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<pre><span class="ruby-comment cmt"># File lib/active_record/validations.rb, line 626</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">validates_length_of</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">attrs</span>)
<span class="ruby-comment cmt"># Merge given options with defaults.</span>
<span class="ruby-identifier">options</span> = {
<span class="ruby-identifier">:tokenizer</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">lambda</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">value</span><span class="ruby-operator">|</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">split</span>(<span class="ruby-regexp re">//</span>)}
}.<span class="ruby-identifier">merge</span>(<span class="ruby-constant">DEFAULT_VALIDATION_OPTIONS</span>)
<span class="ruby-identifier">options</span>.<span class="ruby-identifier">update</span>(<span class="ruby-identifier">attrs</span>.<span class="ruby-identifier">extract_options!</span>.<span class="ruby-identifier">symbolize_keys</span>)
<span class="ruby-comment cmt"># Ensure that one and only one range option is specified.</span>
<span class="ruby-identifier">range_options</span> = <span class="ruby-constant">ALL_RANGE_OPTIONS</span> <span class="ruby-operator">&</span> <span class="ruby-identifier">options</span>.<span class="ruby-identifier">keys</span>
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">range_options</span>.<span class="ruby-identifier">size</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-value">0</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-value str">'Range unspecified. Specify the :within, :maximum, :minimum, or :is option.'</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-value">1</span>
<span class="ruby-comment cmt"># Valid number of options; do nothing.</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-value str">'Too many range options specified. Choose only one.'</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-comment cmt"># Get range option and value.</span>
<span class="ruby-identifier">option</span> = <span class="ruby-identifier">range_options</span>.<span class="ruby-identifier">first</span>
<span class="ruby-identifier">option_value</span> = <span class="ruby-identifier">options</span>[<span class="ruby-identifier">range_options</span>.<span class="ruby-identifier">first</span>]
<span class="ruby-identifier">key</span> = {<span class="ruby-identifier">:is</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">:wrong_length</span>, <span class="ruby-identifier">:minimum</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">:too_short</span>, <span class="ruby-identifier">:maximum</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">:too_long</span>}[<span class="ruby-identifier">option</span>]
<span class="ruby-identifier">custom_message</span> = <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:message</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">key</span>]
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">option</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:within</span>, <span class="ruby-identifier">:in</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-node">":#{option} must be a Range"</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">option_value</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Range</span>)
<span class="ruby-identifier">validates_each</span>(<span class="ruby-identifier">attrs</span>, <span class="ruby-identifier">options</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">record</span>, <span class="ruby-identifier">attr</span>, <span class="ruby-identifier">value</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">value</span> = <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:tokenizer</span>].<span class="ruby-identifier">call</span>(<span class="ruby-identifier">value</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">kind_of?</span>(<span class="ruby-constant">String</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-keyword kw">or</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator"><</span> <span class="ruby-identifier">option_value</span>.<span class="ruby-identifier">begin</span>
<span class="ruby-identifier">record</span>.<span class="ruby-identifier">errors</span>.<span class="ruby-identifier">add</span>(<span class="ruby-identifier">attr</span>, <span class="ruby-identifier">:too_short</span>, <span class="ruby-identifier">:default</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">custom_message</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:too_short</span>], <span class="ruby-identifier">:count</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">option_value</span>.<span class="ruby-identifier">begin</span>)
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">></span> <span class="ruby-identifier">option_value</span>.<span class="ruby-identifier">end</span>
<span class="ruby-identifier">record</span>.<span class="ruby-identifier">errors</span>.<span class="ruby-identifier">add</span>(<span class="ruby-identifier">attr</span>, <span class="ruby-identifier">:too_long</span>, <span class="ruby-identifier">:default</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">custom_message</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:too_long</span>], <span class="ruby-identifier">:count</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">option_value</span>.<span class="ruby-identifier">end</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:is</span>, <span class="ruby-identifier">:minimum</span>, <span class="ruby-identifier">:maximum</span>
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-node">":#{option} must be a nonnegative Integer"</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">option_value</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Integer</span>) <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">option_value</span> <span class="ruby-operator">>=</span> <span class="ruby-value">0</span>
<span class="ruby-comment cmt"># Declare different validations per option.</span>
<span class="ruby-identifier">validity_checks</span> = { <span class="ruby-identifier">:is</span> =<span class="ruby-operator">></span> <span class="ruby-value str">"=="</span>, <span class="ruby-identifier">:minimum</span> =<span class="ruby-operator">></span> <span class="ruby-value str">">="</span>, <span class="ruby-identifier">:maximum</span> =<span class="ruby-operator">></span> <span class="ruby-value str">"<="</span> }
<span class="ruby-identifier">validates_each</span>(<span class="ruby-identifier">attrs</span>, <span class="ruby-identifier">options</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">record</span>, <span class="ruby-identifier">attr</span>, <span class="ruby-identifier">value</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">value</span> = <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:tokenizer</span>].<span class="ruby-identifier">call</span>(<span class="ruby-identifier">value</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">kind_of?</span>(<span class="ruby-constant">String</span>)
<span class="ruby-keyword kw">unless</span> <span class="ruby-operator">!</span><span class="ruby-identifier">value</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">size</span>.<span class="ruby-identifier">method</span>(<span class="ruby-identifier">validity_checks</span>[<span class="ruby-identifier">option</span>])[<span class="ruby-identifier">option_value</span>]
<span class="ruby-identifier">record</span>.<span class="ruby-identifier">errors</span>.<span class="ruby-identifier">add</span>(<span class="ruby-identifier">attr</span>, <span class="ruby-identifier">key</span>, <span class="ruby-identifier">:default</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">custom_message</span>, <span class="ruby-identifier">:count</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">option_value</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span></pre>
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distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
d51872cc0e1fdee944d71993f94ac764
>
files
>
789
