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354 lines
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HTML
354 lines
11 KiB
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<title>DB::Driver - github.com/crystal-lang/crystal-db</title>
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<ul>
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<li class="parent open current" data-id="github.com/crystal-lang/crystal-db/DB" data-name="db">
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<a href="../DB.html">DB</a>
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<ul>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/Any" data-name="db::any">
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<a href="../DB/Disposable.html">Disposable</a>
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<li class=" current" data-id="github.com/crystal-lang/crystal-db/DB/Driver" data-name="db::driver">
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<a href="../DB/Driver.html">Driver</a>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/Error" data-name="db::error">
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<a href="../DB/Error.html">Error</a>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/ExecResult" data-name="db::execresult">
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<a href="../DB/ExecResult.html">ExecResult</a>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/Mappable" data-name="db::mappable">
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<a href="../DB/Mappable.html">Mappable</a>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/MappingException" data-name="db::mappingexception">
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<a href="../DB/MappingException.html">MappingException</a>
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</li>
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<li class="parent " data-id="github.com/crystal-lang/crystal-db/DB/Pool" data-name="db::pool(t)">
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<a href="../DB/Pool.html">Pool</a>
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<ul>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/Pool/TimeoutHelper" data-name="db::pool::timeouthelper">
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<a href="../DB/Pool/TimeoutHelper.html">TimeoutHelper</a>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/PoolPreparedStatement" data-name="db::poolpreparedstatement">
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<a href="../DB/PoolPreparedStatement.html">PoolPreparedStatement</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/PoolRetryAttemptsExceeded" data-name="db::poolretryattemptsexceeded">
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<a href="../DB/PoolRetryAttemptsExceeded.html">PoolRetryAttemptsExceeded</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/PoolStatement" data-name="db::poolstatement">
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<a href="../DB/PoolStatement.html">PoolStatement</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/PoolTimeout" data-name="db::pooltimeout">
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<a href="../DB/PoolTimeout.html">PoolTimeout</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/PoolUnpreparedStatement" data-name="db::poolunpreparedstatement">
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<a href="../DB/PoolUnpreparedStatement.html">PoolUnpreparedStatement</a>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/QueryMethods" data-name="db::querymethods">
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<a href="../DB/QueryMethods.html">QueryMethods</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/ResultSet" data-name="db::resultset">
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<a href="../DB/ResultSet.html">ResultSet</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/Rollback" data-name="db::rollback">
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<a href="../DB/Rollback.html">Rollback</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/SavePointTransaction" data-name="db::savepointtransaction">
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<a href="../DB/SavePointTransaction.html">SavePointTransaction</a>
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</li>
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<li class="parent " data-id="github.com/crystal-lang/crystal-db/DB/SessionMethods" data-name="db::sessionmethods(session, stmt)">
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<a href="../DB/SessionMethods.html">SessionMethods</a>
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<ul>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/SessionMethods/PreparedQuery" data-name="db::sessionmethods::preparedquery(session, stmt)">
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<a href="../DB/SessionMethods/PreparedQuery.html">PreparedQuery</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/SessionMethods/UnpreparedQuery" data-name="db::sessionmethods::unpreparedquery(session, stmt)">
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<a href="../DB/SessionMethods/UnpreparedQuery.html">UnpreparedQuery</a>
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</li>
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</ul>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/Statement" data-name="db::statement">
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<a href="../DB/Statement.html">Statement</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/StatementMethods" data-name="db::statementmethods">
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<a href="../DB/StatementMethods.html">StatementMethods</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/StringKeyCache" data-name="db::stringkeycache(t)">
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<a href="../DB/StringKeyCache.html">StringKeyCache</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/TopLevelTransaction" data-name="db::topleveltransaction">
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<a href="../DB/TopLevelTransaction.html">TopLevelTransaction</a>
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</li>
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<li class=" " data-id="github.com/crystal-lang/crystal-db/DB/Transaction" data-name="db::transaction">
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<a href="../DB/Transaction.html">Transaction</a>
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</li>
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</ul>
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</li>
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</ul>
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</div>
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<div id="main-content">
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<h1 class="type-name">
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<span class="kind">abstract class</span> DB::Driver
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</h1>
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<ul class="superclass-hierarchy"><li class="superclass"><a href="../DB/Driver.html">DB::Driver</a></li><li class="superclass">Reference</li><li class="superclass">Object</li></ul>
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<h2>Overview</h2>
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<p>Database driver implementors must subclass <code><a href="../DB/Driver.html">Driver</a></code>,
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register with a driver_name using <code><a href="../DB.html#register_driver%28driver_name%2Cdriver_class%3ADriver.class%29-class-method">DB#register_driver</a></code> and
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override the factory method <code><a href="../DB/Driver.html#build_connection%28context%3AConnectionContext%29%3AConnection-instance-method">#build_connection</a></code>.</p>
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<pre><code><span class="k">require</span> <span class="s">"db"</span>
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<span class="k">class</span> <span class="t">FakeDriver</span> <span class="o"><</span> <span class="t">DB</span><span class="t">::</span><span class="t">Driver</span>
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<span class="k">def</span> <span class="m">build_connection</span>(context : <span class="t">DB</span><span class="t">::</span><span class="t">ConnectionContext</span>)
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<span class="t">FakeConnection</span>.<span class="k">new</span> context
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<span class="k">end</span>
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<span class="k">end</span>
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<span class="t">DB</span>.register_driver <span class="s">"fake"</span>, <span class="t">FakeDriver</span></code></pre>
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<p>Access to this fake datbase will be available with</p>
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<pre><code><span class="t">DB</span>.open <span class="s">"fake://..."</span> <span class="k">do</span> <span class="o">|</span>db<span class="o">|</span>
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<span class="c"># ... use db ...</span>
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<span class="k">end</span></code></pre>
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<p>Refer to <code><a href="../DB/Connection.html">Connection</a></code>, <code><a href="../DB/Statement.html">Statement</a></code> and <code><a href="../DB/ResultSet.html">ResultSet</a></code> for further
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driver implementation instructions.</p>
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<h2>Defined in:</h2>
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<a href="https://github.com/crystal-lang/crystal-db/blob/545d758ae0e8ff107c3fcb62445cda7b38c0fd72/src/db/driver.cr#L28" target="_blank">db/driver.cr</a>
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<br/>
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<h2>Instance Method Summary</h2>
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<ul class="list-summary">
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<li class="entry-summary">
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<a href="#build_connection%28context%3AConnectionContext%29%3AConnection-instance-method" class="signature"><strong>#build_connection</strong>(context : ConnectionContext) : Connection</a>
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</li>
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<li class="entry-summary">
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<a href="#connection_pool_options%28params%3AHTTP%3A%3AParams%29-instance-method" class="signature"><strong>#connection_pool_options</strong>(params : HTTP::Params)</a>
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</li>
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</ul>
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<div class="methods-inherited">
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</div>
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<h2>Instance Method Detail</h2>
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<div class="entry-detail" id="build_connection(context:ConnectionContext):Connection-instance-method">
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<div class="signature">
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abstract
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def <strong>build_connection</strong>(context : <a href="../DB/ConnectionContext.html">ConnectionContext</a>) : <a href="../DB/Connection.html">Connection</a>
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<a class="method-permalink" href="#build_connection%28context%3AConnectionContext%29%3AConnection-instance-method">#</a>
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</div>
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<br/>
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<div>
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[<a href="https://github.com/crystal-lang/crystal-db/blob/545d758ae0e8ff107c3fcb62445cda7b38c0fd72/src/db/driver.cr#L29" target="_blank">View source</a>]
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</div>
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</div>
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<div class="entry-detail" id="connection_pool_options(params:HTTP::Params)-instance-method">
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<div class="signature">
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def <strong>connection_pool_options</strong>(params : HTTP::Params)
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<a class="method-permalink" href="#connection_pool_options%28params%3AHTTP%3A%3AParams%29-instance-method">#</a>
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</div>
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<br/>
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<div>
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[<a href="https://github.com/crystal-lang/crystal-db/blob/545d758ae0e8ff107c3fcb62445cda7b38c0fd72/src/db/driver.cr#L31" target="_blank">View source</a>]
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</div>
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</div>
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</div>
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</body>
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</html>
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