def do_form_field(parser, token):
"""
Render a WTForms form field allowing optional HTML attributes.
Invocation looks like this:
{% form_field form.username class="big_text" onclick="alert('hello')" %}
where form.username is the path to the field value we want. Any number
of key="value" arguments are supported. Unquoted values are resolved as
template variables.
"""
parts = token.contents.split(' ', 2)
if len(parts) < 2:
error_text = '%r tag must have the form field name as the first value, followed by optional key="value" attributes.'
raise template.TemplateSyntaxError(error_text % parts[0])
html_attrs = {}
if len(parts) == 3:
raw_args = list(args_split(parts[2]))
if (len(raw_args) % 2) != 0:
raise template.TemplateSyntaxError('%r tag received the incorrect number of key=value arguments.' % parts[0])
for x in range(0, len(raw_args), 2):
html_attrs[str(raw_args[x])] = Variable(raw_args[x + 1])
return FormFieldNode(parts[1], html_attrs)
python类Variable()的实例源码
def render(self, context):
try:
if '.' in self.field_var:
base, field_name = self.field_var.rsplit('.', 1)
field = getattr(Variable(base).resolve(context), field_name)
else:
field = context[self.field_var]
except (template.VariableDoesNotExist, KeyError, AttributeError):
return settings.TEMPLATE_STRING_IF_INVALID
h_attrs = {}
for k, v in iteritems(self.html_attrs):
try:
h_attrs[k] = v.resolve(context)
except template.VariableDoesNotExist:
h_attrs[k] = settings.TEMPLATE_STRING_IF_INVALID
return field(**h_attrs)
def do_form_field(parser, token):
"""
Render a WTForms form field allowing optional HTML attributes.
Invocation looks like this:
{% form_field form.username class="big_text" onclick="alert('hello')" %}
where form.username is the path to the field value we want. Any number
of key="value" arguments are supported. Unquoted values are resolved as
template variables.
"""
parts = token.contents.split(' ', 2)
if len(parts) < 2:
error_text = '%r tag must have the form field name as the first value, followed by optional key="value" attributes.'
raise template.TemplateSyntaxError(error_text % parts[0])
html_attrs = {}
if len(parts) == 3:
raw_args = list(args_split(parts[2]))
if (len(raw_args) % 2) != 0:
raise template.TemplateSyntaxError('%r tag received the incorrect number of key=value arguments.' % parts[0])
for x in range(0, len(raw_args), 2):
html_attrs[str(raw_args[x])] = Variable(raw_args[x + 1])
return FormFieldNode(parts[1], html_attrs)
def handle_var(value, context):
"""
Handle template tag variable
"""
# Resolve FilterExpression and Variable immediately
if isinstance(value, FilterExpression) or isinstance(value, Variable):
return value.resolve(context)
# Return quoted strings unquoted
# http://djangosnippets.org/snippets/886
stringval = QUOTED_STRING.search(value)
if stringval:
return stringval.group('noquotes')
# Resolve variable or return string value
try:
return Variable(value).resolve(context)
except VariableDoesNotExist:
return value
def render(self, context):
try:
if '.' in self.field_var:
base, field_name = self.field_var.rsplit('.', 1)
field = getattr(Variable(base).resolve(context), field_name)
else:
field = context[self.field_var]
except (template.VariableDoesNotExist, KeyError, AttributeError):
return settings.TEMPLATE_STRING_IF_INVALID
h_attrs = {}
for k, v in iteritems(self.html_attrs):
try:
h_attrs[k] = v.resolve(context)
except template.VariableDoesNotExist:
h_attrs[k] = settings.TEMPLATE_STRING_IF_INVALID
return field(**h_attrs)
def do_form_field(parser, token):
"""
Render a WTForms form field allowing optional HTML attributes.
Invocation looks like this:
{% form_field form.username class="big_text" onclick="alert('hello')" %}
where form.username is the path to the field value we want. Any number
of key="value" arguments are supported. Unquoted values are resolved as
template variables.
"""
parts = token.contents.split(' ', 2)
if len(parts) < 2:
error_text = '%r tag must have the form field name as the first value, followed by optional key="value" attributes.'
raise template.TemplateSyntaxError(error_text % parts[0])
html_attrs = {}
if len(parts) == 3:
raw_args = list(args_split(parts[2]))
if (len(raw_args) % 2) != 0:
raise template.TemplateSyntaxError('%r tag received the incorrect number of key=value arguments.' % parts[0])
for x in range(0, len(raw_args), 2):
html_attrs[str(raw_args[x])] = Variable(raw_args[x + 1])
return FormFieldNode(parts[1], html_attrs)
def render(self, context):
try:
if '.' in self.field_var:
base, field_name = self.field_var.rsplit('.', 1)
field = getattr(Variable(base).resolve(context), field_name)
else:
field = context[self.field_var]
except (template.VariableDoesNotExist, KeyError, AttributeError):
return settings.TEMPLATE_STRING_IF_INVALID
h_attrs = {}
for k, v in iteritems(self.html_attrs):
try:
h_attrs[k] = v.resolve(context)
except template.VariableDoesNotExist:
h_attrs[k] = settings.TEMPLATE_STRING_IF_INVALID
return field(**h_attrs)
def do_form_field(parser, token):
"""
Render a WTForms form field allowing optional HTML attributes.
Invocation looks like this:
{% form_field form.username class="big_text" onclick="alert('hello')" %}
where form.username is the path to the field value we want. Any number
of key="value" arguments are supported. Unquoted values are resolved as
template variables.
"""
parts = token.contents.split(' ', 2)
if len(parts) < 2:
error_text = '%r tag must have the form field name as the first value, followed by optional key="value" attributes.'
raise template.TemplateSyntaxError(error_text % parts[0])
html_attrs = {}
if len(parts) == 3:
raw_args = list(args_split(parts[2]))
if (len(raw_args) % 2) != 0:
raise template.TemplateSyntaxError('%r tag received the incorrect number of key=value arguments.' % parts[0])
for x in range(0, len(raw_args), 2):
html_attrs[str(raw_args[x])] = Variable(raw_args[x + 1])
return FormFieldNode(parts[1], html_attrs)
def render(self, context):
try:
template_pack = template.Variable('template_pack').resolve(context)
except:
template_pack = TEMPLATE_PACK
try:
form_attrs = template.Variable('form_attrs').resolve(context)
except:
form_attrs = {}
return selectively_remove_spaces_between_tags(
self.nodelist.render(context).strip(),
template_pack,
form_attrs.get('class', ''),
)
def render(self, context):
try:
if '.' in self.field_var:
base, field_name = self.field_var.rsplit('.', 1)
field = getattr(Variable(base).resolve(context), field_name)
else:
field = context[self.field_var]
except (template.VariableDoesNotExist, KeyError, AttributeError):
return settings.TEMPLATE_STRING_IF_INVALID
h_attrs = {}
for k, v in iteritems(self.html_attrs):
try:
h_attrs[k] = v.resolve(context)
except template.VariableDoesNotExist:
h_attrs[k] = settings.TEMPLATE_STRING_IF_INVALID
return field(**h_attrs)
def do_form_field(parser, token):
"""
Render a WTForms form field allowing optional HTML attributes.
Invocation looks like this:
{% form_field form.username class="big_text" onclick="alert('hello')" %}
where form.username is the path to the field value we want. Any number
of key="value" arguments are supported. Unquoted values are resolved as
template variables.
"""
parts = token.contents.split(' ', 2)
if len(parts) < 2:
error_text = '%r tag must have the form field name as the first value, followed by optional key="value" attributes.'
raise template.TemplateSyntaxError(error_text % parts[0])
html_attrs = {}
if len(parts) == 3:
raw_args = list(args_split(parts[2]))
if (len(raw_args) % 2) != 0:
raise template.TemplateSyntaxError('%r tag received the incorrect number of key=value arguments.' % parts[0])
for x in range(0, len(raw_args), 2):
html_attrs[str(raw_args[x])] = Variable(raw_args[x + 1])
return FormFieldNode(parts[1], html_attrs)
def render(self, context):
try:
if '.' in self.field_var:
base, field_name = self.field_var.rsplit('.', 1)
field = getattr(Variable(base).resolve(context), field_name)
else:
field = context[self.field_var]
except (template.VariableDoesNotExist, KeyError, AttributeError):
return settings.TEMPLATE_STRING_IF_INVALID
h_attrs = {}
for k, v in iteritems(self.html_attrs):
try:
h_attrs[k] = v.resolve(context)
except template.VariableDoesNotExist:
h_attrs[k] = settings.TEMPLATE_STRING_IF_INVALID
return field(**h_attrs)
def do_form_field(parser, token):
"""
Render a WTForms form field allowing optional HTML attributes.
Invocation looks like this:
{% form_field form.username class="big_text" onclick="alert('hello')" %}
where form.username is the path to the field value we want. Any number
of key="value" arguments are supported. Unquoted values are resolved as
template variables.
"""
parts = token.contents.split(' ', 2)
if len(parts) < 2:
error_text = '%r tag must have the form field name as the first value, followed by optional key="value" attributes.'
raise template.TemplateSyntaxError(error_text % parts[0])
html_attrs = {}
if len(parts) == 3:
raw_args = list(args_split(parts[2]))
if (len(raw_args) % 2) != 0:
raise template.TemplateSyntaxError('%r tag received the incorrect number of key=value arguments.' % parts[0])
for x in range(0, len(raw_args), 2):
html_attrs[str(raw_args[x])] = Variable(raw_args[x + 1])
return FormFieldNode(parts[1], html_attrs)
def parse(cls, parser, token):
tokens = token.split_contents()
tokens.pop(0) # Pop the tag name.
def make_variable(name):
return template.Variable(name)
def not_using(bit):
return bit != "using"
template_name_variables = map(make_variable, filter(
not_using,
takewhile(not_using, tokens)))
hint_provider_variables = map(make_variable, filter(
not_using,
dropwhile(not_using, tokens)))
return cls(template_name_variables, hint_provider_variables)
def handle_var(value, context):
"""
Handle template tag variable
"""
# Resolve FilterExpression and Variable immediately
if isinstance(value, FilterExpression) or isinstance(value, Variable):
return value.resolve(context)
# Return quoted strings unquoted
# http://djangosnippets.org/snippets/886
stringval = QUOTED_STRING.search(value)
if stringval:
return stringval.group('noquotes')
# Resolve variable or return string value
try:
return Variable(value).resolve(context)
except VariableDoesNotExist:
return value
def handle_var(value, context):
"""
Handle template tag variable
"""
# Resolve FilterExpression and Variable immediately
if isinstance(value, FilterExpression) or isinstance(value, Variable):
return value.resolve(context)
# Return quoted strings unquoted
# http://djangosnippets.org/snippets/886
stringval = QUOTED_STRING.search(value)
if stringval:
return stringval.group('noquotes')
# Resolve variable or return string value
try:
return Variable(value).resolve(context)
except VariableDoesNotExist:
return value
def handle_var(value, context):
"""
Handle template tag variable
"""
# Resolve FilterExpression and Variable immediately
if isinstance(value, FilterExpression) or isinstance(value, Variable):
return value.resolve(context)
# Return quoted strings unquoted
# http://djangosnippets.org/snippets/886
stringval = QUOTED_STRING.search(value)
if stringval:
return stringval.group('noquotes')
# Resolve variable or return string value
try:
return Variable(value).resolve(context)
except VariableDoesNotExist:
return value
def handle_var(value, context):
"""
Handle template tag variable
"""
# Resolve FilterExpression and Variable immediately
if isinstance(value, FilterExpression) or isinstance(value, Variable):
return value.resolve(context)
# Return quoted strings unquoted
# http://djangosnippets.org/snippets/886
stringval = QUOTED_STRING.search(value)
if stringval:
return stringval.group('noquotes')
# Resolve variable or return string value
try:
return Variable(value).resolve(context)
except VariableDoesNotExist:
return value
def handle_var(value, context):
"""
Handle template tag variable
"""
# Resolve FilterExpression and Variable immediately
if isinstance(value, FilterExpression) or isinstance(value, Variable):
return value.resolve(context)
# Return quoted strings unquoted
# http://djangosnippets.org/snippets/886
stringval = QUOTED_STRING.search(value)
if stringval:
return stringval.group('noquotes')
# Resolve variable or return string value
try:
return Variable(value).resolve(context)
except VariableDoesNotExist:
return value
def render(self, context):
try:
if '.' in self.field_var:
base, field_name = self.field_var.rsplit('.', 1)
field = getattr(Variable(base).resolve(context), field_name)
else:
field = context[self.field_var]
except (template.VariableDoesNotExist, KeyError, AttributeError):
return settings.TEMPLATE_STRING_IF_INVALID
h_attrs = {}
for k, v in iteritems(self.html_attrs):
try:
h_attrs[k] = v.resolve(context)
except template.VariableDoesNotExist:
h_attrs[k] = settings.TEMPLATE_STRING_IF_INVALID
return field(**h_attrs)
