Python HTML.form方法代碼示例

# 需要導入模塊: from webhelpers2.html import HTML [as 別名]
# 或者: from webhelpers2.html.HTML import form [as 別名]
def test_unclosed_tag():
    result = HTML.form(_closed=False)
    print result
    eq_(u'<form>', result)
    
    result = HTML.form(_closed=False, action="hello")
    eq_(u'<form action="hello">', result)

# 需要導入模塊: from webhelpers2.html import HTML [as 別名]
# 或者: from webhelpers2.html.HTML import form [as 別名]
def button_to(name, url='', **html_attrs):
    """Generate a form containing a sole button that submits to
    ``url``. 
    
    Use this method instead of ``link_to`` for actions that do not have
    the safe HTTP GET semantics implied by using a hypertext link.
    
    The parameters are the same as for ``link_to``.  Any 
    ``html_attrs`` that you pass will be applied to the inner
    ``input`` element. In particular, pass
    
        disabled = True/False
    
    as part of ``html_attrs`` to control whether the button is
    disabled.  The generated form element is given the class
    'button-to', to which you can attach CSS styles for display
    purposes.
    
    The submit button itself will be displayed as an image if you 
    provide both ``type`` and ``src`` as followed:

         type='image', src='icon_delete.gif'

    The ``src`` path should be the exact URL desired.  A previous version of
    this helper added magical prefixes but this is no longer the case.

    Example 1::
    
        # inside of controller for "feeds"
        >> button_to("Edit", url(action='edit', id=3))
        <form method="post" action="/feeds/edit/3" class="button-to">
        <div><input value="Edit" type="submit" /></div>
        </form>
    
    Example 2::
    
        >> button_to("Destroy", url(action='destroy', id=3), 
        .. method='DELETE')
        <form method="POST" action="/feeds/destroy/3" 
         class="button-to">
        <div>
            <input type="hidden" name="_method" value="DELETE" />
            <input value="Destroy" type="submit" />
        </div>
        </form>

    Example 3::

        # Button as an image.
        >> button_to("Edit", url(action='edit', id=3), type='image', 
        .. src='icon_delete.gif')
        <form method="POST" action="/feeds/edit/3" class="button-to">
        <div><input alt="Edit" src="/images/icon_delete.gif"
         type="image" value="Edit" /></div>
        </form>
    
    .. note::
        This method generates HTML code that represents a form. Forms
        are "block" content, which means that you should not try to
        insert them into your HTML where only inline content is
        expected. For example, you can legally insert a form inside of
        a ``div`` or ``td`` element or in between ``p`` elements, but
        not in the middle of a run of text, nor can you place a form
        within another form.
        (Bottom line: Always validate your HTML before going public.)

    Changed in WebHelpers 1.2: Preserve case of "method" arg for XHTML
    compatibility. E.g., "POST" or "PUT" causes *method="POST"*; "post" or
    "put" causes *method="post"*.
    
    """
    if html_attrs:
        tags.convert_boolean_attrs(html_attrs, ['disabled'])
    
    method_tag = ''
    method = html_attrs.pop('method', '')
    if method.upper() in ['PUT', 'DELETE']:
        method_tag = HTML.input(
            type='hidden', id='_method', name_='_method', value=method)
  
    if method.upper() in ('GET', 'POST'):
        form_method = method
    elif method in ('put', 'delete'):
        # preserve lowercasing of verb
        form_method = 'post'
    else:
        form_method = 'POST'
    
    url, name = url, name or url
    
    submit_type = html_attrs.get('type')
    img_source = html_attrs.get('src')
    if submit_type == 'image' and img_source:
        html_attrs["value"] = name
        html_attrs.setdefault("alt", name)
    else:
        html_attrs["type"] = "submit"
        html_attrs["value"] = name
    
    return HTML.form(method=form_method, action=url, class_="button-to",
#.........這裏部分代碼省略.........

# 需要導入模塊: from webhelpers2.html import HTML [as 別名]
# 或者: from webhelpers2.html.HTML import form [as 別名]
 def test_unclosed_tag(self):
     result = HTML.form(_closed=False)
     assert "<form>" == result
     
     result = HTML.form(_closed=False, action="hello")
     assert '<form action="hello">' == result

# 需要導入模塊: from webhelpers2.html import HTML [as 別名]
# 或者: from webhelpers2.html.HTML import form [as 別名]
def form(url, method="post", multipart=False, hidden_fields=None, **attrs):
    """An open tag for a form that will submit to ``url``.

    You must close the form yourself by calling ``end_form()`` or outputting
    </form>.
    
    Options:

    ``method``
        The method to use when submitting the form, usually either 
        "GET" or "POST". If "PUT", "DELETE", or another verb is used, a
        hidden input with name _method is added to simulate the verb
        over POST.
    
    ``multipart``
        If set to True, the enctype is set to "multipart/form-data".
        You must set it to true when uploading files, or the browser will
        submit the filename rather than the file.

    ``hidden_fields``
        Additional hidden fields to add to the beginning of the form.  It may
        be a dict or an iterable of key-value tuples. This is implemented by
        calling the object's ``.items()`` method if it has one, or just
        iterating the object.  (This will successfuly get multiple values for
        the same key in WebOb MultiDict objects.)

    Because input tags must be placed in a block tag rather than directly
    inside the form, all hidden fields will be put in a 
    '<div style="display:none">'.  The style prevents the <div> from being
    displayed or affecting the layout.

    Examples:

    >>> form("/submit")
    literal(u'<form action="/submit" method="post">')
    >>> form("/submit", method="get")
    literal(u'<form action="/submit" method="get">')
    >>> form("/submit", method="put")
    literal(u'<form action="/submit" method="post"><div style="display:none">\\n<input name="_method" type="hidden" value="put" />\\n</div>\\n')
    >>> form("/submit", "post", multipart=True) 
    literal(u'<form action="/submit" enctype="multipart/form-data" method="post">')

    Changed in WebHelpers 1.0b2: add <div> and ``hidden_fields`` arg.

    Changed in WebHelpers 1.2: don't add an "id" attribute to hidden tags
    generated by this helper; they clash if there are multiple forms on the
    page.
    """
    fields = []
    attrs["action"] = url
    if multipart:
        attrs["enctype"] = "multipart/form-data"
    if method.lower() in ['post', 'get']:
        attrs['method'] = method
    else:
        attrs['method'] = "post"
        field = hidden("_method", method, id=None)
        fields.append(field)
    if hidden_fields is not None:
        try:
            it = hidden_fields.items()
        except AttributeError:
            it = hidden_fields
        for name, value in it:
            field = hidden(name, value, id=None)
            fields.append(field)
    if fields:
        div = HTML.div(style="display:none", _nl=True, *fields)
    else:
        div = None
    return HTML.form(div, _closed=False, **attrs)

# 需要導入模塊: from webhelpers2.html import HTML [as 別名]
# 或者: from webhelpers2.html.HTML import form [as 別名]
 def header_form_otag(self, **kwargs):
     return _HTML.form(_closed=False, method='get', action=self.form_action_url(), **kwargs)