_valid_context(self):
# Ensure the endless data is correctly retrieved from context.
context = {'endless': 'test-data'}
self.assertEqual('test-data', utils.get_data_from_context(context))
def test_valid_context(self):
# Ensure the endless data is correctly retrieved from context.
context = {'endless': 'test-data'}
self.assertEqual('test-data', utils.get_data_from_context(context))