72 lines
14 KiB
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72 lines
14 KiB
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<div id="content">
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<h1 align="center">Source for file Db2.php</h1>
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<p>Documentation is available at <a href="../Doctrine/_Doctrine---Connection---Db2.php.html">Db2.php</a></p>
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<div class="src-code"><span class="php">
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<ol><li><div class="src-line"><a name="a1"></a><span class="src-php"><?php</span></div></li>
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<li><div class="src-line"><a name="a2"></a><span class="src-comm">/*</span></div></li>
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<li><div class="src-line"><a name="a3"></a><span class="src-comm"> * $Id: Db2.php 1181 2007-03-20 23:22:51Z gnat $</span></div></li>
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<li><div class="src-line"><a name="a4"></a><span class="src-comm"> *</span></div></li>
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<li><div class="src-line"><a name="a5"></a><span class="src-comm"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div></li>
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<li><div class="src-line"><a name="a6"></a><span class="src-comm"> * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div></li>
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<li><div class="src-line"><a name="a7"></a><span class="src-comm"> * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span></div></li>
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<li><div class="src-line"><a name="a8"></a><span class="src-comm"> * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span></div></li>
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<li><div class="src-line"><a name="a9"></a><span class="src-comm"> * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span></div></li>
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<li><div class="src-line"><a name="a10"></a><span class="src-comm"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span></div></li>
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<li><div class="src-line"><a name="a11"></a><span class="src-comm"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div></li>
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<li><div class="src-line"><a name="a12"></a><span class="src-comm"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div></li>
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<li><div class="src-line"><a name="a13"></a><span class="src-comm"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div></li>
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<li><div class="src-line"><a name="a14"></a><span class="src-comm"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span></div></li>
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<li><div class="src-line"><a name="a15"></a><span class="src-comm"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div></li>
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<li><div class="src-line"><a name="a16"></a><span class="src-comm"> *</span></div></li>
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<li><div class="src-line"><a name="a17"></a><span class="src-comm"> * This software consists of voluntary contributions made by many individuals</span></div></li>
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<li><div class="src-line"><a name="a18"></a><span class="src-comm"> * and is licensed under the LGPL. For more information, see</span></div></li>
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<li><div class="src-line"><a name="a19"></a><span class="src-comm"> * <http://www.phpdoctrine.com>.</span></div></li>
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<li><div class="src-line"><a name="a20"></a><span class="src-comm"> */</span></div></li>
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<li><div class="src-line"><a name="a21"></a><span class="src-id"><a href="../Doctrine/Doctrine.html">Doctrine</a></span><span class="src-sym">::</span><a href="../Doctrine/Doctrine.html#methodautoload">autoload</a><span class="src-sym">(</span><span class="src-str">'Doctrine_Connection'</span><span class="src-sym">)</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a22"></a><span class="src-doc">/**</span></div></li>
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<li><div class="src-line"><a name="a23"></a><span class="src-doc"> * Doctrine_Connection_Db2</span></div></li>
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<li><div class="src-line"><a name="a24"></a><span class="src-doc"> *</span></div></li>
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<li><div class="src-line"><a name="a25"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@package</span><span class="src-doc"> Doctrine</span></div></li>
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<li><div class="src-line"><a name="a26"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@license</span><span class="src-doc"> http://www.opensource.org/licenses/lgpl-license.php LGPL</span></div></li>
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<li><div class="src-line"><a name="a27"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@category</span><span class="src-doc"> Object Relational Mapping</span></div></li>
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<li><div class="src-line"><a name="a28"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@link</span><span class="src-doc"> www.phpdoctrine.com</span></div></li>
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<li><div class="src-line"><a name="a29"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@since</span><span class="src-doc"> 1.0</span></div></li>
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<li><div class="src-line"><a name="a30"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@version</span><span class="src-doc"> $Revision: 1181 $</span></div></li>
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<li><div class="src-line"><a name="a31"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@author</span><span class="src-doc"> Konsta Vesterinen <kvesteri@cc.hut.fi></span></div></li>
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<li><div class="src-line"><a name="a32"></a><span class="src-doc"> */</span></div></li>
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<li><div class="src-line"><a name="a33"></a><span class="src-key">class </span><a href="../Doctrine/Doctrine_Connection_Db2.html">Doctrine_Connection_Db2</a> <span class="src-key">extends </span><a href="../Doctrine/Doctrine_Connection.html">Doctrine_Connection</a></div></li>
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<li><div class="src-line"><a name="a34"></a><span class="src-sym">{</span></div></li>
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<li><div class="src-line"><a name="a35"></a> <span class="src-doc">/**</span></div></li>
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<li><div class="src-line"><a name="a36"></a><span class="src-doc"> * Adds an driver-specific LIMIT clause to the query</span></div></li>
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<li><div class="src-line"><a name="a37"></a><span class="src-doc"> *</span></div></li>
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<li><div class="src-line"><a name="a38"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@param </span><span class="src-doc-type">string </span><span class="src-doc-var">$query </span><span class="src-doc"> query to modify</span></div></li>
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<li><div class="src-line"><a name="a39"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@param </span><span class="src-doc-type">integer </span><span class="src-doc-var">$limit </span><span class="src-doc"> limit the number of rows</span></div></li>
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<li><div class="src-line"><a name="a40"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@param </span><span class="src-doc-type">integer </span><span class="src-doc-var">$offset </span><span class="src-doc"> start reading from given offset</span></div></li>
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<li><div class="src-line"><a name="a41"></a><span class="src-doc"> * </span><span class="src-doc-coretag">@return </span><span class="src-doc-type">string </span><span class="src-doc"> the modified query</span></div></li>
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<li><div class="src-line"><a name="a42"></a><span class="src-doc"> */</span></div></li>
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<li><div class="src-line"><a name="a43"></a> <span class="src-key">public </span><span class="src-key">function </span><a href="../Doctrine/Doctrine_Connection_Db2.html#methodmodifyLimitQuery">modifyLimitQuery</a><span class="src-sym">(</span><span class="src-var">$query</span><span class="src-sym">, </span><span class="src-var">$limit</span><span class="src-sym">, </span><span class="src-var">$offset</span><span class="src-sym">)</span></div></li>
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<li><div class="src-line"><a name="a44"></a> <span class="src-sym">{</span></div></li>
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<li><div class="src-line"><a name="a45"></a> <span class="src-key">if </span><span class="src-sym">(</span><span class="src-var">$limit </span><= <span class="src-num">0</span><span class="src-sym">)</span></div></li>
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<li><div class="src-line"><a name="a46"></a> <span class="src-key">return </span><span class="src-var">$query</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a47"></a> </div></li>
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<li><div class="src-line"><a name="a48"></a> <span class="src-key">if </span><span class="src-sym">(</span><span class="src-var">$offset </span>== <span class="src-num">0</span><span class="src-sym">) </span><span class="src-sym">{</span></div></li>
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<li><div class="src-line"><a name="a49"></a> <span class="src-key">return </span><span class="src-var">$query </span>. <span class="src-str">' FETCH FIRST '</span>. <span class="src-var">$limit </span>.<span class="src-str">' ROWS ONLY'</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a50"></a> <span class="src-sym">} </span><span class="src-key">else </span><span class="src-sym">{</span></div></li>
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<li><div class="src-line"><a name="a51"></a> <span class="src-var">$sqlPieces </span>= <a href="http://www.php.net/explode">explode</a><span class="src-sym">(</span><span class="src-str">'from'</span><span class="src-sym">, </span><span class="src-var">$query</span><span class="src-sym">)</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a52"></a> <span class="src-var">$select </span>= <span class="src-var">$sqlPieces</span><span class="src-sym">[</span><span class="src-num">0</span><span class="src-sym">]</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a53"></a> <span class="src-var">$table </span>= <span class="src-var">$sqlPieces</span><span class="src-sym">[</span><span class="src-num">1</span><span class="src-sym">]</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a54"></a> </div></li>
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<li><div class="src-line"><a name="a55"></a> <span class="src-var">$col </span>= <a href="http://www.php.net/explode">explode</a><span class="src-sym">(</span><span class="src-str">'select'</span><span class="src-sym">, </span><span class="src-var">$select</span><span class="src-sym">)</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a56"></a> </div></li>
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<li><div class="src-line"><a name="a57"></a> <span class="src-var">$sql </span>= <span class="src-str">'WITH OFFSET AS(' </span>. <span class="src-var">$select </span>. <span class="src-str">', ROW_NUMBER() ' </span>.</div></li>
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<li><div class="src-line"><a name="a58"></a> <span class="src-str">'OVER(ORDER BY ' </span>. <span class="src-var">$col</span><span class="src-sym">[</span><span class="src-num">1</span><span class="src-sym">] </span>. <span class="src-str">') AS dctrn_rownum FROM ' </span>. <span class="src-var">$table </span>. <span class="src-str">')' </span>.</div></li>
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<li><div class="src-line"><a name="a59"></a> <span class="src-var">$select </span>. <span class="src-str">'FROM OFFSET WHERE dctrn_rownum BETWEEN ' </span>. <span class="src-var">$offset </span>.</div></li>
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<li><div class="src-line"><a name="a60"></a> <span class="src-str">'AND ' </span>. <span class="src-sym">(</span><span class="src-var">$offset </span>+ <span class="src-var">$limit </span>- <span class="src-num">1</span><span class="src-sym">)</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a61"></a> <span class="src-key">return </span><span class="src-var">$sql</span><span class="src-sym">;</span></div></li>
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<li><div class="src-line"><a name="a62"></a> <span class="src-sym">}</span></div></li>
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<li><div class="src-line"><a name="a63"></a> <span class="src-sym">}</span></div></li>
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<li><div class="src-line"><a name="a64"></a><span class="src-sym">}</span></div></li>
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</ol>
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</span></div>
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