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<title>class Rack::Multipart::Generator - rack-2.2.8 Documentation</title>

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  <h3>Parent</h3>

  
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  <h3>Methods</h3>

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    <li ><a href="#method-c-new">::new</a>
    
    <li ><a href="#method-i-content_for_other">#content_for_other</a>
    
    <li ><a href="#method-i-content_for_tempfile">#content_for_tempfile</a>
    
    <li ><a href="#method-i-dump">#dump</a>
    
    <li ><a href="#method-i-flattened_params">#flattened_params</a>
    
    <li ><a href="#method-i-multipart-3F">#multipart?</a>
    
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<main role="main" aria-labelledby="class-Rack::Multipart::Generator">
  <h1 id="class-Rack::Multipart::Generator" class="class">
    class Rack::Multipart::Generator
  </h1>

  <section class="description">
    
  </section>

  
  <section id="5Buntitled-5D" class="documentation-section">
    

    

    

    

    
     <section id="public-class-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Public Class Methods</h3>
       </header>

    
      <div id="method-c-new" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">new</span><span
            class="method-args">(params, first = true)</span>
          
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          <div class="method-source-code" id="new-source">
            <pre><span class="ruby-comment"># File lib/rack/multipart/generator.rb, line 6</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">params</span>, <span class="ruby-identifier">first</span> = <span class="ruby-keyword">true</span>)
  <span class="ruby-ivar">@params</span>, <span class="ruby-ivar">@first</span> = <span class="ruby-identifier">params</span>, <span class="ruby-identifier">first</span>

  <span class="ruby-keyword">if</span> <span class="ruby-ivar">@first</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@params</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>)
    <span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-string">&quot;value must be a Hash&quot;</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
          </div>
          
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      </div>

    
    </section>
  
     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Public Instance Methods</h3>
       </header>

    
      <div id="method-i-dump" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">dump</span><span
            class="method-args">()</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
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          <div class="method-source-code" id="dump-source">
            <pre><span class="ruby-comment"># File lib/rack/multipart/generator.rb, line 14</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">dump</span>
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@first</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span><span class="ruby-identifier">multipart?</span>
  <span class="ruby-keyword">return</span> <span class="ruby-identifier">flattened_params</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@first</span>

  <span class="ruby-identifier">flattened_params</span>.<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">name</span>, <span class="ruby-identifier">file</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">file</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value">:original_filename</span>)
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">file</span>.<span class="ruby-identifier">path</span>
        <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>(<span class="ruby-identifier">file</span>.<span class="ruby-identifier">path</span>, <span class="ruby-string">&#39;rb&#39;</span>) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span>
          <span class="ruby-identifier">f</span>.<span class="ruby-identifier">set_encoding</span>(<span class="ruby-constant">Encoding</span><span class="ruby-operator">::</span><span class="ruby-constant">BINARY</span>)
          <span class="ruby-identifier">content_for_tempfile</span>(<span class="ruby-identifier">f</span>, <span class="ruby-identifier">file</span>, <span class="ruby-identifier">name</span>)
        <span class="ruby-keyword">end</span>
      <span class="ruby-keyword">else</span>
        <span class="ruby-identifier">content_for_tempfile</span>(<span class="ruby-identifier">file</span>, <span class="ruby-identifier">file</span>, <span class="ruby-identifier">name</span>)
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">content_for_other</span>(<span class="ruby-identifier">file</span>, <span class="ruby-identifier">name</span>)
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>.<span class="ruby-identifier">join</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;--#{MULTIPART_BOUNDARY}--\r&quot;</span>
<span class="ruby-keyword">end</span></pre>
          </div>
          
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      </div>

    
    </section>
  
     <section id="private-instance-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Private Instance Methods</h3>
       </header>

    
      <div id="method-i-content_for_other" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">content_for_other</span><span
            class="method-args">(file, name)</span>
          
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          <div class="method-source-code" id="content_for_other-source">
            <pre><span class="ruby-comment"># File lib/rack/multipart/generator.rb, line 87</span>
      <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">content_for_other</span>(<span class="ruby-identifier">file</span>, <span class="ruby-identifier">name</span>)
<span class="ruby-identifier">&lt;&lt;-EOF</span>
<span class="ruby-value">--#{MULTIPART_BOUNDARY}\r
Content-Disposition: form-data; name=&quot;#{name}&quot;\r
\r
#{file}\r
</span><span class="ruby-identifier">EOF</span>
      <span class="ruby-keyword">end</span></pre>
          </div>
          
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      <div id="method-i-content_for_tempfile" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">content_for_tempfile</span><span
            class="method-args">(io, file, name)</span>
          
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          <div class="method-source-code" id="content_for_tempfile-source">
            <pre><span class="ruby-comment"># File lib/rack/multipart/generator.rb, line 75</span>
      <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">content_for_tempfile</span>(<span class="ruby-identifier">io</span>, <span class="ruby-identifier">file</span>, <span class="ruby-identifier">name</span>)
        <span class="ruby-identifier">length</span> = <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">stat</span>(<span class="ruby-identifier">file</span>.<span class="ruby-identifier">path</span>).<span class="ruby-identifier">size</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">file</span>.<span class="ruby-identifier">path</span>
        <span class="ruby-identifier">filename</span> = <span class="ruby-node">&quot;; filename=\&quot;#{Utils.escape(file.original_filename)}\&quot;&quot;</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">file</span>.<span class="ruby-identifier">original_filename</span>
<span class="ruby-identifier">&lt;&lt;-EOF</span>
<span class="ruby-value">--#{MULTIPART_BOUNDARY}\r
Content-Disposition: form-data; name=&quot;#{name}&quot;#{filename}\r
Content-Type: #{file.content_type}\r
#{&quot;Content-Length: #{length}\r\n&quot; if length}\r
#{io.read}\r
</span><span class="ruby-identifier">EOF</span>
      <span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

        

        
      </div>

    
      <div id="method-i-flattened_params" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">flattened_params</span><span
            class="method-args">()</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>
        

        <div class="method-description">
          
          
          
          

          
          <div class="method-source-code" id="flattened_params-source">
            <pre><span class="ruby-comment"># File lib/rack/multipart/generator.rb, line 50</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">flattened_params</span>
  <span class="ruby-ivar">@flattened_params</span> <span class="ruby-operator">||=</span> <span class="ruby-keyword">begin</span>
    <span class="ruby-identifier">h</span> = <span class="ruby-constant">Hash</span>.<span class="ruby-identifier">new</span>
    <span class="ruby-ivar">@params</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">key</span>, <span class="ruby-identifier">value</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">k</span> = <span class="ruby-ivar">@first</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">key</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">:</span> <span class="ruby-node">&quot;[#{key}]&quot;</span>

      <span class="ruby-keyword">case</span> <span class="ruby-identifier">value</span>
      <span class="ruby-keyword">when</span> <span class="ruby-constant">Array</span>
        <span class="ruby-identifier">value</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span>
          <span class="ruby-constant">Multipart</span>.<span class="ruby-identifier">build_multipart</span>(<span class="ruby-identifier">v</span>, <span class="ruby-keyword">false</span>).<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">subkey</span>, <span class="ruby-identifier">subvalue</span><span class="ruby-operator">|</span>
            <span class="ruby-identifier">h</span>[<span class="ruby-node">&quot;#{k}[]#{subkey}&quot;</span>] = <span class="ruby-identifier">subvalue</span>
          }
        }
      <span class="ruby-keyword">when</span> <span class="ruby-constant">Hash</span>
        <span class="ruby-constant">Multipart</span>.<span class="ruby-identifier">build_multipart</span>(<span class="ruby-identifier">value</span>, <span class="ruby-keyword">false</span>).<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">subkey</span>, <span class="ruby-identifier">subvalue</span><span class="ruby-operator">|</span>
          <span class="ruby-identifier">h</span>[<span class="ruby-identifier">k</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">subkey</span>] = <span class="ruby-identifier">subvalue</span>
        }
      <span class="ruby-keyword">else</span>
        <span class="ruby-identifier">h</span>[<span class="ruby-identifier">k</span>] = <span class="ruby-identifier">value</span>
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">h</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

        

        
      </div>

    
      <div id="method-i-multipart-3F" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">multipart?</span><span
            class="method-args">()</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>
        

        <div class="method-description">
          
          
          
          

          
          <div class="method-source-code" id="multipart-3F-source">
            <pre><span class="ruby-comment"># File lib/rack/multipart/generator.rb, line 35</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">multipart?</span>
  <span class="ruby-identifier">query</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-keyword">case</span> <span class="ruby-identifier">value</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">Array</span>
      <span class="ruby-identifier">value</span>.<span class="ruby-identifier">any?</span>(<span class="ruby-operator">&amp;</span><span class="ruby-identifier">query</span>)
    <span class="ruby-keyword">when</span> <span class="ruby-constant">Hash</span>
      <span class="ruby-identifier">value</span>.<span class="ruby-identifier">values</span>.<span class="ruby-identifier">any?</span>(<span class="ruby-operator">&amp;</span><span class="ruby-identifier">query</span>)
    <span class="ruby-keyword">when</span> <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">Multipart</span><span class="ruby-operator">::</span><span class="ruby-constant">UploadedFile</span>
      <span class="ruby-keyword">true</span>
    <span class="ruby-keyword">end</span>
  }

  <span class="ruby-ivar">@params</span>.<span class="ruby-identifier">values</span>.<span class="ruby-identifier">any?</span>(<span class="ruby-operator">&amp;</span><span class="ruby-identifier">query</span>)
<span class="ruby-keyword">end</span></pre>
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