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<a href="#pub-static-methods">Static Public Member Functions</a> |
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<div class="title">EasyQtSql::Util Class Reference</div> </div>
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<p>Utility functions.
<a href="class_easy_qt_sql_1_1_util.htm#details">More...</a></p>
<p><code>#include <<a class="el" href="_easy_qt_sql_8h_source.htm">EasyQtSql.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:ade62df9ee2a3a40c94d7aad8b6cae23e"><td class="memTemplParams" colspan="2">template<typename Func > </td></tr>
<tr class="memitem:ade62df9ee2a3a40c94d7aad8b6cae23e"><td class="memTemplItemLeft" align="right" valign="top">static int </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_util.htm#ade62df9ee2a3a40c94d7aad8b6cae23e">each</a> (<a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> &res, Func &&f)</td></tr>
<tr class="memdesc:ade62df9ee2a3a40c94d7aad8b6cae23e"><td class="mdescLeft"> </td><td class="mdescRight">Applies function (lambda) f to each row in res. <a href="#ade62df9ee2a3a40c94d7aad8b6cae23e">More...</a><br /></td></tr>
<tr class="separator:ade62df9ee2a3a40c94d7aad8b6cae23e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a258b56d74e612aa2c40686accdf797d8"><td class="memTemplParams" colspan="2">template<typename Func > </td></tr>
<tr class="memitem:a258b56d74e612aa2c40686accdf797d8"><td class="memTemplItemLeft" align="right" valign="top">static int </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_util.htm#a258b56d74e612aa2c40686accdf797d8">range</a> (<a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> &res, int start, int count, Func &&f)</td></tr>
<tr class="memdesc:a258b56d74e612aa2c40686accdf797d8"><td class="mdescLeft"> </td><td class="mdescRight">Applies function (lambda) f to count rows starting from start index. <a href="#a258b56d74e612aa2c40686accdf797d8">More...</a><br /></td></tr>
<tr class="separator:a258b56d74e612aa2c40686accdf797d8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:add143e9560791e7a0ffb52f4fae48eeb"><td class="memTemplParams" colspan="2">template<typename Func > </td></tr>
<tr class="memitem:add143e9560791e7a0ffb52f4fae48eeb"><td class="memTemplItemLeft" align="right" valign="top">static int </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_util.htm#add143e9560791e7a0ffb52f4fae48eeb">top</a> (<a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> &res, int topCount, Func &&f)</td></tr>
<tr class="memdesc:add143e9560791e7a0ffb52f4fae48eeb"><td class="mdescLeft"> </td><td class="mdescRight">Applies function (lambda) f to topCount rows from res. <a href="#add143e9560791e7a0ffb52f4fae48eeb">More...</a><br /></td></tr>
<tr class="separator:add143e9560791e7a0ffb52f4fae48eeb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a56dc7a2122381b76edac208e307f2eac"><td class="memTemplParams" colspan="2">template<typename Func > </td></tr>
<tr class="memitem:a56dc7a2122381b76edac208e307f2eac"><td class="memTemplItemLeft" align="right" valign="top">static int </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_easy_qt_sql_1_1_util.htm#a56dc7a2122381b76edac208e307f2eac">first</a> (<a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> &res, Func &&f)</td></tr>
<tr class="memdesc:a56dc7a2122381b76edac208e307f2eac"><td class="mdescLeft"> </td><td class="mdescRight">Applies function (lambda) f to first result row. <a href="#a56dc7a2122381b76edac208e307f2eac">More...</a><br /></td></tr>
<tr class="separator:a56dc7a2122381b76edac208e307f2eac"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Utility functions. </p>
<div class="fragment"><div class="line">t.<a class="code" href="class_database.htm#ad2283c7025501aafc33530d19beb02b4">first</a>(<span class="stringliteral">"SELECT 1"</span>, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &row){</div><div class="line"> qDebug() << row.<a class="code" href="class_query_result.htm#a5e3b49cb821efecac406606d9e3adb13">scalar</a><<span class="keywordtype">bool</span>>();</div><div class="line">});</div><div class="line"></div><div class="line">t.<a class="code" href="class_database.htm#a7a13f4fc603fb829f123894d9abd6ea7">each</a>(<span class="stringliteral">"SELECT * FROM table1"</span>, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &row){</div><div class="line"> qDebug() << row.<a class="code" href="class_query_result.htm#a023bd84f7010368d616d7dbb1b399a06">toMap</a>();</div><div class="line">});</div><div class="line"></div><div class="line"><a class="code" href="class_prepared_query.htm">PreparedQuery</a> query = t.<a class="code" href="class_database.htm#a03e2c9113452bb52bb7018ef2366bce1">prepare</a>(<span class="stringliteral">"SELECT a, b, c, d FROM table1 WHERE a = ? AND b = ?"</span>);</div><div class="line"></div><div class="line"><a class="code" href="class_easy_qt_sql_1_1_util.htm#ade62df9ee2a3a40c94d7aad8b6cae23e">Util::each</a>(query.<a class="code" href="class_prepared_query.htm#a1013aea1638d6d04868ce39130bc1b67">exec</a>(1, 2), [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &row){</div><div class="line"> qDebug() << row.<a class="code" href="class_query_result.htm#a023bd84f7010368d616d7dbb1b399a06">toMap</a>();</div><div class="line">});</div></div><!-- fragment --> </div><h2 class="groupheader">Member Function Documentation</h2>
<a id="ade62df9ee2a3a40c94d7aad8b6cae23e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ade62df9ee2a3a40c94d7aad8b6cae23e">◆ </a></span>each()</h2>
<div class="memitem">
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template<typename Func > </div>
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<td class="mlabels-left">
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<td class="memname">static int EasyQtSql::Util::each </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> & </td>
<td class="paramname"><em>res</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">Func && </td>
<td class="paramname"><em>f</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
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</div><div class="memdoc">
<p>Applies function (lambda) f to each row in res. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res</td><td><a class="el" href="class_easy_qt_sql_1_1_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> </td></tr>
<tr><td class="paramname">f</td><td>Function </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="a56dc7a2122381b76edac208e307f2eac"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a56dc7a2122381b76edac208e307f2eac">◆ </a></span>first()</h2>
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template<typename Func > </div>
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<td class="memname">static int EasyQtSql::Util::first </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> & </td>
<td class="paramname"><em>res</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">Func && </td>
<td class="paramname"><em>f</em> </td>
</tr>
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<td></td>
<td>)</td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
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<p>Applies function (lambda) f to first result row. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res</td><td><a class="el" href="class_easy_qt_sql_1_1_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> <br />
</td></tr>
<tr><td class="paramname">f</td><td>Function </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="a258b56d74e612aa2c40686accdf797d8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a258b56d74e612aa2c40686accdf797d8">◆ </a></span>range()</h2>
<div class="memitem">
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template<typename Func > </div>
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<td class="memname">static int EasyQtSql::Util::range </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> & </td>
<td class="paramname"><em>res</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>start</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>count</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">Func && </td>
<td class="paramname"><em>f</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
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<p>Applies function (lambda) f to count rows starting from start index. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res</td><td><a class="el" href="class_easy_qt_sql_1_1_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> </td></tr>
<tr><td class="paramname">start</td><td>Index of start row </td></tr>
<tr><td class="paramname">count</td><td>Rows count </td></tr>
<tr><td class="paramname">f</td><td>Function </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="add143e9560791e7a0ffb52f4fae48eeb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#add143e9560791e7a0ffb52f4fae48eeb">◆ </a></span>top()</h2>
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<td class="memname">static int EasyQtSql::Util::top </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_easy_qt_sql_1_1_query_result.htm">QueryResult</a> & </td>
<td class="paramname"><em>res</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>topCount</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">Func && </td>
<td class="paramname"><em>f</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
</tr>
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</div><div class="memdoc">
<p>Applies function (lambda) f to topCount rows from res. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res</td><td><a class="el" href="class_easy_qt_sql_1_1_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> </td></tr>
<tr><td class="paramname">topCount</td><td>Count of rows </td></tr>
<tr><td class="paramname">count</td><td>Rows count </td></tr>
<tr><td class="paramname">f</td><td>Function </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>EasyQtSql/<a class="el" href="_easy_qt_sql_8h_source.htm">EasyQtSql.h</a></li>
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