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  87. 

  88. <div class="header">
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  89.   <div class="summary">
    90. 

  90. <a href="#pub-static-methods">Static Public Member Functions</a> &#124;
    91. 

  91. <a href="class_util-members.htm">List of all members</a>  </div>
    92. 

  92.   <div class="headertitle">
    93. 

  93. <div class="title">Util Class Reference</div>  </div>
    94. 

  94. </div><!--header-->
    95. 

  95. <div class="contents">
    96. 

  96. 

  97. <p>Utility functions.  
    98. 

  98.  <a href="class_util.htm#details">More...</a></p>
    99. 

  99. 

  100. <p><code>#include &lt;<a class="el" href="_easy_qt_sql___util_8h_source.htm">EasyQtSql_Util.h</a>&gt;</code></p>
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  101. <table class="memberdecls">
    102. 

  102. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
    103. 

  103. Static Public Member Functions</h2></td></tr>
    104. 

  104. <tr class="memitem:ab212a05ceda1f1060b772f6908253af2"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
    105. 

  105. <tr class="memitem:ab212a05ceda1f1060b772f6908253af2"><td class="memTemplItemLeft" align="right" valign="top">static int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_util.htm#ab212a05ceda1f1060b772f6908253af2">each</a> (<a class="el" href="class_query_result.htm">QueryResult</a> &amp;res, Func &amp;&amp;f)</td></tr>
    106. 

  106. <tr class="memdesc:ab212a05ceda1f1060b772f6908253af2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Applies function (lambda) f to each row in res.  <a href="#ab212a05ceda1f1060b772f6908253af2">More...</a><br /></td></tr>
    107. 

  107. <tr class="separator:ab212a05ceda1f1060b772f6908253af2"><td class="memSeparator" colspan="2">&#160;</td></tr>
    108. 

  108. <tr class="memitem:af0d70a7ab17cd3f445cfeda22e367185"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
    109. 

  109. <tr class="memitem:af0d70a7ab17cd3f445cfeda22e367185"><td class="memTemplItemLeft" align="right" valign="top">static int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_util.htm#af0d70a7ab17cd3f445cfeda22e367185">range</a> (<a class="el" href="class_query_result.htm">QueryResult</a> &amp;res, int start, int count, Func &amp;&amp;f)</td></tr>
    110. 

  110. <tr class="memdesc:af0d70a7ab17cd3f445cfeda22e367185"><td class="mdescLeft">&#160;</td><td class="mdescRight">Applies function (lambda) f to count rows starting from start index.  <a href="#af0d70a7ab17cd3f445cfeda22e367185">More...</a><br /></td></tr>
    111. 

  111. <tr class="separator:af0d70a7ab17cd3f445cfeda22e367185"><td class="memSeparator" colspan="2">&#160;</td></tr>
    112. 

  112. <tr class="memitem:a8b0d3aaa507f4f4add129795a2cd6247"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
    113. 

  113. <tr class="memitem:a8b0d3aaa507f4f4add129795a2cd6247"><td class="memTemplItemLeft" align="right" valign="top">static int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_util.htm#a8b0d3aaa507f4f4add129795a2cd6247">top</a> (<a class="el" href="class_query_result.htm">QueryResult</a> &amp;res, int topCount, Func &amp;&amp;f)</td></tr>
    114. 

  114. <tr class="memdesc:a8b0d3aaa507f4f4add129795a2cd6247"><td class="mdescLeft">&#160;</td><td class="mdescRight">Applies function (lambda) f to topCount rows from res.  <a href="#a8b0d3aaa507f4f4add129795a2cd6247">More...</a><br /></td></tr>
    115. 

  115. <tr class="separator:a8b0d3aaa507f4f4add129795a2cd6247"><td class="memSeparator" colspan="2">&#160;</td></tr>
    116. 

  116. <tr class="memitem:a08e77f4051011d51e9d79339a839580a"><td class="memTemplParams" colspan="2">template&lt;typename Func &gt; </td></tr>
    117. 

  117. <tr class="memitem:a08e77f4051011d51e9d79339a839580a"><td class="memTemplItemLeft" align="right" valign="top">static int&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_util.htm#a08e77f4051011d51e9d79339a839580a">first</a> (<a class="el" href="class_query_result.htm">QueryResult</a> &amp;res, Func &amp;&amp;f)</td></tr>
    118. 

  118. <tr class="memdesc:a08e77f4051011d51e9d79339a839580a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Applies function (lambda) f to first result row.  <a href="#a08e77f4051011d51e9d79339a839580a">More...</a><br /></td></tr>
    119. 

  119. <tr class="separator:a08e77f4051011d51e9d79339a839580a"><td class="memSeparator" colspan="2">&#160;</td></tr>
    120. 

  120. </table>
    121. 

  121. <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
    122. 

  122. <div class="textblock"><p>Utility functions. </p>
    123. 

  123. <div class="fragment"><div class="line">t.<a class="code" href="class_database.htm#ad2283c7025501aafc33530d19beb02b4">first</a>(<span class="stringliteral">&quot;SELECT 1&quot;</span>, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &amp;row){</div><div class="line">   qDebug() &lt;&lt; row.<a class="code" href="class_query_result.htm#a5e3b49cb821efecac406606d9e3adb13">scalar</a>&lt;<span class="keywordtype">bool</span>&gt;();</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">&quot;SELECT * FROM table1&quot;</span>, [](<span class="keyword">const</span> <a class="code" href="class_query_result.htm">QueryResult</a> &amp;row){</div><div class="line">   qDebug() &lt;&lt; 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">&quot;SELECT a, b, c, d FROM table1 WHERE a = ? AND b = ?&quot;</span>);</div><div class="line"></div><div class="line"><a class="code" href="class_util.htm#ab212a05ceda1f1060b772f6908253af2">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> &amp;row){</div><div class="line">   qDebug() &lt;&lt; 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>
    124. 

  124. <a id="ab212a05ceda1f1060b772f6908253af2"></a>
    125. 

  125. <h2 class="memtitle"><span class="permalink"><a href="#ab212a05ceda1f1060b772f6908253af2">&#9670;&nbsp;</a></span>each()</h2>
    126. 

  126. 

  127. <div class="memitem">
    128. 

  128. <div class="memproto">
    129. 

  129. <div class="memtemplate">
    130. 

  130. template&lt;typename Func &gt; </div>
    131. 

  131. <table class="mlabels">
    132. 

  132.   <tr>
    133. 

  133.   <td class="mlabels-left">
    134. 

  134.       <table class="memname">
    135. 

  135.         <tr>
    136. 

  136.           <td class="memname">static int Util::each </td>
    137. 

  137.           <td>(</td>
    138. 

  138.           <td class="paramtype"><a class="el" href="class_query_result.htm">QueryResult</a> &amp;&#160;</td>
    139. 

  139.           <td class="paramname"><em>res</em>, </td>
    140. 

  140.         </tr>
    141. 

  141.         <tr>
    142. 

  142.           <td class="paramkey"></td>
    143. 

  143.           <td></td>
    144. 

  144.           <td class="paramtype">Func &amp;&amp;&#160;</td>
    145. 

  145.           <td class="paramname"><em>f</em>&#160;</td>
    146. 

  146.         </tr>
    147. 

  147.         <tr>
    148. 

  148.           <td></td>
    149. 

  149.           <td>)</td>
    150. 

  150.           <td></td><td></td>
    151. 

  151.         </tr>
    152. 

  152.       </table>
    153. 

  153.   </td>
    154. 

  154.   <td class="mlabels-right">
    155. 

  155. <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span>  </td>
    156. 

  156.   </tr>
    157. 

  157. </table>
    158. 

  158. </div><div class="memdoc">
    159. 

  159. 

  160. <p>Applies function (lambda) f to each row in res. </p>
    161. 

  161. <dl class="params"><dt>Parameters</dt><dd>
    162. 

  162.   <table class="params">
    163. 

  163.     <tr><td class="paramname">res</td><td><a class="el" href="class_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> </td></tr>
    164. 

  164.     <tr><td class="paramname">f</td><td>Function </td></tr>
    165. 

  165.   </table>
    166. 

  166.   </dd>
    167. 

  167. </dl>
    168. 

  168. 

  169. </div>
    170. 

  170. </div>
    171. 

  171. <a id="a08e77f4051011d51e9d79339a839580a"></a>
    172. 

  172. <h2 class="memtitle"><span class="permalink"><a href="#a08e77f4051011d51e9d79339a839580a">&#9670;&nbsp;</a></span>first()</h2>
    173. 

  173. 

  174. <div class="memitem">
    175. 

  175. <div class="memproto">
    176. 

  176. <div class="memtemplate">
    177. 

  177. template&lt;typename Func &gt; </div>
    178. 

  178. <table class="mlabels">
    179. 

  179.   <tr>
    180. 

  180.   <td class="mlabels-left">
    181. 

  181.       <table class="memname">
    182. 

  182.         <tr>
    183. 

  183.           <td class="memname">static int Util::first </td>
    184. 

  184.           <td>(</td>
    185. 

  185.           <td class="paramtype"><a class="el" href="class_query_result.htm">QueryResult</a> &amp;&#160;</td>
    186. 

  186.           <td class="paramname"><em>res</em>, </td>
    187. 

  187.         </tr>
    188. 

  188.         <tr>
    189. 

  189.           <td class="paramkey"></td>
    190. 

  190.           <td></td>
    191. 

  191.           <td class="paramtype">Func &amp;&amp;&#160;</td>
    192. 

  192.           <td class="paramname"><em>f</em>&#160;</td>
    193. 

  193.         </tr>
    194. 

  194.         <tr>
    195. 

  195.           <td></td>
    196. 

  196.           <td>)</td>
    197. 

  197.           <td></td><td></td>
    198. 

  198.         </tr>
    199. 

  199.       </table>
    200. 

  200.   </td>
    201. 

  201.   <td class="mlabels-right">
    202. 

  202. <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span>  </td>
    203. 

  203.   </tr>
    204. 

  204. </table>
    205. 

  205. </div><div class="memdoc">
    206. 

  206. 

  207. <p>Applies function (lambda) f to first result row. </p>
    208. 

  208. <dl class="params"><dt>Parameters</dt><dd>
    209. 

  209.   <table class="params">
    210. 

  210.     <tr><td class="paramname">res</td><td><a class="el" href="class_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> <br />
    211. 

  211. </td></tr>
    212. 

  212.     <tr><td class="paramname">f</td><td>Function </td></tr>
    213. 

  213.   </table>
    214. 

  214.   </dd>
    215. 

  215. </dl>
    216. 

  216. 

  217. </div>
    218. 

  218. </div>
    219. 

  219. <a id="af0d70a7ab17cd3f445cfeda22e367185"></a>
    220. 

  220. <h2 class="memtitle"><span class="permalink"><a href="#af0d70a7ab17cd3f445cfeda22e367185">&#9670;&nbsp;</a></span>range()</h2>
    221. 

  221. 

  222. <div class="memitem">
    223. 

  223. <div class="memproto">
    224. 

  224. <div class="memtemplate">
    225. 

  225. template&lt;typename Func &gt; </div>
    226. 

  226. <table class="mlabels">
    227. 

  227.   <tr>
    228. 

  228.   <td class="mlabels-left">
    229. 

  229.       <table class="memname">
    230. 

  230.         <tr>
    231. 

  231.           <td class="memname">static int Util::range </td>
    232. 

  232.           <td>(</td>
    233. 

  233.           <td class="paramtype"><a class="el" href="class_query_result.htm">QueryResult</a> &amp;&#160;</td>
    234. 

  234.           <td class="paramname"><em>res</em>, </td>
    235. 

  235.         </tr>
    236. 

  236.         <tr>
    237. 

  237.           <td class="paramkey"></td>
    238. 

  238.           <td></td>
    239. 

  239.           <td class="paramtype">int&#160;</td>
    240. 

  240.           <td class="paramname"><em>start</em>, </td>
    241. 

  241.         </tr>
    242. 

  242.         <tr>
    243. 

  243.           <td class="paramkey"></td>
    244. 

  244.           <td></td>
    245. 

  245.           <td class="paramtype">int&#160;</td>
    246. 

  246.           <td class="paramname"><em>count</em>, </td>
    247. 

  247.         </tr>
    248. 

  248.         <tr>
    249. 

  249.           <td class="paramkey"></td>
    250. 

  250.           <td></td>
    251. 

  251.           <td class="paramtype">Func &amp;&amp;&#160;</td>
    252. 

  252.           <td class="paramname"><em>f</em>&#160;</td>
    253. 

  253.         </tr>
    254. 

  254.         <tr>
    255. 

  255.           <td></td>
    256. 

  256.           <td>)</td>
    257. 

  257.           <td></td><td></td>
    258. 

  258.         </tr>
    259. 

  259.       </table>
    260. 

  260.   </td>
    261. 

  261.   <td class="mlabels-right">
    262. 

  262. <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span>  </td>
    263. 

  263.   </tr>
    264. 

  264. </table>
    265. 

  265. </div><div class="memdoc">
    266. 

  266. 

  267. <p>Applies function (lambda) f to count rows starting from start index. </p>
    268. 

  268. <dl class="params"><dt>Parameters</dt><dd>
    269. 

  269.   <table class="params">
    270. 

  270.     <tr><td class="paramname">res</td><td><a class="el" href="class_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> </td></tr>
    271. 

  271.     <tr><td class="paramname">start</td><td>Index of start row </td></tr>
    272. 

  272.     <tr><td class="paramname">count</td><td>Rows count </td></tr>
    273. 

  273.     <tr><td class="paramname">f</td><td>Function </td></tr>
    274. 

  274.   </table>
    275. 

  275.   </dd>
    276. 

  276. </dl>
    277. 

  277. 

  278. </div>
    279. 

  279. </div>
    280. 

  280. <a id="a8b0d3aaa507f4f4add129795a2cd6247"></a>
    281. 

  281. <h2 class="memtitle"><span class="permalink"><a href="#a8b0d3aaa507f4f4add129795a2cd6247">&#9670;&nbsp;</a></span>top()</h2>
    282. 

  282. 

  283. <div class="memitem">
    284. 

  284. <div class="memproto">
    285. 

  285. <div class="memtemplate">
    286. 

  286. template&lt;typename Func &gt; </div>
    287. 

  287. <table class="mlabels">
    288. 

  288.   <tr>
    289. 

  289.   <td class="mlabels-left">
    290. 

  290.       <table class="memname">
    291. 

  291.         <tr>
    292. 

  292.           <td class="memname">static int Util::top </td>
    293. 

  293.           <td>(</td>
    294. 

  294.           <td class="paramtype"><a class="el" href="class_query_result.htm">QueryResult</a> &amp;&#160;</td>
    295. 

  295.           <td class="paramname"><em>res</em>, </td>
    296. 

  296.         </tr>
    297. 

  297.         <tr>
    298. 

  298.           <td class="paramkey"></td>
    299. 

  299.           <td></td>
    300. 

  300.           <td class="paramtype">int&#160;</td>
    301. 

  301.           <td class="paramname"><em>topCount</em>, </td>
    302. 

  302.         </tr>
    303. 

  303.         <tr>
    304. 

  304.           <td class="paramkey"></td>
    305. 

  305.           <td></td>
    306. 

  306.           <td class="paramtype">Func &amp;&amp;&#160;</td>
    307. 

  307.           <td class="paramname"><em>f</em>&#160;</td>
    308. 

  308.         </tr>
    309. 

  309.         <tr>
    310. 

  310.           <td></td>
    311. 

  311.           <td>)</td>
    312. 

  312.           <td></td><td></td>
    313. 

  313.         </tr>
    314. 

  314.       </table>
    315. 

  315.   </td>
    316. 

  316.   <td class="mlabels-right">
    317. 

  317. <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span>  </td>
    318. 

  318.   </tr>
    319. 

  319. </table>
    320. 

  320. </div><div class="memdoc">
    321. 

  321. 

  322. <p>Applies function (lambda) f to topCount rows from res. </p>
    323. 

  323. <dl class="params"><dt>Parameters</dt><dd>
    324. 

  324.   <table class="params">
    325. 

  325.     <tr><td class="paramname">res</td><td><a class="el" href="class_query_result.htm" title="QSqlQuery wrapper with handy data fetch methods. ">QueryResult</a> </td></tr>
    326. 

  326.     <tr><td class="paramname">topCount</td><td>Count of rows </td></tr>
    327. 

  327.     <tr><td class="paramname">count</td><td>Rows count </td></tr>
    328. 

  328.     <tr><td class="paramname">f</td><td>Function </td></tr>
    329. 

  329.   </table>
    330. 

  330.   </dd>
    331. 

  331. </dl>
    332. 

  332. 

  333. </div>
    334. 

  334. </div>
    335. 

  335. <hr/>The documentation for this class was generated from the following file:<ul>
    336. 

  336. <li>EasyQtSql/<a class="el" href="_easy_qt_sql___util_8h_source.htm">EasyQtSql_Util.h</a></li>
    337. 

  337. </ul>
    338. 

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  343.     <li class="navelem"><a class="el" href="class_util.htm">Util</a></li>
    344. 

  344.     <li class="footer">Generated by
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  345.     <a href="http://www.doxygen.org/index.html">
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  346.     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.14 </li>
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