321 lines
39 KiB
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321 lines
39 KiB
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<div id="projectname">Nut
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 <span id="projectnumber">0.1</span>
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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul>
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<div class="title">query.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**************************************************************************</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">**</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">** This file is part of Nut project.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">** https://github.com/HamedMasafi/Nut</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">**</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">** Nut is free software: you can redistribute it and/or modify</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">** it under the terms of the GNU Lesser General Public License as published by</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">** the Free Software Foundation, either version 3 of the License, or</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">** (at your option) any later version.</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">**</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">** Nut is distributed in the hope that it will be useful,</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">** but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">** GNU Lesser General Public License for more details.</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">**</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">** You should have received a copy of the GNU Lesser General Public License</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">** along with Nut. If not, see <http://www.gnu.org/licenses/>.</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">**</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">**************************************************************************/</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef QUERY_H</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#define QUERY_H</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <QtCore/QVariant></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <QtCore/QDebug></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <QtCore/QScopedPointer></span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <QtCore/QRegularExpression></span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "query_p.h"</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "database.h"</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "databasemodel.h"</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "tablesetbase_p.h"</span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "sqlgeneratorbase_p.h"</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "querybase_p.h"</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "wherephrase.h"</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> QT_BEGIN_NAMESPACE</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
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<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="class_query.html"> 40</a></span> <span class="keyword">class </span>NUT_EXPORT <a class="code" href="class_query.html" title="This class hold a query.">Query</a> : <span class="keyword">public</span> QueryBase</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  QueryPrivate *d_ptr;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  Q_DECLARE_PRIVATE(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>)</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="class_query.html" title="This class hold a query.">Query</a>(<a class="code" href="class_database.html" title="Database class.">Database</a> *database, TableSetBase *tableSet);</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  ~<a class="code" href="class_query.html" title="This class hold a query.">Query</a>();</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  QList<T *> toList(<span class="keywordtype">int</span> count = -1);</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">int</span> <span class="keyword">remove</span>();</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  T *first();</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">int</span> count();</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  QVariant max(<a class="code" href="class_field_phrase.html">FieldPhrase</a> &f);</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  QVariant min(<a class="code" href="class_field_phrase.html">FieldPhrase</a> &f);</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  QVariant average(<a class="code" href="class_field_phrase.html">FieldPhrase</a> &f){</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">//TODO: ...</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> QVariant();</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *join(<span class="keyword">const</span> QString &tableName);</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *setWhere(<a class="code" href="class_where_phrase.html">WherePhrase</a> where);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *join(<a class="code" href="class_table.html">Table</a> *c){</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  join(c->metaObject()->className());</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment">// Query<T> *setWhere(const QString &where);</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *orderBy(QString fieldName, QString type);</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *orderBy(<a class="code" href="class_where_phrase.html">WherePhrase</a> phrase);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> };</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> Q_OUTOFLINE_TEMPLATE <a class="code" href="class_query.html" title="This class hold a query.">Query<T>::Query</a>(<a class="code" href="class_database.html" title="Database class.">Database</a> *database, TableSetBase *tableSet) : QueryBase(database),</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  d_ptr(new QueryPrivate(this))</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> {</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  d->database = database;</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  d->tableSet = tableSet;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  d->tableName = d->database->tableName(T::staticMetaObject.className());</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> }</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> Q_OUTOFLINE_TEMPLATE <a class="code" href="class_query.html" title="This class hold a query.">Query<T>::~Query</a>()</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> {</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  qDebug() << <span class="stringliteral">"Query::~Query()"</span>;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">delete</span> d;</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> }</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
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<div class="line"><a name="l00095"></a><span class="lineno"><a class="code" href="class_query.html#a6c939f50425b98cc3e0d3df9e155d302"> 95</a></span> Q_OUTOFLINE_TEMPLATE QList<T *> <a class="code" href="class_query.html#a6c939f50425b98cc3e0d3df9e155d302">Query<T>::toList</a>(<span class="keywordtype">int</span> count)</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> {</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  QList<T*> result;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  d->select = <span class="stringliteral">"*"</span>;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">// QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand(d->wheres, d->orders, d->tableName, d->joinClassName));</span></div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand(</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  SqlGeneratorBase::SelectALl,</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="stringliteral">""</span>,</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  d->wheres,</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  d->orderPhrases,</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  d->tableName,</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  d->joinClassName));</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  QString pk =d->database->model().model(d->tableName)->primaryKey();</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  QVariant lastPkValue = QVariant();</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">int</span> childTypeId = 0;</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  T *lastRow = 0;</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  TableSetBase *childTableSet;</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  QStringList masterFields = d->database->model().model(d->tableName)->fieldsNames();</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  QStringList childFields;</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span>(!d->joinClassName.isNull())</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">if</span>(d->database->model().modelByClass(d->joinClassName)){</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  childFields = d->database->model().modelByClass(d->joinClassName)->fieldsNames();</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  QString joinTableName = d->database->tableName(d->joinClassName);</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  childTypeId = d->database->model().model(joinTableName)->typeId();</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">while</span> (q.next()) {</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span>(lastPkValue != q.value(pk)){</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  T *t = <span class="keyword">new</span> T();</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">foreach</span> (QString field, masterFields)</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  t->setProperty(field.toLatin1().data(), q.value(field));</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  t->setTableSet(d->tableSet);</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  t->setStatus(Table::FeatchedFromDB);</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  t->setParent(<span class="keyword">this</span>);</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  result.append(t);</div>
|
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  lastRow = t;</div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
|
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">if</span>(childTypeId){</div>
|
|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  QSet<TableSetBase*> tableSets = t->tableSets;</div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">foreach</span> (TableSetBase *ts, tableSets)</div>
|
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span>(ts->childClassName() == d->joinClassName)</div>
|
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  childTableSet = ts;</div>
|
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  }</div>
|
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  }</div>
|
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
|
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span>(childTypeId){</div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">const</span> QMetaObject *childMetaObject = QMetaType::metaObjectForType(childTypeId);</div>
|
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="class_table.html">Table</a> *childTable = qobject_cast<<a class="code" href="class_table.html">Table</a>*>(childMetaObject->newInstance());</div>
|
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
|
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">foreach</span> (QString field, childFields)</div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  childTable->setProperty(field.toLatin1().data(), q.value(field));</div>
|
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
|
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  childTable->setParent(<span class="keyword">this</span>);</div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  childTable->setParentTable(lastRow);</div>
|
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  childTable->setStatus(Table::FeatchedFromDB);</div>
|
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  childTable->setTableSet(childTableSet);</div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  childTableSet->add(childTable);</div>
|
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  lastPkValue = q.value(pk);</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">if</span>(!--count)</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">break</span>;</div>
|
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  deleteLater();</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> }</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> Q_OUTOFLINE_TEMPLATE T *<a class="code" href="class_query.html" title="This class hold a query.">Query<T>::first</a>()</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> {</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  QList<T *> list = toList(1);</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span>(list.count())</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span> list.first();</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> }</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> Q_OUTOFLINE_TEMPLATE <span class="keywordtype">int</span> <a class="code" href="class_query.html" title="This class hold a query.">Query<T>::count</a>()</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> {</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  d->select = <span class="stringliteral">"COUNT(*)"</span>;</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand(<span class="stringliteral">"COUNT(*)"</span>, d->wheres, d->orders, d->tableName, d->joinClassName));</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span>(q.next())</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">return</span> q.value(0).toInt();</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> }</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> Q_OUTOFLINE_TEMPLATE QVariant <a class="code" href="class_query.html" title="This class hold a query.">Query<T>::max</a>(<a class="code" href="class_field_phrase.html">FieldPhrase</a> &f){</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand(<span class="stringliteral">"MAX("</span> + f.data()->text + <span class="stringliteral">")"</span>, d->wheres, d->orders, d->tableName, d->joinClassName));</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">if</span>(q.next())</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> q.value(0).toInt();</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> }</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> Q_OUTOFLINE_TEMPLATE QVariant <a class="code" href="class_query.html" title="This class hold a query.">Query<T>::min</a>(<a class="code" href="class_field_phrase.html">FieldPhrase</a> &f){</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand(<span class="stringliteral">"MIN("</span> + f.data()->text + <span class="stringliteral">")"</span>, d->wheres, d->orders, d->tableName, d->joinClassName));</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">if</span>(q.next())</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">return</span> q.value(0).toInt();</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> 0;</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> }</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> Q_OUTOFLINE_TEMPLATE <span class="keywordtype">int</span> <a class="code" href="class_query.html" title="This class hold a query.">Query<T>::remove</a>()</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> {</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  QString sql = d->database->sqlGenertor()->deleteCommand(d->wheres, d->tableName);</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment">// d->_database->sqlGenertor()->deleteRecords(_tableName, queryText());</span></div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// sql = compileCommand(sql);</span></div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  QSqlQuery q = d->database->exec(sql);</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">return</span> q.numRowsAffected();</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> }</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> Q_OUTOFLINE_TEMPLATE <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *<a class="code" href="class_query.html" title="This class hold a query.">Query<T>::join</a>(<span class="keyword">const</span> QString &tableName)</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> {</div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  d->joinClassName = tableName;</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> <span class="keyword">this</span>;</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> }</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"><a class="code" href="class_query.html#ab4be37c2a469cbd549b7df9e5f415599"> 236</a></span> Q_OUTOFLINE_TEMPLATE <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *<a class="code" href="class_query.html#ab4be37c2a469cbd549b7df9e5f415599" title="Where phrase is a phrase using table's static field methods.">Query<T>::setWhere</a>(<a class="code" href="class_where_phrase.html">WherePhrase</a> where)</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> {</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  d->wheres.append(where);</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> <span class="keyword">this</span>;</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> }</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> Q_OUTOFLINE_TEMPLATE <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *<a class="code" href="class_query.html" title="This class hold a query.">Query<T>::orderBy</a>(QString fieldName, QString type)</div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> {</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  d->orders.insert(fieldName, type);</div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">return</span> <span class="keyword">this</span>;</div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> }</div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="keyword">template</span><<span class="keyword">class</span> T></div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"><a class="code" href="class_query.html#aa06b66cc9bbe9f3901215c943b94bb89"> 252</a></span> Q_OUTOFLINE_TEMPLATE <a class="code" href="class_query.html" title="This class hold a query.">Query<T></a> *<a class="code" href="class_query.html" title="This class hold a query.">Query<T>::orderBy</a>(<a class="code" href="class_where_phrase.html">WherePhrase</a> phrase)</div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> {</div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  Q_D(<a class="code" href="class_query.html" title="This class hold a query.">Query</a>);</div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  d->orderPhrases.append(phrase);</div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">return</span> <span class="keyword">this</span>;</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> }</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> QT_END_NAMESPACE</div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="preprocessor">#endif // QUERY_H</span></div>
|
|
</div><!-- fragment --></div><!-- contents -->
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