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<title>filter_on (Deltacloud::BaseDriver)</title>
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<pre><span class="ruby-comment cmt"># File lib/deltacloud/base_driver/base_driver.rb, line 206</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">filter_on</span>(<span class="ruby-identifier">collection</span>, <span class="ruby-identifier">attribute</span>, <span class="ruby-identifier">opts</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">collection</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">opts</span>.<span class="ruby-identifier">nil?</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">collection</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">opts</span>[<span class="ruby-identifier">attribute</span>].<span class="ruby-identifier">nil?</span>
<span class="ruby-identifier">filter</span> = <span class="ruby-identifier">opts</span>[<span class="ruby-identifier">attribute</span>]
<span class="ruby-keyword kw">if</span> ( <span class="ruby-identifier">filter</span>.<span class="ruby-identifier">is_a?</span>( <span class="ruby-constant">Array</span> ) )
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">collection</span>.<span class="ruby-identifier">select</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">e</span><span class="ruby-operator">|</span> <span class="ruby-identifier">filter</span>.<span class="ruby-identifier">include?</span>( <span class="ruby-identifier">e</span>.<span class="ruby-identifier">send</span>(<span class="ruby-identifier">attribute</span>) ) }
<span class="ruby-keyword kw">else</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">collection</span>.<span class="ruby-identifier">select</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">e</span><span class="ruby-operator">|</span> <span class="ruby-identifier">filter</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">e</span>.<span class="ruby-identifier">send</span>(<span class="ruby-identifier">attribute</span>) }
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span></pre>
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