134 lines
6.4 KiB
HTML
134 lines
6.4 KiB
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<meta name="keywords" content="rust, rustlang, rust-lang, q_once">
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<title>mentat_transaction::query::q_once - Rust</title>
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<p class='location'><a href='../index.html'>mentat_transaction</a>::<wbr><a href='index.html'>query</a></p><script>window.sidebarCurrent = {name: 'q_once', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script>
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<h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>mentat_transaction</a>::<wbr><a href='index.html'>query</a>::<wbr><a class="fn" href=''>q_once</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../../src/mentat_transaction/query.rs.html#366-375' title='goto source code'>[src]</a></span></h1>
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<pre class='rust fn'>pub fn q_once<'sqlite, 'query, T>(<br> sqlite: &'sqlite <a class="struct" href="../../rusqlite/struct.Connection.html" title="struct rusqlite::Connection">Connection</a>, <br> known: <a class="struct" href="../../mentat_transaction/query/struct.Known.html" title="struct mentat_transaction::query::Known">Known</a>, <br> query: &'query <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> inputs: T<br>) -> <a class="type" href="../../mentat_transaction/query/type.QueryExecutionResult.html" title="type mentat_transaction::query::QueryExecutionResult">QueryExecutionResult</a> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../mentat_transaction/query/struct.QueryInputs.html" title="struct mentat_transaction::query::QueryInputs">QueryInputs</a>>>, </span></pre><div class='docblock'><p>Take an EDN query string, a reference to an open SQLite connection, a Mentat schema, and an
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optional collection of input bindings (which should be keyed by <code>"?varname"</code>), and execute the
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query immediately, blocking the current thread.
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Returns a structure that corresponds to the kind of input query, populated with <code>TypedValue</code>
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instances.
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The caller is responsible for ensuring that the SQLite connection has an open transaction if
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isolation is required.</p>
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