cdf

class Textarea

from django.forms import Textarea
Documentation Source code

Ancestors (MRO)

  1. Textarea
  2. Widget

Attributes

  Defined in
is_localized = False Widget
is_required = False Widget
needs_multipart_form = False Widget
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Properties

def is_hidden(): Widget

Getter

    @property
    def is_hidden(self):
        return self.input_type == 'hidden' if hasattr(self, 'input_type') else False

def media(): Textarea

Getter

    def _media(self):
        # Get the media property of the superclass, if it exists
        sup_cls = super(cls, self)
        try:
            base = sup_cls.media
        except AttributeError:
            base = Media()

        # Get the media definition for this class
        definition = getattr(cls, 'Media', None)
        if definition:
            extend = getattr(definition, 'extend', True)
            if extend:
                if extend is True:
                    m = base
                else:
                    m = Media()
                    for medium in extend:
                        m = m + base[medium]
                return m + Media(definition)
            else:
                return Media(definition)
        else:
            return base

def media(): Widget

Getter

    def _media(self):
        # Get the media property of the superclass, if it exists
        sup_cls = super(cls, self)
        try:
            base = sup_cls.media
        except AttributeError:
            base = Media()

        # Get the media definition for this class
        definition = getattr(cls, 'Media', None)
        if definition:
            extend = getattr(definition, 'extend', True)
            if extend:
                if extend is True:
                    m = base
                else:
                    m = Media()
                    for medium in extend:
                        m = m + base[medium]
                return m + Media(definition)
            else:
                return Media(definition)
        else:
            return base
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Methods

def build_attrs(self, extra_attrs=None, **kwargs): Widget 

Helper function for building an attribute dictionary.
    def build_attrs(self, extra_attrs=None, **kwargs):
        "Helper function for building an attribute dictionary."
        attrs = dict(self.attrs, **kwargs)
        if extra_attrs:
            attrs.update(extra_attrs)
        return attrs

def id_for_label(self, id_): Widget 

        Returns the HTML ID attribute of this Widget for use by a <label>,
        given the ID of the field. Returns None if no ID is available.

        This hook is necessary because some widgets have multiple HTML
        elements and, thus, multiple IDs. In that case, this method should
        return an ID value that corresponds to the first ID in the widget's
        tags.
        
    def id_for_label(self, id_):
        """
        Returns the HTML ID attribute of this Widget for use by a <label>,
        given the ID of the field. Returns None if no ID is available.

        This hook is necessary because some widgets have multiple HTML
        elements and, thus, multiple IDs. In that case, this method should
        return an ID value that corresponds to the first ID in the widget's
        tags.
        """
        return id_

def render(self, name, value, attrs=None):

Textarea

    def render(self, name, value, attrs=None):
        if value is None:
            value = ''
        final_attrs = self.build_attrs(attrs, name=name)
        return format_html('<textarea{}>\r\n{}</textarea>',
                           flatatt(final_attrs),
                           force_text(value))

Widget

        Returns this Widget rendered as HTML, as a Unicode string.

        The 'value' given is not guaranteed to be valid input, so subclass
        implementations should program defensively.
        
    def render(self, name, value, attrs=None):
        """
        Returns this Widget rendered as HTML, as a Unicode string.

        The 'value' given is not guaranteed to be valid input, so subclass
        implementations should program defensively.
        """
        raise NotImplementedError('subclasses of Widget must provide a render() method')

def subwidgets(self, name, value, attrs=None, choices=()): Widget 

        Yields all "subwidgets" of this widget. Used only by RadioSelect to
        allow template access to individual <input type="radio"> buttons.

        Arguments are the same as for render().
        
    def subwidgets(self, name, value, attrs=None, choices=()):
        """
        Yields all "subwidgets" of this widget. Used only by RadioSelect to
        allow template access to individual <input type="radio"> buttons.

        Arguments are the same as for render().
        """
        yield SubWidget(self, name, value, attrs, choices)

def value_from_datadict(self, data, files, name): Widget 

        Given a dictionary of data and this widget's name, returns the value
        of this widget. Returns None if it's not provided.
        
    def value_from_datadict(self, data, files, name):
        """
        Given a dictionary of data and this widget's name, returns the value
        of this widget. Returns None if it's not provided.
        """
        return data.get(name, None)