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<title>find (Metacat)</title>
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<pre><span class="ruby-comment cmt"># File lib/metacat.rb, line 113</span>
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<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">find</span>(<span class="ruby-identifier">args</span>)
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<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">args</span>[<span class="ruby-identifier">:docid</span>] <span class="ruby-operator">&&</span> <span class="ruby-identifier">args</span>[<span class="ruby-identifier">:squery</span>]
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<span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-value str">"Too many parameters. Choose :docid or :squery"</span>
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<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">args</span>[<span class="ruby-identifier">:docid</span>]
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<span class="ruby-identifier">result</span> = <span class="ruby-identifier">read</span>(<span class="ruby-identifier">args</span>[<span class="ruby-identifier">:docid</span>], <span class="ruby-value str">'only_eml'</span> =<span class="ruby-operator">></span> <span class="ruby-keyword kw">true</span>)
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<span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">result</span>.<span class="ruby-identifier">nil?</span>
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<span class="ruby-identifier">try_eml</span>(<span class="ruby-identifier">result</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">raise</span>(<span class="ruby-constant">ArgumentError</span>, <span class="ruby-node">"#{args[:docid]} does not refer to eml metadata. To read other documents use read."</span>)
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<span class="ruby-keyword kw">end</span>
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<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">args</span>[<span class="ruby-identifier">:squery</span>]
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<span class="ruby-identifier">results</span> = <span class="ruby-identifier">squery</span>(<span class="ruby-identifier">args</span>[<span class="ruby-identifier">:squery</span>])
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<span class="ruby-identifier">doc</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">results</span>)
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<span class="ruby-identifier">documents</span> = <span class="ruby-constant">Array</span>.<span class="ruby-identifier">new</span>()
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<span class="ruby-identifier">doc</span>.<span class="ruby-identifier">elements</span>.<span class="ruby-identifier">each</span>(<span class="ruby-value str">"/resultset/document"</span>) { <span class="ruby-operator">|</span><span class="ruby-identifier">document</span><span class="ruby-operator">|</span>
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<span class="ruby-identifier">docid</span> = <span class="ruby-identifier">document</span>.<span class="ruby-identifier">elements</span>[<span class="ruby-value">1</span>].<span class="ruby-identifier">text</span>
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<span class="ruby-identifier">documents</span>.<span class="ruby-identifier">push</span>(<span class="ruby-identifier">try_eml</span>(<span class="ruby-identifier">read</span>(<span class="ruby-identifier">docid</span>, <span class="ruby-value str">'only_eml'</span> =<span class="ruby-operator">></span> <span class="ruby-keyword kw">true</span>)))
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}
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<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">documents</span>.<span class="ruby-identifier">delete_if</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">doc</span><span class="ruby-operator">|</span> <span class="ruby-identifier">doc</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">false</span> }
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<span class="ruby-keyword kw">end</span>
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<span class="ruby-keyword kw">end</span></pre>
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