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metacat/src/ruby/doc/classes/Metacat.src/M000072.html @ 6859

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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">&amp;&amp;</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">&quot;Too many parameters. Choose :docid or :squery&quot;</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">&gt;</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">&quot;#{args[:docid]} does not refer to eml metadata. To read other documents use read.&quot;</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">&quot;/resultset/document&quot;</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">&gt;</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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