vakata /
database
| Conditions | 34 |
| Paths | 13 |
| Total Lines | 197 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
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| 102 | public function table(string $table, bool $detectRelations = true) : Table |
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| 103 | { |
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| 104 | static $tables = []; |
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| 105 | if (isset($tables[$table])) { |
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| 106 | return $tables[$table]; |
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| 107 | } |
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| 108 | |||
| 109 | static $comments = null; |
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| 110 | if (!isset($comments)) { |
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| 111 | $comments = Collection::from( |
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| 112 | $this->query( |
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| 113 | "SELECT TABLE_NAME, TABLE_COMMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = ?", |
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| 114 | [ $this->connection['name'] ] |
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| 115 | ) |
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| 116 | ) |
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| 117 | ->mapKey(function ($v) { |
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| 118 | return $v['TABLE_NAME']; |
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| 119 | }) |
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| 120 | ->pluck('TABLE_COMMENT') |
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| 121 | ->toArray(); |
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| 122 | } |
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| 123 | |||
| 124 | static $relationsT = null; |
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| 125 | static $relationsR = null; |
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| 126 | if (!isset($relationsT) || !isset($relationsR)) { |
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| 127 | $relationsT = []; |
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| 128 | $relationsR = []; |
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| 129 | $col = Collection::from( |
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| 130 | $this->query( |
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| 131 | "SELECT TABLE_NAME, COLUMN_NAME, CONSTRAINT_NAME, REFERENCED_TABLE_NAME, REFERENCED_COLUMN_NAME |
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| 132 | FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE |
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| 133 | WHERE |
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| 134 | TABLE_SCHEMA = ? AND TABLE_NAME IS NOT NULL AND |
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| 135 | REFERENCED_TABLE_SCHEMA = ? AND REFERENCED_TABLE_NAME IS NOT NULL", |
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| 136 | [ $this->connection['name'], $this->connection['name'] ] |
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| 137 | ) |
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| 138 | )->toArray(); |
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| 139 | foreach ($col as $row) { |
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| 140 | $relationsT[$row['TABLE_NAME']][] = $row; |
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| 141 | $relationsR[$row['REFERENCED_TABLE_NAME']][] = $row; |
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| 142 | } |
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| 143 | } |
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| 144 | |||
| 145 | |||
| 146 | $columns = Collection::from($this->query("SHOW FULL COLUMNS FROM {$table}")); |
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| 147 | if (!count($columns)) { |
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| 148 | throw new DBException('Table not found by name'); |
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| 149 | } |
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| 150 | $tables[$table] = $definition = (new Table($table)) |
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| 151 | ->addColumns( |
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| 152 | $columns |
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| 153 | ->clone() |
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| 154 | ->mapKey(function ($v) { return $v['Field']; }) |
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| 155 | ->map(function ($v) { |
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| 156 | $v['length'] = null; |
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| 157 | if (!isset($v['Type'])) { |
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| 158 | return $v; |
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| 159 | } |
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| 160 | $type = strtolower($v['Type']); |
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| 161 | switch ($type) { |
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| 162 | case 'tinytext': |
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| 163 | $v['length'] = 255; |
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| 164 | break; |
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| 165 | case 'text': |
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| 166 | $v['length'] = 65535; |
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| 167 | break; |
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| 168 | case 'mediumtext': |
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| 169 | $v['length'] = 16777215; |
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| 170 | break; |
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| 171 | case 'longtext': |
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| 172 | // treat this as no limit |
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| 173 | break; |
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| 174 | default: |
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| 175 | if (strpos($type, 'char') !== false && strpos($type, '(') !== false) { |
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| 176 | // extract length from varchar |
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| 177 | $v['length'] = (int)explode(')', explode('(', $type)[1])[0]; |
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| 178 | $v['length'] = $v['length'] > 0 ? $v['length'] : null; |
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| 179 | } |
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| 180 | break; |
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| 181 | } |
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| 182 | return $v; |
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| 183 | }) |
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| 184 | ->toArray() |
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| 185 | ) |
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| 186 | ->setPrimaryKey( |
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| 187 | $columns |
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| 188 | ->clone() |
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| 189 | ->filter(function ($v) { return $v['Key'] === 'PRI'; }) |
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| 190 | ->pluck('Field') |
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| 191 | ->toArray() |
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| 192 | ) |
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| 193 | ->setComment($comments[$table] ?? ''); |
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| 194 | |||
| 195 | if ($detectRelations) { |
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| 196 | // relations where the current table is referenced |
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| 197 | // assuming current table is on the "one" end having "many" records in the referencing table |
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| 198 | // resulting in a "hasMany" or "manyToMany" relationship (if a pivot table is detected) |
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| 199 | $relations = []; |
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| 200 | foreach ($relationsR[$table] ?? [] as $relation) { |
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| 201 | $relations[$relation['CONSTRAINT_NAME']]['table'] = $relation['TABLE_NAME']; |
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| 202 | $relations[$relation['CONSTRAINT_NAME']]['keymap'][$relation['REFERENCED_COLUMN_NAME']] = $relation['COLUMN_NAME']; |
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| 203 | } |
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| 204 | foreach ($relations as $data) { |
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| 205 | $rtable = $this->table($data['table'], true); |
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| 206 | $columns = []; |
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| 207 | foreach ($rtable->getColumns() as $column) { |
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| 208 | if (!in_array($column, $data['keymap'])) { |
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| 209 | $columns[] = $column; |
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| 210 | } |
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| 211 | } |
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| 212 | $foreign = []; |
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| 213 | $usedcol = []; |
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| 214 | if (count($columns)) { |
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| 215 | foreach (Collection::from($relationsT[$data['table']] ?? []) |
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| 216 | ->filter(function ($v) use ($columns) { |
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| 217 | return in_array($v['COLUMN_NAME'], $columns); |
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| 218 | }) |
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| 219 | ->map(function ($v) { |
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| 220 | $new = []; |
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| 221 | foreach ($v as $kk => $vv) { |
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| 222 | $new[strtoupper($kk)] = $vv; |
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| 223 | } |
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| 224 | return $new; |
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| 225 | }) as $relation |
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| 226 | ) { |
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| 227 | $foreign[$relation['CONSTRAINT_NAME']]['table'] = $relation['REFERENCED_TABLE_NAME']; |
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| 228 | $foreign[$relation['CONSTRAINT_NAME']]['keymap'][$relation['COLUMN_NAME']] = $relation['REFERENCED_COLUMN_NAME']; |
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| 229 | $usedcol[] = $relation['COLUMN_NAME']; |
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| 230 | } |
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| 231 | } |
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| 232 | if (count($foreign) === 1 && !count(array_diff($columns, $usedcol))) { |
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| 233 | $foreign = current($foreign); |
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| 234 | $relname = $foreign['table']; |
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| 235 | $cntr = 1; |
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| 236 | while ($definition->hasRelation($relname) || $definition->getName() == $relname) { |
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| 237 | $relname = $foreign['table'] . '_' . (++ $cntr); |
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| 238 | } |
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| 239 | $definition->addRelation( |
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| 240 | new TableRelation( |
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| 241 | $relname, |
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| 242 | $this->table($foreign['table'], true), |
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| 243 | $data['keymap'], |
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| 244 | true, |
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| 245 | $rtable, |
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| 246 | $foreign['keymap'] |
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| 247 | ) |
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| 248 | ); |
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| 249 | } else { |
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| 250 | $relname = $data['table']; |
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| 251 | $cntr = 1; |
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| 252 | while ($definition->hasRelation($relname) || $definition->getName() == $relname) { |
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| 253 | $relname = $data['table'] . '_' . (++ $cntr); |
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| 254 | } |
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| 255 | $definition->addRelation( |
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| 256 | new TableRelation( |
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| 257 | $relname, |
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| 258 | $this->table($data['table'], true), |
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| 259 | $data['keymap'], |
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| 260 | true |
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| 261 | ) |
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| 262 | ); |
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| 263 | } |
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| 264 | } |
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| 265 | // relations where the current table references another table |
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| 266 | // assuming current table is linked to "one" record in the referenced table |
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| 267 | // resulting in a "belongsTo" relationship |
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| 268 | $relations = []; |
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| 269 | foreach (Collection::from($relationsT[$table] ?? []) |
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| 270 | ->map(function ($v) { |
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| 271 | $new = []; |
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| 272 | foreach ($v as $kk => $vv) { |
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| 273 | $new[strtoupper($kk)] = $vv; |
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| 274 | } |
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| 275 | return $new; |
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| 276 | }) as $relation |
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| 277 | ) { |
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| 278 | $relations[$relation['CONSTRAINT_NAME']]['table'] = $relation['REFERENCED_TABLE_NAME']; |
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| 279 | $relations[$relation['CONSTRAINT_NAME']]['keymap'][$relation['COLUMN_NAME']] = $relation['REFERENCED_COLUMN_NAME']; |
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| 280 | } |
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| 281 | foreach ($relations as $name => $data) { |
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| 282 | $relname = $data['table']; |
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| 283 | $cntr = 1; |
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| 284 | while ($definition->hasRelation($relname) || $definition->getName() == $relname) { |
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| 285 | $relname = $data['table'] . '_' . (++ $cntr); |
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| 286 | } |
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| 287 | $definition->addRelation( |
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| 288 | new TableRelation( |
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| 289 | $relname, |
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| 290 | $this->table($data['table'], true), |
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| 291 | $data['keymap'], |
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| 292 | false |
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| 293 | ) |
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| 294 | ); |
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| 295 | } |
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| 296 | } |
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| 297 | return $definition->toLowerCase(); |
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| 298 | } |
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| 299 | public function tables() : array |
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| 319 | } |
