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<htmlxmlns="http://www.w3.org/1999/xhtml"><head><title>IBase__SqliteUtils (infer.IBase__SqliteUtils)</title><linkrel="stylesheet"href="../../odoc.css"/><metacharset="utf-8"/><metaname="generator"content="odoc 1.5.0"/><metaname="viewport"content="width=device-width,initial-scale=1.0"/><scriptsrc="../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><divclass="content"><header><nav><ahref="../index.html">Up</a>–<ahref="../index.html">infer</a>» IBase__SqliteUtils</nav><h1>Module <code>IBase__SqliteUtils</code></h1></header><dl><dtclass="spec exception"id="exception-Error"><ahref="#exception-Error"class="anchor"></a><code><spanclass="keyword">exception</span></code><code><spanclass="exception">Error</span><spanclass="keyword">of</span> string</code></dt><dd><p>The functions in this module tend to raise more often than their counterparts in <code>Sqlite3</code>. In particular, they may raise if the <code>Sqlite3.Rc.t</code> result of certain operations is unexpected.</p></dd></dl><dl><dtclass="spec value"id="val-check_result_code"><ahref="#val-check_result_code"class="anchor"></a><code><spanclass="keyword">val</span> check_result_code : Sqlite3.db <span>-></span><span>log:string</span><span>-></span> Sqlite3.Rc.t <span>-></span> unit</code></dt><dd><p>Assert that the result is either <code>Sqlite3.Rc.OK</code> or <code>Sqlite3.Rc.ROW</code>. If the result is not valid, raise <ahref="index.html#exception-Error"><code>Error</code></a>.</p></dd></dl><dl><dtclass="spec value"id="val-exec"><ahref="#val-exec"class="anchor"></a><code><spanclass="keyword">val</span> exec : Sqlite3.db <span>-></span><span>log:string</span><span>-></span><span>stmt:string</span><span>-></span> unit</code></dt><dd><p>Execute the given Sqlite <code>stmt</code> and check the result with <ahref="index.html#val-check_result_code"><code>check_result_code</code></a>.</p></dd></dl><dl><dtclass="spec value"id="val-finalize"><ahref="#val-finalize"class="anchor"></a><code><spanclass="keyword">val</span> finalize : Sqlite3.db <span>-></span><span>log:string</span><span>-></span> Sqlite3.stmt <span>-></span> unit</code></dt><dd><p>Finalize the given <code>stmt</code>. Raises <ahref="index.html#exception-Error"><code>Error</code></a> on failure.</p></dd></dl><dl><dtclass="spec value"id="val-result_fold_rows"><ahref="#val-result_fold_rows"class="anchor"></a><code><spanclass="keyword">val</span> result_fold_rows : <span>?⁠finalize:bool</span><span>-></span> Sqlite3.db <span>-></span><span>log:string</span><span>-></span> Sqlite3.stmt <span>-></span><span>init:<spanclass="type-var">'a</span></span><span>-></span><span>f:<span>(<spanclass="type-var">'a</span><span>-></span> Sqlite3.stmt <span>-></span><spanclass="type-var">'a</span>)</span></span><span>-></span><spanclass="type-var">'a</span></code></dt><dd><p>Fold <code>f</code> over each row of the result. <code>f</code> must not access the database.</p></dd></dl><dl><dtclass="spec value"id="val-result_fold_single_column_rows"><ahref="#val-result_fold_single_column_rows"class="anchor"></a><code><spanclass="keyword">val</span> result_fold_single_column_rows : <span>?⁠finalize:bool</span><span>-></span> Sqlite3.db <span>-></span><span>log:string</span><span>-></span> Sqlite3.stmt <span>-></span><span>init:<spanclass="type-var">'b</span></span><span>-></span><span>f:<span>(<spanclass="type-var">'b</span><span>-></span> Sqlite3.Data.t <span>-></span><spanclass="type-var">'b</span>)</span></span><span>-></span><spanclass="type-var">'b</span></code></dt><dd><p>Like <ahref="index.html#val-result_fold_rows"><code>result_fold_rows</code></a> but pass column 0 of each row in the results to <code>f</code>.</p></dd></dl><dl><dtclass="spec value"id="val-result_option"><ahref="#val-result_option"class="anchor"></a><code><spanclass="keyword">val</span> result_option : <span>?⁠finalize:bool</span><span>-></span> Sqlite3.db <span>-></span><span>log:string</span><span>-></span><span>read_row:<span>(Sqlite3.stmt <span>-></span><spanclass="type-var">'a</span>)</span></span><span>-></span> Sqlite3.stmt <span>-></span><span><spanclass="type-var">'a</span> option</span></code></dt><dd><p>Same as <ahref="index.html#val-result_fold_rows"><code>result_fold_rows</code></a> but asserts that at most one row is returned.</p></dd></dl><dl><dtclass="spec value"id="val-result_single_column_option"><ahref="#val-result_single_column_option"class="anchor"></a><code><spanclass="keyword">val</span> result_single_column_option : <span>?⁠finalize:bool</span><span>-></span> Sqlite3.db <span>-></span><span>log:string</span><span>-></span> Sqlite3.stmt <span>-></span><span>Sqlite3.Data.t option</span></code></dt><dd><p>Same as <ahref="index.html#val-result_fold_single_column_rows"><code>result_fold_single_column_rows</code></a> but asserts that at most one row is returned.</p></dd></dl><dl><dtclass="spec value"id="val-result_unit"><ahref="#val-result_unit"class="anchor"></a><code><spanclass="keyword">val</span> result_unit : <span>?⁠finalize:bool</span><span>-></span> Sqlite3.db <span>-></span><span>log:string</span><span>-></span> Sqlite3.stmt <span>-></span> unit</code></dt><dd><p>Same as <ahref="index.html#val-result_fold_rows"><code>result_fold_rows</code></a> but asserts that no row is returned.</p></dd></dl><dl><dtclass="spec value"id="val-db_close"><ahref="#val-db_close"class="anchor"></a><code><spanclass="keyword">val</span> db_close : Sqlite3.db <span>-></span> unit</code></dt><dd><p>Close the given database and asserts that it was effective. Raises <ahref="index.html#exception-Error"><code>Error</code></a> if not.</p></dd></dl><dl><dtclass="spec value"id="val-with_transaction"><ahref="#val-with_transaction"class="anchor"></a><code><spanclass="keyword">val</span> with_transaction : Sqlite3.db <span>-></span><span>f:<span>(unit <span>-></span> unit)</span></span><span>-></span> unit</code></dt><dd><p>Execute <code>f</code> within an explicit sqlite transaction.</p></dd></dl><dl><dtclass="spec module-type"id="module-type-Data"><ahref="#module-type-Data"class="anchor"></a><code><spanclass="keyword">module</span><spanclass="keyword">type</span><ahref="module-type-Data/index.html">Data</a> = <spanclass="keyword">sig</span> ... <spanclass="keyword">end</span></code></dt><dd><p>An API commonly needed to store and retrieve objects from the database</p></dd></dl><dl><dtclass="spec module"id="module-MarshalledDataForComparison"><ahref="#module-MarshalledDataForComparison"class="anchor"></a><code><spanclass="keyword">module</span><ahref="MarshalledDataForComparison/index.html">MarshalledDataForComparison</a> : <spanclass="keyword">functor</span> (<ahref="MarshalledDataForComparison/argument-1-D/index.html">D</a> : <spanclass="keyword">sig</span> ... <spanclass="keyword">end</span>) <span>-></span><ahref="index.html#module-type-Data">Data</a><spanclass="keyword">with</span><spanclass="keyword">type</span><ahref="MarshalledDataForComparison/index.html#type-t">t</a> = <ahref="MarshalledDataForComparison/argument-1-D/index.html#type-t">D.t</a></code></dt><dd><p>A default implementation of the Data API that encodes every objects as marshalled blobs with no sharing</p></dd></dl><dl><dtclass="spec module"id="module-MarshalledDataNOTForComparison"><ahref="#module-MarshalledDataNOTForComparison"class="anchor"></a><code><spanclass="keyword">module</span><ahref="MarshalledDataNOTForComparison/index.html">MarshalledDataNOTForComparison</a> : <spanclass="keyword">functor</span> (<ahref="MarshalledDataNOTForComparison/argument-1-D/index.html">D</a> : <spanclass="keyword">sig</span> ... <spanclass="keyword">end</span>) <span>-></span><ahref="index.html#module-type-Data">Data</a><spanclass="keyword">with</span><spanclass="keyword">type</span><ahref="MarshalledDataNOTForComparison/index.html#type-t">t</a> = <ahref="MarshalledDataNOTForComparison/argument-1-D/index.html#type-t">D.t</a></code></dt><dd><p>A default implementation of the Data API that encodes every objects as marshalled blobs</p></dd></dl><dl><dtclass="spec module"id="module-MarshalledNullableDataNOTForComparison"><ahref="#module-MarshalledNullableDataNOTForComparison"class="anchor"></a><code><spanclass="keyword">module</span><ahref="MarshalledNullableDataNOTForComparison/index.html">MarshalledNullableDataNOTForComparison</a> : <spanclass="keyword">functor</span> (<ahref="MarshalledNullableDataNOTForComparison/argument-1-D/index.html">D</a> : <spanclass="keyword">sig</span> ... <spanclass="keyword">end</span>) <span>-></span><ahref="index.html#module-type-Data">Data</a><spanclass="keyword">with</span><spanclass="keyword">type</span><ahref="MarshalledNullableDataNOTForComparison/index.html#type-t">t</a> = <span><ahref="MarshalledNullableDataNOTForComparison/argument-1-D/index.html#type-t">D.t</a> option</span></code></dt><dd><p>A default implementation of the Data API that encodes None as a NULL SQLite value</p></dd></dl></div></body></html>
