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Package web2py ::
<a href="web2py.gluon-module.html">Package gluon</a> ::
<a href="web2py.gluon.validators-module.html">Module validators</a> ::
Class IS_LENGTH
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class IS_LENGTH</h1><span class="codelink"><a href="web2py.gluon.validators-pysrc.html#IS_LENGTH">source code</a></span><br /><br />
<pre class="base-tree">
object --+
|
<a href="web2py.gluon.validators.Validator-class.html">Validator</a> --+
|
<strong class="uidshort">IS_LENGTH</strong>
</pre>
<hr />
<p>Checks if length of field's value fits between given boundaries. Works
for both text and file inputs.</p>
<p>Arguments:</p>
<p>maxsize: maximum allowed length / size minsize: minimum allowed length
/ size</p>
Examples:
<pre class="literalblock">
#Check if text string is shorter than 33 characters:
INPUT(_type='text', _name='name', requires=IS_LENGTH(32))
#Check if password string is longer than 5 characters:
INPUT(_type='password', _name='name', requires=IS_LENGTH(minsize=6))
#Check if uploaded file has size between 1KB and 1MB:
INPUT(_type='file', _name='name', requires=IS_LENGTH(1048576, 1024))
>>> IS_LENGTH()('')
('', None)
>>> IS_LENGTH()('1234567890')
('1234567890', None)
>>> IS_LENGTH(maxsize=5, minsize=0)('1234567890') # too long
('1234567890', 'enter from 0 to 5 characters')
>>> IS_LENGTH(maxsize=50, minsize=20)('1234567890') # too short
('1234567890', 'enter from 20 to 50 characters')
</pre><br /><br />
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<td><span class="summary-sig"><a href="web2py.gluon.validators.IS_LENGTH-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">maxsize</span>=<span class="summary-sig-default">255</span>,
<span class="summary-sig-arg">minsize</span>=<span class="summary-sig-default">0</span>,
<span class="summary-sig-arg">error_message</span>=<span class="summary-sig-default"><code class="variable-quote">'</code><code class="variable-string">enter from %(min)g to %(max)g characters</code><code class="variable-quote">'</code></span>)</span><br />
x.__init__(...) initializes x; see x.__class__.__doc__ for
signature</td>
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<span class="codelink"><a href="web2py.gluon.validators-pysrc.html#IS_LENGTH.__init__">source code</a></span>
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<span class="summary-sig-arg">value</span>)</span></td>
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<span class="codelink"><a href="web2py.gluon.validators-pysrc.html#IS_LENGTH.__call__">source code</a></span>
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<p class="indent-wrapped-lines"><b>Inherited from <code><a href="web2py.gluon.validators.Validator-class.html">Validator</a></code></b>:
<code><a href="web2py.gluon.validators.Validator-class.html#formatter">formatter</a></code>
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<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__delattr__</code>,
<code>__getattribute__</code>,
<code>__hash__</code>,
<code>__new__</code>,
<code>__reduce__</code>,
<code>__reduce_ex__</code>,
<code>__repr__</code>,
<code>__setattr__</code>,
<code>__str__</code>
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<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__class__</code>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">maxsize</span>=<span class="sig-default">255</span>,
<span class="sig-arg">minsize</span>=<span class="sig-default">0</span>,
<span class="sig-arg">error_message</span>=<span class="sig-default"><code class="variable-quote">'</code><code class="variable-string">enter from %(min)g to %(max)g characters</code><code class="variable-quote">'</code></span>)</span>
<br /><em class="fname">(Constructor)</em>
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</td><td align="right" valign="top"
><span class="codelink"><a href="web2py.gluon.validators-pysrc.html#IS_LENGTH.__init__">source code</a></span>
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x.__init__(...) initializes x; see x.__class__.__doc__ for
signature
<dl class="fields">
<dt>Overrides:
object.__init__
<dd><em class="note">(inherited documentation)</em></dd>
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