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<div class="section" id="yaml-mapping">
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<h1>YAML Mapping<a class="headerlink" href="#yaml-mapping" title="Permalink to this headline">¶</a></h1>
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<p>The YAML mapping driver enables you to provide the ODM metadata in
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form of YAML documents.</p>
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<p>The YAML mapping document of a class is loaded on-demand the first
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time it is requested and subsequently stored in the metadata cache.
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In order to work, this requires certain conventions:</p>
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<ul class="simple">
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<li>Each document/mapped superclass must get its own dedicated YAML
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mapping document.</li>
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<li>The name of the mapping document must consist of the fully
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qualified name of the class, where namespace separators are
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replaced by dots (.).</li>
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<li>All mapping documents should get the extension ".dcm.yml" to
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identify it as a Doctrine mapping file. This is more of a
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convention and you are not forced to do this. You can change the
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file extension easily enough.</li>
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<li></li>
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</ul>
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<div class="highlight-php"><div class="highlight"><pre><span class="cp"><?php</span>
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<span class="nv">$driver</span><span class="o">-></span><span class="na">setFileExtension</span><span class="p">(</span><span class="s1">'.yml'</span><span class="p">);</span>
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</pre></div>
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</div>
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<p>It is recommended to put all YAML mapping documents in a single
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folder but you can spread the documents over several folders if you
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want to. In order to tell the YamlDriver where to look for your
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mapping documents, supply an array of paths as the first argument
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of the constructor, like this:</p>
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<div class="highlight-php"><div class="highlight"><pre><span class="cp"><?php</span>
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<span class="c1">// $config instanceof Doctrine\ODM\MongoDB\Configuration</span>
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<span class="nv">$driver</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">YamlDriver</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'/path/to/files'</span><span class="p">));</span>
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<span class="nv">$config</span><span class="o">-></span><span class="na">setMetadataDriverImpl</span><span class="p">(</span><span class="nv">$driver</span><span class="p">);</span>
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</pre></div>
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</div>
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<div class="section" id="simplified-yaml-driver">
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<h2>Simplified YAML Driver<a class="headerlink" href="#simplified-yaml-driver" title="Permalink to this headline">¶</a></h2>
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<p>The Symfony project sponsored a driver that simplifies usage of the YAML Driver.
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The changes between the original driver are:</p>
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<ol class="arabic simple">
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<li>File Extension is .mongodb-odm.yml</li>
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<li>Filenames are shortened, "MyProject\Documents\User" will become User.mongodb-odm.yml</li>
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<li>You can add a global file and add multiple documents in this file.</li>
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</ol>
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<p>Configuration of this client works a little bit different:</p>
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<div class="highlight-php"><div class="highlight"><pre><span class="cp"><?php</span>
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<span class="nv">$namespaces</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
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<span class="s1">'/path/to/files1'</span> <span class="o">=></span> <span class="s1">'MyProject\Documents'</span><span class="p">,</span>
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<span class="s1">'/path/to/files2'</span> <span class="o">=></span> <span class="s1">'OtherProject\Documents'</span>
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<span class="p">);</span>
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<span class="nv">$driver</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">\Doctrine\ODM\MongoDB\Mapping\Driver\SimplifiedYamlDriver</span><span class="p">(</span><span class="nv">$namespaces</span><span class="p">);</span>
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<span class="nv">$driver</span><span class="o">-></span><span class="na">setGlobalBasename</span><span class="p">(</span><span class="s1">'global'</span><span class="p">);</span> <span class="c1">// global.mongodb-odm.yml</span>
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</pre></div>
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</div>
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<div class="section" id="example">
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<h3>Example<a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h3>
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<p>As a quick start, here is a small example document that makes use
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of several common elements:</p>
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<div class="highlight-yaml"><div class="highlight"><pre><span class="c1"># Documents.User.dcm.yml</span>
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<span class="l l-Scalar l-Scalar-Plain">Documents\User</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">db</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">documents</span>
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<span class="l l-Scalar l-Scalar-Plain">collection</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">user</span>
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<span class="l l-Scalar l-Scalar-Plain">fields</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">id</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">id</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">username</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">name</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">login</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">string</span>
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<span class="l l-Scalar l-Scalar-Plain">email</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">unique</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">order</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">desc</span>
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<span class="l l-Scalar l-Scalar-Plain">createdAt</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">date</span>
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<span class="l l-Scalar l-Scalar-Plain">indexes</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">index1</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">keys</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">username</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">desc</span>
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<span class="l l-Scalar l-Scalar-Plain">options</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">unique</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">dropDups</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">safe</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">embedOne</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">address</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Address</span>
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<span class="l l-Scalar l-Scalar-Plain">embedMany</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">phonenumbers</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Phonenumber</span>
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<span class="l l-Scalar l-Scalar-Plain">referenceOne</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">profile</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Profile</span>
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<span class="l l-Scalar l-Scalar-Plain">cascade</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">all</span>
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<span class="l l-Scalar l-Scalar-Plain">account</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Account</span>
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<span class="l l-Scalar l-Scalar-Plain">cascade</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">all</span>
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<span class="l l-Scalar l-Scalar-Plain">referenceMany</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">groups</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Group</span>
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<span class="l l-Scalar l-Scalar-Plain">cascade</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">all</span>
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<span class="c1"># Alternative syntax for the exact same example</span>
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<span class="c1"># (allows custom key name for embedded document and reference).</span>
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<span class="l l-Scalar l-Scalar-Plain">Documents\User</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">db</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">documents</span>
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<span class="l l-Scalar l-Scalar-Plain">collection</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">user</span>
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<span class="l l-Scalar l-Scalar-Plain">fields</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">id</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">id</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">username</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">name</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">login</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">string</span>
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<span class="l l-Scalar l-Scalar-Plain">email</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">unique</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">order</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">desc</span>
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<span class="l l-Scalar l-Scalar-Plain">createdAt</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">date</span>
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<span class="l l-Scalar l-Scalar-Plain">address</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">embedded</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">one</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Address</span>
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<span class="l l-Scalar l-Scalar-Plain">phonenumbers</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">embedded</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">many</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Phonenumber</span>
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<span class="l l-Scalar l-Scalar-Plain">profile</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">reference</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">one</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Profile</span>
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<span class="l l-Scalar l-Scalar-Plain">cascade</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">all</span>
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<span class="l l-Scalar l-Scalar-Plain">account</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">reference</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">one</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Account</span>
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<span class="l l-Scalar l-Scalar-Plain">cascade</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">all</span>
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<span class="l l-Scalar l-Scalar-Plain">groups</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">reference</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">many</span>
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<span class="l l-Scalar l-Scalar-Plain">targetDocument</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">Documents\Group</span>
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<span class="l l-Scalar l-Scalar-Plain">cascade</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">all</span>
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<span class="l l-Scalar l-Scalar-Plain">indexes</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">index1</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">keys</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">username</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">desc</span>
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<span class="l l-Scalar l-Scalar-Plain">options</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">unique</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">dropDups</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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<span class="l l-Scalar l-Scalar-Plain">safe</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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</pre></div>
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</div>
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<p>Be aware that class-names specified in the YAML files should be fully qualified.</p>
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<div class="admonition note">
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<p class="first admonition-title">Note</p>
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<p class="last">The <code class="docutils literal"><span class="pre">name</span></code> property is an optional setting to change name of the field
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<strong>in the database</strong>. Specifying it is optional and defaults to the name
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of mapped field.</p>
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</div>
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</div>
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<div class="section" id="reference">
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<h3>Reference<a class="headerlink" href="#reference" title="Permalink to this headline">¶</a></h3>
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<div class="section" id="lock">
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<span id="yml-reference-lock"></span><h4>Lock<a class="headerlink" href="#lock" title="Permalink to this headline">¶</a></h4>
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<p>The field with the <code class="docutils literal"><span class="pre">lock</span></code> property will be used to store lock information for <a class="reference internal" href="transactions-and-concurrency.html#transactions-and-concurrency-pessimistic-locking"><span class="std std-ref">pessimistic locking</span></a>.
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This is only compatible with the <code class="docutils literal"><span class="pre">int</span></code> field type, and cannot be combined with <code class="docutils literal"><span class="pre">id:</span> <span class="pre">true</span></code>.</p>
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<div class="highlight-yaml"><div class="highlight"><pre><span class="l l-Scalar l-Scalar-Plain">lock</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">int</span>
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<span class="l l-Scalar l-Scalar-Plain">lock</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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</pre></div>
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</div>
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</div>
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<div class="section" id="version">
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<span id="yml-reference-version"></span><h4>Version<a class="headerlink" href="#version" title="Permalink to this headline">¶</a></h4>
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<p>The field with the <code class="docutils literal"><span class="pre">version</span></code> property will be used to store version information for <a class="reference internal" href="transactions-and-concurrency.html#transactions-and-concurrency-optimistic-locking"><span class="std std-ref">optimistic locking</span></a>.
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This is only compatible with <code class="docutils literal"><span class="pre">int</span></code> and <code class="docutils literal"><span class="pre">date</span></code> field types, and cannot be combined with <code class="docutils literal"><span class="pre">id:</span> <span class="pre">true</span></code>.</p>
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<div class="highlight-yaml"><div class="highlight"><pre><span class="l l-Scalar l-Scalar-Plain">version</span><span class="p p-Indicator">:</span>
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<span class="l l-Scalar l-Scalar-Plain">type</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">int</span>
|
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<span class="l l-Scalar l-Scalar-Plain">version</span><span class="p p-Indicator">:</span> <span class="l l-Scalar l-Scalar-Plain">true</span>
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</pre></div>
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</div>
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<p>By default, Doctrine ODM updates <a class="reference internal" href="embedded-mapping.html#embed-many"><span class="std std-ref">embed-many</span></a> and
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<a class="reference internal" href="reference-mapping.html#reference-many"><span class="std std-ref">reference-many</span></a> collections in separate write operations,
|
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which do not bump the document version. Users employing document versioning are
|
|
encouraged to use the <a class="reference internal" href="storage-strategies.html#atomic-set"><span class="std std-ref">atomicSet</span></a> or
|
|
<a class="reference internal" href="storage-strategies.html#atomic-set-array"><span class="std std-ref">atomicSetArray</span></a> strategies for such collections, which
|
|
will ensure that collections are updated in the same write operation as the
|
|
versioned parent document.</p>
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</div>
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</div>
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<h3><a href="../index.html">Table Of Contents</a></h3>
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<ul>
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<li><a class="reference internal" href="#">YAML Mapping</a><ul>
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<li><a class="reference internal" href="#simplified-yaml-driver">Simplified YAML Driver</a><ul>
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<li><a class="reference internal" href="#example">Example</a></li>
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<li><a class="reference internal" href="#reference">Reference</a><ul>
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<li><a class="reference internal" href="#lock">Lock</a></li>
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<li><a class="reference internal" href="#version">Version</a></li>
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</ul>
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</li>
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</ul>
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<li><a href="../_sources/reference/yml-mapping.rst.txt"
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rel="nofollow">Show Source</a></li>
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