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<title>class Rack::Session::Abstract::ID - rack-2.2.23 Documentation</title>

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  <h3>Parent</h3>

<p class="link"><a href="Persisted.html">Rack::Session::Abstract::Persisted</a>
  
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  <h1 id="class-Rack::Session::Abstract::ID" class="class">
    class Rack::Session::Abstract::ID
  </h1>

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

<div id="method-c-inherited" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">inherited</span><span
            class="method-args">(klass)</span>
          
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<div class="method-description">
          
          
          
          
            <div class="method-calls-super">
              Calls superclass method
              
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<div class="method-source-code" id="inherited-source">
            <pre><span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 488</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier ruby-title">inherited</span>(<span class="ruby-identifier">klass</span>)
  <span class="ruby-identifier">k</span> = <span class="ruby-identifier">klass</span>.<span class="ruby-identifier">ancestors</span>.<span class="ruby-identifier">find</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">kl</span><span class="ruby-operator">|</span> <span class="ruby-identifier">kl</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-value">:superclass</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">kl</span>.<span class="ruby-identifier">superclass</span> <span class="ruby-operator">==</span> <span class="ruby-constant">ID</span> }
  <span class="ruby-keyword">unless</span> <span class="ruby-identifier">k</span>.<span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:&quot;@_rack_warned&quot;</span>)
    <span class="ruby-identifier">warn</span> <span class="ruby-node">&quot;#{klass} is inheriting from #{ID}.  Inheriting from #{ID} is deprecated, please inherit from #{Persisted} instead&quot;</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">$VERBOSE</span>
    <span class="ruby-identifier">k</span>.<span class="ruby-identifier">instance_variable_set</span>(<span class="ruby-value">:&quot;@_rack_warned&quot;</span>, <span class="ruby-keyword">true</span>)
  <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">super</span>
<span class="ruby-keyword">end</span></pre>
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     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Public Instance Methods</h3>
       </header>

<div id="method-i-delete_session" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">delete_session</span><span
            class="method-args">(req, sid, options)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
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<div class="method-description">
          
          <p>All thread safety and session destroy procedures should occur here. Should return a new session id or nil if <a href=":drop">options</a></p>

<div class="method-source-code" id="delete_session-source">
            <pre><span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 517</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">delete_session</span>(<span class="ruby-identifier">req</span>, <span class="ruby-identifier">sid</span>, <span class="ruby-identifier">options</span>)
  <span class="ruby-identifier">destroy_session</span> <span class="ruby-identifier">req</span>.<span class="ruby-identifier">env</span>, <span class="ruby-identifier">sid</span>, <span class="ruby-identifier">options</span>
<span class="ruby-keyword">end</span></pre>
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<div id="method-i-find_session" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">find_session</span><span
            class="method-args">(req, sid)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
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<div class="method-description">
          
          <p>All thread safety and session retrieval procedures should occur here. Should return [session_id, session]. If nil is provided as the session id, generation of a new valid id should occur within.</p>

<div class="method-source-code" id="find_session-source">
            <pre><span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 502</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">find_session</span>(<span class="ruby-identifier">req</span>, <span class="ruby-identifier">sid</span>)
  <span class="ruby-identifier">get_session</span> <span class="ruby-identifier">req</span>.<span class="ruby-identifier">env</span>, <span class="ruby-identifier">sid</span>
<span class="ruby-keyword">end</span></pre>
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<div id="method-i-write_session" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">write_session</span><span
            class="method-args">(req, sid, session, options)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p>All thread safety and session storage procedures should occur here. Must return the session id if the session was saved successfully, or false if the session could not be saved.</p>

<div class="method-source-code" id="write_session-source">
            <pre><span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 510</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">write_session</span>(<span class="ruby-identifier">req</span>, <span class="ruby-identifier">sid</span>, <span class="ruby-identifier">session</span>, <span class="ruby-identifier">options</span>)
  <span class="ruby-identifier">set_session</span> <span class="ruby-identifier">req</span>.<span class="ruby-identifier">env</span>, <span class="ruby-identifier">sid</span>, <span class="ruby-identifier">session</span>, <span class="ruby-identifier">options</span>
<span class="ruby-keyword">end</span></pre>
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