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| Редакция | Автор | № строки | Строка |
|---|---|---|---|
| 84 | pingvin | 1 | #include "modelforpointers.h" |
| 2 | |||
| 3 | ModelForPointers::ModelForPointers(QObject *parent) : |
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| 4 | QSqlTableModel(parent) |
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| 5 | { |
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| 6 | setEditStrategy(QSqlTableModel::OnManualSubmit); |
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| 7 | } |
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| 8 | |||
| 9 | Qt::ItemFlags ModelForPointers::flags( |
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| 10 | const QModelIndex &index) const { |
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| 11 | Qt::ItemFlags flags = QSqlTableModel::flags(index); |
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| 12 | if ((index.column() != 3) && (index.column() != 0)) |
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| 13 | flags |= Qt::ItemIsEditable; |
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| 14 | //if (index.column() == 4) |
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| 15 | // flags |= Qt::ItemIsUserCheckable; |
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| 16 | else |
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| 17 | { |
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| 18 | if ((index.column() == 3) || (index.column() == 0)) flags &= ~Qt::ItemIsEditable; // |
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| 19 | } |
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| 20 | return flags; |
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| 21 | } |
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| 22 | |||
| 23 | |||
| 24 | bool ModelForPointers::setData(const QModelIndex &index, const QVariant &value, int role) { |
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| 25 | //// if (index.column()==3) return false; // |
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| 26 | bool lResult = false; |
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| 86 | pingvin | 27 | QVariant old_value; // |
| 28 | old_value = data(index); |
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| 84 | pingvin | 29 | |
| 86 | pingvin | 30 | if (index.column()==1){ // |
| 31 | QSqlQuery qu; |
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| 32 | QString old_field_name; // |
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| 33 | QString new_field_name; // |
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| 34 | QString query_str; |
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| 35 | QString type_str; // |
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| 36 | old_field_name = old_value.toString(); // ( ) |
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| 37 | new_field_name = value.toString(); |
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| 38 | // type_str = data(ModelForPointers::index(index.row(), 3)).toString(); // 3 , |
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| 39 | type_str = tr("CHAR(10)"); |
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| 84 | pingvin | 40 | |
| 86 | pingvin | 41 | query_str = tr("ALTER TABLE "); |
| 42 | query_str.append(ModelForPointers::Inctance); |
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| 43 | query_str.append(tr(" CHANGE COLUMN `")); |
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| 44 | query_str.append(old_field_name); |
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| 45 | query_str.append(tr("` `")); |
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| 46 | query_str.append(new_field_name); |
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| 47 | query_str.append(tr("` ")); |
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| 48 | query_str.append(type_str); |
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| 49 | query_str.append(tr(" CHARACTER SET cp1251 COLLATE cp1251_general_ci DEFAULT NULL")); |
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| 50 | qu.prepare(query_str); |
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| 51 | bool ok; |
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| 52 | ok = qu.exec(); |
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| 53 | if (!ok) return false; |
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| 54 | } |
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| 55 | |||
| 56 | |||
| 57 | |||
| 84 | pingvin | 58 | lResult = QSqlTableModel::setData(index, value, role); |
| 59 | if (lResult) { |
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| 60 | QModelIndex newindex; |
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| 61 | QSqlRecord rec = record(index.row()); |
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| 62 | |||
| 63 | rec.setValue(index.column(), value); |
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| 64 | rec.setGenerated(index.column(), true); |
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| 65 | |||
| 66 | |||
| 67 | lResult = updateRowInTable(index.row(), rec); |
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| 86 | pingvin | 68 | emit field_changed(); |
| 84 | pingvin | 69 | /// QSqlTableModel::setData(newindex, QVariant(str_tmp), Qt::EditRole); |
| 70 | |||
| 71 | |||
| 72 | } |
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| 73 | return lResult; |
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| 74 | } |
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| 75 | |||
| 76 | |||
| 77 | |||
| 78 | QVariant ModelForPointers::data(const QModelIndex &index, int role) const { |
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| 79 | |||
| 80 | QVariant value = QSqlTableModel::data(index, role); |
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| 81 | switch (role) { |
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| 134 | pingvin | 82 | case Qt::DisplayRole: { |
| 83 | if(index.column() == 4){ |
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| 84 | QSqlQuery q; |
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| 85 | QString sql_str; |
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| 86 | bool ok; |
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| 87 | sql_str = tr("select * from `ListOfClasses` where `ID` = "); |
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| 88 | sql_str.append(value.toString()); |
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| 89 | |||
| 90 | q.prepare(sql_str); |
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| 91 | |||
| 92 | ok = q.exec(); |
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| 93 | |||
| 94 | if (ok) { |
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| 95 | while(q.next()){ |
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| 96 | QString class_name = q.value(1).toString(); |
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| 97 | if (!class_name.isEmpty()) return class_name; |
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| 98 | |||
| 99 | } |
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| 100 | |||
| 101 | |||
| 102 | } |
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| 103 | |||
| 104 | } |
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| 105 | |||
| 106 | |||
| 107 | return value; |
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| 108 | } |
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| 109 | |||
| 110 | |||
| 111 | |||
| 84 | pingvin | 112 | case Qt::EditRole: return value; |
| 113 | case Qt::TextColorRole: |
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| 114 | if(index.column() == 1) |
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| 115 | return qVariantFromValue(QColor(Qt::blue)); |
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| 116 | else |
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| 117 | return value; |
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| 118 | case Qt::TextAlignmentRole: return value; |
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| 119 | case Qt::FontRole: |
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| 120 | if(index.column() == 1) { |
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| 121 | QFont font = QFont("Helvetica", 16, QFont::Bold); |
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| 122 | return qVariantFromValue(font); |
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| 123 | }else |
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| 124 | return value; |
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| 125 | |||
| 126 | case Qt::BackgroundColorRole: { |
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| 127 | int a = (index.row() % 2) ? 14 : 0; |
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| 128 | if(index.column() == 2) |
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| 129 | return qVariantFromValue(QColor(220,240-a,230-a)); |
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| 130 | else if(index.column() == 4) |
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| 131 | return qVariantFromValue(QColor(200,220-a,255-a)); |
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| 132 | else |
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| 133 | return value; |
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| 134 | } |
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| 135 | |||
| 136 | |||
| 137 | |||
| 138 | case Qt::CheckStateRole: return value; |
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| 139 | |||
| 140 | case Qt::SizeHintRole:return value; |
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| 141 | |||
| 142 | } |
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| 143 | return value; |
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| 144 | } |
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| 145 | |||
| 146 | void ModelForPointers::setInctance(QString currInctatce){ // - |
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| 147 | ModelForPointers::Inctance = currInctatce; |
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| 148 | } |
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| 149 | |||
| 150 | |||
| 151 | bool ModelForPointers::onlySetData(const QModelIndex &index, const QVariant &value, int role){ |
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| 152 | bool lResult = false; |
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| 153 | |||
| 154 | QSqlRecord rec = record(index.row()); |
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| 155 | rec.setValue(index.column(), value); |
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| 156 | rec.setGenerated(index.column(), true); |
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| 157 | |||
| 158 | |||
| 159 | lResult = QSqlTableModel::setData(index, value, role); |
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| 160 | if (lResult) { |
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| 161 | lResult = updateRowInTable(index.row(), rec); |
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| 162 | // emit field_changed(); |
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| 163 | /// QSqlTableModel::setData(newindex, QVariant(str_tmp), Qt::EditRole); |
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| 164 | } |
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| 165 | |||
| 166 | |||
| 167 | |||
| 168 | |||
| 169 | return lResult; |
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| 170 | |||
| 171 | } |
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| 172 | |||
| 173 |