def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
python类Template()的实例源码
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_template(self, name, parent=None, globals=None):
"""Load a template from the loader. If a loader is configured this
method ask the loader for the template and returns a :class:`Template`.
If the `parent` parameter is not `None`, :meth:`join_path` is called
to get the real template name before loading.
The `globals` parameter can be used to provide template wide globals.
These variables are available in the context at render time.
If the template does not exist a :exc:`TemplateNotFound` exception is
raised.
.. versionchanged:: 2.4
If `name` is a :class:`Template` object it is returned from the
function unchanged.
"""
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
return self._load_template(name, self.make_globals(globals))
def select_template(self, names, parent=None, globals=None):
"""Works like :meth:`get_template` but tries a number of templates
before it fails. If it cannot find any of the templates, it will
raise a :exc:`TemplatesNotFound` exception.
.. versionadded:: 2.3
.. versionchanged:: 2.4
If `names` contains a :class:`Template` object it is returned
from the function unchanged.
"""
if not names:
raise TemplatesNotFound(message=u'Tried to select from an empty list '
u'of templates.')
globals = self.make_globals(globals)
for name in names:
if isinstance(name, Template):
return name
if parent is not None:
name = self.join_path(name, parent)
try:
return self._load_template(name, globals)
except TemplateNotFound:
pass
raise TemplatesNotFound(names)
def get_or_select_template(self, template_name_or_list,
parent=None, globals=None):
"""Does a typecheck and dispatches to :meth:`select_template`
if an iterable of template names is given, otherwise to
:meth:`get_template`.
.. versionadded:: 2.3
"""
if isinstance(template_name_or_list, string_types):
return self.get_template(template_name_or_list, parent, globals)
elif isinstance(template_name_or_list, Template):
return template_name_or_list
return self.select_template(template_name_or_list, parent, globals)
