XOOPS /
XoopsCore25
| Total Complexity | 131 |
| Total Lines | 975 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Tables often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Tables, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 34 | class Tables |
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| 35 | { |
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| 36 | /** |
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| 37 | * @var \XoopsDatabase |
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| 38 | */ |
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| 39 | protected $db; |
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| 40 | |||
| 41 | /** |
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| 42 | * @var string |
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| 43 | */ |
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| 44 | protected $databaseName; |
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| 45 | |||
| 46 | /** |
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| 47 | * @var array Tables |
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| 48 | */ |
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| 49 | protected $tables; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var array Work queue |
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| 53 | */ |
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| 54 | protected $queue; |
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| 55 | |||
| 56 | /** |
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| 57 | * @var string last error message |
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| 58 | */ |
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| 59 | protected $lastError; |
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| 60 | |||
| 61 | /** |
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| 62 | * @var int last error number |
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| 63 | */ |
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| 64 | protected $lastErrNo; |
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| 65 | |||
| 66 | /** |
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| 67 | * Constructor |
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| 68 | * |
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| 69 | */ |
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| 70 | public function __construct() |
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| 71 | { |
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| 72 | Language::load('xmf'); |
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| 73 | |||
| 74 | $this->db = \XoopsDatabaseFactory::getDatabaseConnection(); |
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| 75 | $this->databaseName = XOOPS_DB_NAME; |
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| 76 | $this->resetQueue(); |
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| 77 | } |
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| 78 | |||
| 79 | /** |
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| 80 | * Return a table name, prefixed with site table prefix |
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| 81 | * |
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| 82 | * @param string $table table name to contain prefix |
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| 83 | * |
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| 84 | * @return string table name with prefix |
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| 85 | */ |
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| 86 | protected function name($table) |
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| 89 | } |
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| 90 | |||
| 91 | /** |
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| 92 | * Add new column for table to the work queue |
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| 93 | * |
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| 94 | * @param string $table table to contain the column |
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| 95 | * @param string $column name of column to add |
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| 96 | * @param string $attributes column_definition |
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| 97 | * |
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| 98 | * @return bool true if no errors, false if errors encountered |
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| 99 | */ |
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| 100 | public function addColumn($table, $column, $attributes) |
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| 101 | { |
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| 102 | $columnDef = array( |
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| 103 | 'name' => $column, |
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| 104 | 'attributes' => $attributes |
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| 105 | ); |
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| 106 | |||
| 107 | // Find table def. |
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| 108 | if (isset($this->tables[$table])) { |
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| 109 | $tableDef = &$this->tables[$table]; |
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| 110 | // Is this on a table we are adding? |
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| 111 | if (isset($tableDef['create']) && $tableDef['create']) { |
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| 112 | array_push($tableDef['columns'], $columnDef); |
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| 113 | } else { |
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| 114 | foreach ($tableDef['columns'] as $col) { |
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| 115 | if (strcasecmp($col['name'], $column) == 0) { |
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| 116 | return true; |
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| 117 | } |
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| 118 | } |
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| 119 | $this->queue[] = "ALTER TABLE `{$tableDef['name']}`" |
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| 120 | . " ADD COLUMN `{$column}` {$columnDef['attributes']}"; |
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| 121 | array_push($tableDef['columns'], $columnDef); |
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| 122 | } |
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| 123 | } else { |
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| 124 | return $this->tableNotEstablished(); |
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| 125 | } |
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| 126 | |||
| 127 | return true; // exists or is added to queue |
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| 128 | } |
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| 129 | |||
| 130 | /** |
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| 131 | * Add new primary key definition for table to work queue |
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| 132 | * |
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| 133 | * @param string $table table |
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| 134 | * @param string $column column or comma separated list of columns |
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| 135 | * to use as primary key |
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| 136 | * |
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| 137 | * @return bool true if no errors, false if errors encountered |
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| 138 | */ |
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| 139 | public function addPrimaryKey($table, $column) |
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| 159 | } |
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| 160 | |||
| 161 | /** |
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| 162 | * Add new index definition for index to work queue |
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| 163 | * |
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| 164 | * @param string $name name of index to add |
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| 165 | * @param string $table table indexed |
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| 166 | * @param string $column column or a comma separated list of columns |
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| 167 | * to use as the key |
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| 168 | * @param bool $unique true if index is to be unique |
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| 169 | * |
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| 170 | * @return bool true if no errors, false if errors encountered |
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| 171 | */ |
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| 172 | public function addIndex($name, $table, $column, $unique = false) |
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| 194 | } |
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| 195 | |||
| 196 | /** |
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| 197 | * Backtick quote the column names used in index creation. |
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| 198 | * |
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| 199 | * Handles prefix indexed columns specified as name(length) - i.e. name(20). |
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| 200 | * |
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| 201 | * @param string $columnName column name to quote with optional prefix length |
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| 202 | * |
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| 203 | * @return string |
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| 204 | */ |
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| 205 | protected function quoteIndexColumnName($columnName) |
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| 206 | { |
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| 207 | $column = str_replace(' ', '', $columnName); |
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| 208 | $length = ''; |
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| 209 | |||
| 210 | $lengthPosition = strpos($column, '('); |
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| 211 | if ($lengthPosition) { |
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| 212 | $length = ' ' . substr($column, $lengthPosition); |
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| 213 | $column = substr($column, 0, $lengthPosition); |
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| 214 | } |
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| 215 | $quotedName = "`{$column}`{$length}"; |
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| 216 | |||
| 217 | return $quotedName; |
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| 218 | } |
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| 219 | |||
| 220 | /** |
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| 221 | * Load table schema from database, or starts new empty schema if |
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| 222 | * table does not exist |
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| 223 | * |
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| 224 | * @param string $table table |
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| 225 | * |
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| 226 | * @return bool true if no errors, false if errors encountered |
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| 227 | */ |
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| 228 | public function addTable($table) |
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| 229 | { |
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| 230 | if (isset($this->tables[$table])) { |
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| 231 | return true; |
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| 232 | } |
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| 233 | $tableDef = $this->getTable($table); |
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| 234 | if (is_array($tableDef)) { |
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| 235 | $this->tables[$table] = $tableDef; |
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| 236 | |||
| 237 | return true; |
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| 238 | } else { |
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| 239 | if ($tableDef === true) { |
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| 240 | $tableDef = array( |
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| 241 | 'name' => $this->name($table), |
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| 242 | 'options' => 'ENGINE=InnoDB', |
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| 243 | 'columns' => array(), |
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| 244 | 'keys' => array(), |
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| 245 | 'create' => true, |
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| 246 | ); |
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| 247 | $this->tables[$table] = $tableDef; |
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| 248 | |||
| 249 | $this->queue[] = array('createtable' => $table); |
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| 250 | |||
| 251 | return true; |
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| 252 | } else { |
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| 253 | return false; |
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| 254 | } |
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| 255 | } |
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| 256 | } |
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| 257 | |||
| 258 | /** |
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| 259 | * AddTable only if it exists |
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| 260 | * |
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| 261 | * @param string $table table |
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| 262 | * |
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| 263 | * @return bool true if table exists, false otherwise |
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| 264 | */ |
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| 265 | public function useTable($table) |
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| 266 | { |
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| 267 | if (isset($this->tables[$table])) { |
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| 268 | return true; |
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| 269 | } |
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| 270 | $tableDef = $this->getTable($table); |
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| 271 | if (is_array($tableDef)) { |
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| 272 | $this->tables[$table] = $tableDef; |
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| 273 | return true; |
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| 274 | } |
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| 275 | return false; |
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| 276 | } |
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| 277 | |||
| 278 | /** |
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| 279 | * Get column attributes |
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| 280 | * |
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| 281 | * @param string $table table containing the column |
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| 282 | * @param string $column column to alter |
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| 283 | * |
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| 284 | * @return string|false attribute string, or false if error encountered |
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| 285 | */ |
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| 286 | public function getColumnAttributes($table, $column) |
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| 287 | { |
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| 288 | // Find table def. |
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| 289 | if (isset($this->tables[$table])) { |
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| 290 | $tableDef = $this->tables[$table]; |
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| 291 | // loop through and find the column |
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| 292 | foreach ($tableDef['columns'] as $col) { |
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| 293 | if (strcasecmp($col['name'], $column) === 0) { |
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| 294 | return $col['attributes']; |
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| 295 | } |
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| 296 | } |
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| 297 | } |
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| 298 | |||
| 299 | return false; |
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| 300 | } |
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| 301 | |||
| 302 | /** |
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| 303 | * Get indexes for a table |
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| 304 | * |
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| 305 | * @param string $table get indexes for this named table |
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| 306 | * |
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| 307 | * @return array|false array of indexes, or false if error encountered |
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| 308 | */ |
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| 309 | public function getTableIndexes($table) |
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| 310 | { |
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| 311 | // Find table def. |
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| 312 | if (isset($this->tables[$table]) && isset($this->tables[$table]['keys'])) { |
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| 313 | return $this->tables[$table]['keys']; |
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| 314 | } |
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| 315 | |||
| 316 | return false; |
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| 317 | } |
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| 318 | |||
| 319 | /** |
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| 320 | * Add alter column operation to the work queue |
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| 321 | * |
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| 322 | * @param string $table table containing the column |
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| 323 | * @param string $column column to alter |
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| 324 | * @param string $attributes new column_definition |
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| 325 | * @param string $newName new name for column, blank to keep same |
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| 326 | * |
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| 327 | * @return bool true if no errors, false if errors encountered |
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| 328 | */ |
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| 329 | public function alterColumn($table, $column, $attributes, $newName = '') |
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| 330 | { |
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| 331 | if (empty($newName)) { |
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| 332 | $newName = $column; |
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| 333 | } |
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| 334 | // Find table def. |
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| 335 | if (isset($this->tables[$table])) { |
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| 336 | $tableDef = &$this->tables[$table]; |
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| 337 | // Is this on a table we are adding? |
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| 338 | if (isset($tableDef['create']) && $tableDef['create']) { |
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| 339 | // loop through and find the column |
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| 340 | foreach ($tableDef['columns'] as &$col) { |
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| 341 | if (strcasecmp($col['name'], $column) == 0) { |
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| 342 | $col['name'] = $newName; |
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| 343 | $col['attributes'] = $attributes; |
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| 344 | break; |
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| 345 | } |
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| 346 | } |
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| 347 | |||
| 348 | return true; |
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| 349 | } else { |
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| 350 | $this->queue[] = "ALTER TABLE `{$tableDef['name']}` " . |
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| 351 | "CHANGE COLUMN `{$column}` `{$newName}` {$attributes} "; |
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| 352 | // loop through and find the column |
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| 353 | foreach ($tableDef['columns'] as &$col) { |
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| 354 | if (strcasecmp($col['name'], $column) == 0) { |
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| 355 | $col['name'] = $newName; |
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| 356 | $col['attributes'] = $attributes; |
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| 357 | break; |
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| 358 | } |
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| 359 | } |
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| 360 | } |
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| 361 | } else { |
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| 362 | return $this->tableNotEstablished(); |
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| 363 | } |
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| 364 | |||
| 365 | return true; |
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| 366 | } |
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| 367 | |||
| 368 | /** |
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| 369 | * Loads table schema from database, and adds newTable with that |
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| 370 | * schema to the queue |
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| 371 | * |
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| 372 | * @param string $table existing table |
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| 373 | * @param string $newTable new table |
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| 374 | * @param bool $withData true to copy data, false for schema only |
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| 375 | * |
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| 376 | * @return bool true if no errors, false if errors encountered |
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| 377 | */ |
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| 378 | public function copyTable($table, $newTable, $withData = false) |
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| 379 | { |
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| 380 | if (isset($this->tables[$newTable])) { |
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| 381 | return true; |
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| 382 | } |
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| 383 | $tableDef = $this->getTable($table); |
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| 384 | $copy = $this->name($newTable); |
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| 385 | $original = $this->name($table); |
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| 386 | |||
| 387 | if (is_array($tableDef)) { |
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| 388 | $tableDef['name'] = $copy; |
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| 389 | if ($withData) { |
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| 390 | $this->queue[] = "CREATE TABLE `{$copy}` LIKE `{$original}` ;"; |
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| 391 | $this->queue[] = "INSERT INTO `{$copy}` SELECT * FROM `{$original}` ;"; |
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| 392 | } else { |
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| 393 | $tableDef['create'] = true; |
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| 394 | $this->queue[] = array('createtable' => $newTable); |
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| 395 | } |
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| 396 | $this->tables[$newTable] = $tableDef; |
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| 397 | |||
| 398 | return true; |
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| 399 | } else { |
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| 400 | return false; |
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| 401 | } |
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| 402 | } |
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| 403 | |||
| 404 | /** |
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| 405 | * Add drop column operation to the work queue |
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| 406 | * |
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| 407 | * @param string $table table containing the column |
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| 408 | * @param string $column column to drop |
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| 409 | * |
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| 410 | * @return bool true if no errors, false if errors encountered |
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| 411 | */ |
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| 412 | public function dropColumn($table, $column) |
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| 413 | { |
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| 414 | // Find table def. |
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| 415 | if (isset($this->tables[$table])) { |
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| 416 | $tableDef = $this->tables[$table]; |
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| 417 | $this->queue[] = "ALTER TABLE `{$tableDef['name']}` DROP COLUMN `{$column}`"; |
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| 418 | } else { |
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| 419 | return $this->tableNotEstablished(); |
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| 420 | } |
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| 421 | |||
| 422 | return true; |
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| 423 | } |
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| 424 | |||
| 425 | /** |
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| 426 | * Add drop index operation to the work queue |
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| 427 | * |
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| 428 | * @param string $name name of index to drop |
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| 429 | * @param string $table table indexed |
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| 430 | * |
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| 431 | * @return bool true if no errors, false if errors encountered |
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| 432 | */ |
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| 433 | public function dropIndex($name, $table) |
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| 434 | { |
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| 435 | if (isset($this->tables[$table])) { |
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| 436 | $tableDef = $this->tables[$table]; |
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| 437 | $this->queue[] = "ALTER TABLE `{$tableDef['name']}` DROP INDEX `{$name}`"; |
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| 438 | } else { |
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| 439 | return $this->tableNotEstablished(); |
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| 440 | } |
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| 441 | |||
| 442 | return true; |
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| 443 | } |
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| 444 | |||
| 445 | /** |
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| 446 | * Add drop for all (non-PRIMARY) keys for a table to the work |
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| 447 | * queue. This can be used to clean up indexes with automatic names. |
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| 448 | * |
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| 449 | * @param string $table table indexed |
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| 450 | * |
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| 451 | * @return bool true if no errors, false if errors encountered |
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| 452 | */ |
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| 453 | public function dropIndexes($table) |
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| 479 | } |
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| 480 | |||
| 481 | /** |
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| 482 | * Add drop of PRIMARY key for a table to the work queue |
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| 483 | * |
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| 484 | * @param string $table table |
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| 485 | * |
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| 486 | * @return bool true if no errors, false if errors encountered |
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| 487 | */ |
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| 488 | public function dropPrimaryKey($table) |
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| 489 | { |
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| 490 | if (isset($this->tables[$table])) { |
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| 491 | $tableDef = $this->tables[$table]; |
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| 492 | $this->queue[] = "ALTER TABLE `{$tableDef['name']}` DROP PRIMARY KEY "; |
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| 493 | } else { |
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| 494 | return $this->tableNotEstablished(); |
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| 495 | } |
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| 496 | |||
| 497 | return true; |
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| 498 | } |
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| 499 | |||
| 500 | /** |
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| 501 | * Add drop of table to the work queue |
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| 502 | * |
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| 503 | * @param string $table table |
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| 504 | * |
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| 505 | * @return bool true if no errors, false if errors encountered |
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| 506 | */ |
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| 507 | public function dropTable($table) |
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| 516 | } |
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| 517 | |||
| 518 | |||
| 519 | /** |
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| 520 | * Add rename table operation to the work queue |
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| 521 | * |
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| 522 | * @param string $table table |
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| 523 | * @param string $newName new table name |
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| 524 | * |
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| 525 | * @return bool true if no errors, false if errors encountered |
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| 526 | */ |
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| 527 | public function renameTable($table, $newName) |
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| 528 | { |
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| 529 | if (isset($this->tables[$table])) { |
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| 530 | $tableDef = $this->tables[$table]; |
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| 531 | $newTable = $this->name($newName); |
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| 532 | $this->queue[] = "ALTER TABLE `{$tableDef['name']}` RENAME TO `{$newTable}`"; |
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| 533 | $tableDef['name'] = $newTable; |
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| 534 | $this->tables[$newName] = $tableDef; |
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| 535 | unset($this->tables[$table]); |
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| 536 | } else { |
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| 537 | return $this->tableNotEstablished(); |
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| 538 | } |
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| 539 | |||
| 540 | return true; |
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| 541 | } |
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| 542 | |||
| 543 | /** |
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| 544 | * Add alter table table_options (ENGINE, DEFAULT CHARSET, etc.) |
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| 545 | * to work queue |
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| 546 | * |
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| 547 | * @param string $table table |
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| 548 | * @param string $options table_options |
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| 549 | * |
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| 550 | * @return bool true if no errors, false if errors encountered |
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| 551 | */ |
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| 552 | public function setTableOptions($table, $options) |
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| 553 | { |
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| 554 | if (isset($this->tables[$table])) { |
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| 555 | $tableDef = &$this->tables[$table]; |
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| 556 | // Is this on a table we are adding? |
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| 557 | if (isset($tableDef['create']) && $tableDef['create']) { |
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| 558 | $tableDef['options'] = $options; |
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| 559 | return true; |
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| 560 | } else { |
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| 561 | $this->queue[] = "ALTER TABLE `{$tableDef['name']}` {$options} "; |
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| 562 | $tableDef['options'] = $options; |
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| 563 | return true; |
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| 564 | } |
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| 565 | } else { |
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| 566 | return $this->tableNotEstablished(); |
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| 567 | } |
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| 568 | } |
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| 569 | |||
| 570 | |||
| 571 | /** |
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| 572 | * Clear the work queue |
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| 573 | * |
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| 574 | * @return void |
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| 575 | */ |
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| 576 | public function resetQueue() |
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| 577 | { |
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| 578 | $this->tables = array(); |
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| 579 | $this->queue = array(); |
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| 580 | } |
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| 581 | |||
| 582 | /** |
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| 583 | * Executes the work queue |
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| 584 | * |
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| 585 | * @param bool $force true to force updates even if this is a 'GET' request |
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| 586 | * |
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| 587 | * @return bool true if no errors, false if errors encountered |
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| 588 | */ |
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| 589 | public function executeQueue($force = false) |
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| 590 | { |
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| 591 | $this->expandQueue(); |
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| 592 | foreach ($this->queue as &$ddl) { |
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| 593 | if (is_array($ddl)) { |
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| 594 | if (isset($ddl['createtable'])) { |
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| 595 | $ddl = $this->renderTableCreate($ddl['createtable']); |
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| 596 | } |
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| 597 | } |
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| 598 | $result = $this->execSql($ddl, $force); |
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|
Bug
introduced
by
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| 599 | if (!$result) { |
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| 600 | $this->lastError = $this->db->error(); |
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| 601 | $this->lastErrNo = $this->db->errno(); |
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| 602 | |||
| 603 | return false; |
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| 604 | } |
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| 605 | } |
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| 606 | |||
| 607 | return true; |
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| 608 | } |
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| 609 | |||
| 610 | |||
| 611 | /** |
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| 612 | * Create a DELETE statement and add it to the work queue |
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| 613 | * |
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| 614 | * @param string $table table |
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| 615 | * @param string|CriteriaElement $criteria string where clause or object criteria |
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| 616 | * |
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| 617 | * @return bool true if no errors, false if errors encountered |
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| 618 | */ |
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| 619 | public function delete($table, $criteria) |
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| 620 | { |
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| 621 | if (isset($this->tables[$table])) { |
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| 622 | $tableDef = $this->tables[$table]; |
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| 623 | $where = ''; |
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| 624 | if (is_scalar($criteria)) { |
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| 625 | $where = $criteria; |
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| 626 | } elseif (is_object($criteria)) { |
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| 627 | /** @var \CriteriaCompo $criteria */ |
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| 628 | $where = $criteria->renderWhere(); |
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| 629 | } |
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| 630 | $this->queue[] = "DELETE FROM `{$tableDef['name']}` {$where}"; |
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| 631 | } else { |
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| 632 | return $this->tableNotEstablished(); |
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| 633 | } |
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| 634 | |||
| 635 | return true; |
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| 636 | } |
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| 637 | |||
| 638 | /** |
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| 639 | * Create an INSERT SQL statement and add it to the work queue. |
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| 640 | * |
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| 641 | * @param string $table table |
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| 642 | * @param array $columns array of 'column'=>'value' entries |
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| 643 | * @param boolean $quoteValue true to quote values, false if caller handles quoting |
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| 644 | * |
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| 645 | * @return boolean true if no errors, false if errors encountered |
||
| 646 | */ |
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| 647 | public function insert($table, $columns, $quoteValue = true) |
||
| 667 | } |
||
| 668 | } |
||
| 669 | |||
| 670 | /** |
||
| 671 | * Create an UPDATE SQL statement and add it to the work queue |
||
| 672 | * |
||
| 673 | * @param string $table table |
||
| 674 | * @param array $columns array of 'column'=>'value' entries |
||
| 675 | * @param string|CriteriaElement $criteria string where clause or object criteria |
||
| 676 | * @param boolean $quoteValue true to quote values, false if caller handles quoting |
||
| 677 | * |
||
| 678 | * @return boolean true if no errors, false if errors encountered |
||
| 679 | */ |
||
| 680 | public function update($table, $columns, $criteria, $quoteValue = true) |
||
| 681 | { |
||
| 682 | if (isset($this->tables[$table])) { |
||
| 683 | $tableDef = $this->tables[$table]; |
||
| 684 | $where = ''; |
||
| 685 | if (is_scalar($criteria)) { |
||
| 686 | $where = $criteria; |
||
| 687 | } elseif (is_object($criteria)) { |
||
| 688 | /** @var \CriteriaCompo $criteria */ |
||
| 689 | $where = $criteria->renderWhere(); |
||
| 690 | } |
||
| 691 | $colSql = ''; |
||
| 692 | foreach ($tableDef['columns'] as $col) { |
||
| 693 | $comma = empty($colSql) ? '' : ', '; |
||
| 694 | if (isset($columns[$col['name']])) { |
||
| 695 | $colSql .= "{$comma}`{$col['name']}` = " |
||
| 696 | . ($quoteValue ? $this->db->quote($columns[$col['name']]) : $columns[$col['name']]); |
||
| 697 | } |
||
| 698 | } |
||
| 699 | $sql = "UPDATE `{$tableDef['name']}` SET {$colSql} {$where}"; |
||
| 700 | $this->queue[] = $sql; |
||
| 701 | |||
| 702 | return true; |
||
| 703 | } else { |
||
| 704 | return $this->tableNotEstablished(); |
||
| 705 | } |
||
| 706 | } |
||
| 707 | |||
| 708 | /** |
||
| 709 | * Add statement to remove all rows from a table to the work queue |
||
| 710 | * |
||
| 711 | * @param string $table table |
||
| 712 | * |
||
| 713 | * @return bool true if no errors, false if errors encountered |
||
| 714 | */ |
||
| 715 | public function truncate($table) |
||
| 716 | { |
||
| 717 | if (isset($this->tables[$table])) { |
||
| 718 | $tableDef = $this->tables[$table]; |
||
| 719 | $this->queue[] = "TRUNCATE TABLE `{$tableDef['name']}`"; |
||
| 720 | } else { |
||
| 721 | return $this->tableNotEstablished(); |
||
| 722 | } |
||
| 723 | |||
| 724 | return true; |
||
| 725 | } |
||
| 726 | |||
| 727 | |||
| 728 | |||
| 729 | /** |
||
| 730 | * return SQL to create the table |
||
| 731 | * |
||
| 732 | * This method does NOT modify the work queue |
||
| 733 | * |
||
| 734 | * @param string $table table |
||
| 735 | * @param bool $prefixed true to return with table name prefixed |
||
| 736 | * |
||
| 737 | * @return string|false string SQL to create table, or false if errors encountered |
||
| 738 | */ |
||
| 739 | protected function renderTableCreate($table, $prefixed = false) |
||
| 765 | } |
||
| 766 | } |
||
| 767 | |||
| 768 | /** |
||
| 769 | * execute an SQL statement |
||
| 770 | * |
||
| 771 | * @param string $sql SQL statement to execute |
||
| 772 | * @param bool $force true to use force updates even in safe requests |
||
| 773 | * |
||
| 774 | * @return mixed result resource if no error, |
||
| 775 | * true if no error but no result |
||
| 776 | * false if error encountered. |
||
| 777 | * Any error message is in $this->lastError; |
||
| 778 | */ |
||
| 779 | protected function execSql($sql, $force = false) |
||
| 780 | { |
||
| 781 | if ($force) { |
||
| 782 | $result = $this->db->queryF($sql); |
||
| 783 | } else { |
||
| 784 | $result = $this->db->query($sql); |
||
| 785 | } |
||
| 786 | |||
| 787 | if (!$result) { |
||
| 788 | $this->lastError = $this->db->error(); |
||
| 789 | $this->lastErrNo = $this->db->errno(); |
||
| 790 | } |
||
| 791 | |||
| 792 | return $result; |
||
| 793 | } |
||
| 794 | |||
| 795 | /** |
||
| 796 | * fetch the next row of a result set |
||
| 797 | * |
||
| 798 | * @param resource $result as returned by query |
||
| 799 | * |
||
| 800 | * @return mixed false on error |
||
| 801 | */ |
||
| 802 | protected function fetch($result) |
||
| 805 | } |
||
| 806 | |||
| 807 | /** |
||
| 808 | * create default value clause for DDL |
||
| 809 | * |
||
| 810 | * @param string|null $default the default value to be quoted |
||
| 811 | * |
||
| 812 | * @return string the correctly quoted default value |
||
| 813 | */ |
||
| 814 | protected function quoteDefaultClause($default) |
||
| 815 | { |
||
| 816 | // . (($column['COLUMN_DEFAULT'] === null) ? '' : " DEFAULT '" . $column['COLUMN_DEFAULT'] . "' ") |
||
| 817 | // no default specified |
||
| 818 | if (null===$default) { |
||
| 819 | return ''; |
||
| 820 | } |
||
| 821 | |||
| 822 | // functions should not be quoted |
||
| 823 | // this section will need expanded when XOOPS minimum is no longer a mysql 5 version |
||
| 824 | // Until mysql 8, only allowed function is CURRENT_TIMESTAMP |
||
| 825 | if ($default === 'CURRENT_TIMESTAMP') { |
||
| 826 | return ' DEFAULT CURRENT_TIMESTAMP '; |
||
| 827 | } |
||
| 828 | |||
| 829 | // surround default with quotes |
||
| 830 | return " DEFAULT '{$default}' "; |
||
| 831 | } |
||
| 832 | |||
| 833 | /** |
||
| 834 | * get table definition from INFORMATION_SCHEMA |
||
| 835 | * |
||
| 836 | * @param string $table table |
||
| 837 | * |
||
| 838 | * @return array|bool table definition array if table exists, true if table not defined, or |
||
| 839 | * false on error. Error message in $this->lastError; |
||
| 840 | */ |
||
| 841 | protected function getTable($table) |
||
| 842 | { |
||
| 843 | $tableDef = array(); |
||
| 844 | |||
| 845 | $sql = 'SELECT TABLE_NAME, ENGINE, CHARACTER_SET_NAME '; |
||
| 846 | $sql .= ' FROM `INFORMATION_SCHEMA`.`TABLES` t, '; |
||
| 847 | $sql .= ' `INFORMATION_SCHEMA`.`COLLATIONS` c '; |
||
| 848 | $sql .= ' WHERE t.TABLE_SCHEMA = \'' . $this->databaseName . '\' '; |
||
| 849 | $sql .= ' AND t.TABLE_NAME = \'' . $this->name($table) . '\' '; |
||
| 850 | $sql .= ' AND t.TABLE_COLLATION = c.COLLATION_NAME '; |
||
| 851 | |||
| 852 | $result = $this->execSql($sql); |
||
| 853 | if (!$result) { |
||
| 854 | return false; |
||
| 855 | } |
||
| 856 | $tableSchema = $this->fetch($result); |
||
| 857 | if (empty($tableSchema)) { |
||
| 858 | return true; |
||
| 859 | } |
||
| 860 | $tableDef['name'] = $tableSchema['TABLE_NAME']; |
||
| 861 | $tableDef['options'] = 'ENGINE=' . $tableSchema['ENGINE'] . ' ' |
||
| 862 | . 'DEFAULT CHARSET=' . $tableSchema['CHARACTER_SET_NAME']; |
||
| 863 | |||
| 864 | $sql = 'SELECT * '; |
||
| 865 | $sql .= ' FROM `INFORMATION_SCHEMA`.`COLUMNS` '; |
||
| 866 | $sql .= ' WHERE TABLE_SCHEMA = \'' . $this->databaseName . '\' '; |
||
| 867 | $sql .= ' AND TABLE_NAME = \'' . $this->name($table) . '\' '; |
||
| 868 | $sql .= ' ORDER BY `ORDINAL_POSITION` '; |
||
| 869 | |||
| 870 | $result = $this->execSql($sql); |
||
| 871 | |||
| 872 | while ($column = $this->fetch($result)) { |
||
| 873 | $attributes = ' ' . $column['COLUMN_TYPE'] . ' ' |
||
| 874 | . (($column['IS_NULLABLE'] === 'NO') ? ' NOT NULL ' : '') |
||
| 875 | . $this->quoteDefaultClause($column['COLUMN_DEFAULT']) |
||
| 876 | //. $column['EXTRA']; |
||
| 877 | . str_replace('DEFAULT_GENERATED ', '', $column['EXTRA']); |
||
| 878 | |||
| 879 | $columnDef = array( |
||
| 880 | 'name' => $column['COLUMN_NAME'], |
||
| 881 | 'attributes' => $attributes |
||
| 882 | ); |
||
| 883 | |||
| 884 | $tableDef['columns'][] = $columnDef; |
||
| 885 | }; |
||
| 886 | |||
| 887 | $sql = 'SELECT `INDEX_NAME`, `SEQ_IN_INDEX`, `NON_UNIQUE`, '; |
||
| 888 | $sql .= ' `COLUMN_NAME`, `SUB_PART` '; |
||
| 889 | $sql .= ' FROM `INFORMATION_SCHEMA`.`STATISTICS` '; |
||
| 890 | $sql .= ' WHERE TABLE_SCHEMA = \'' . $this->databaseName . '\' '; |
||
| 891 | $sql .= ' AND TABLE_NAME = \'' . $this->name($table) . '\' '; |
||
| 892 | $sql .= ' ORDER BY `INDEX_NAME`, `SEQ_IN_INDEX` '; |
||
| 893 | |||
| 894 | $result = $this->execSql($sql); |
||
| 895 | |||
| 896 | $lastKey = ''; |
||
| 897 | $keyCols = ''; |
||
| 898 | $keyUnique = false; |
||
| 899 | while ($key = $this->fetch($result)) { |
||
| 900 | if ($lastKey != $key['INDEX_NAME']) { |
||
| 901 | if (!empty($lastKey)) { |
||
| 902 | $tableDef['keys'][$lastKey]['columns'] = $keyCols; |
||
| 903 | $tableDef['keys'][$lastKey]['unique'] = $keyUnique; |
||
| 904 | } |
||
| 905 | $lastKey = $key['INDEX_NAME']; |
||
| 906 | $keyCols = $key['COLUMN_NAME']; |
||
| 907 | if (!empty($key['SUB_PART'])) { |
||
| 908 | $keyCols .= ' (' . $key['SUB_PART'] . ')'; |
||
| 909 | } |
||
| 910 | $keyUnique = !$key['NON_UNIQUE']; |
||
| 911 | } else { |
||
| 912 | $keyCols .= ', ' . $key['COLUMN_NAME']; |
||
| 913 | if (!empty($key['SUB_PART'])) { |
||
| 914 | $keyCols .= ' (' . $key['SUB_PART'] . ')'; |
||
| 915 | } |
||
| 916 | } |
||
| 917 | }; |
||
| 918 | if (!empty($lastKey)) { |
||
| 919 | $tableDef['keys'][$lastKey]['columns'] = $keyCols; |
||
| 920 | $tableDef['keys'][$lastKey]['unique'] = $keyUnique; |
||
| 921 | } |
||
| 922 | |||
| 923 | return $tableDef; |
||
| 924 | } |
||
| 925 | |||
| 926 | /** |
||
| 927 | * During processing, tables to be created are put in the queue as |
||
| 928 | * an array('createtable' => tablename) since the definition is not |
||
| 929 | * complete. This method will expand those references to the full |
||
| 930 | * ddl to create the table. |
||
| 931 | * |
||
| 932 | * @return void |
||
| 933 | */ |
||
| 934 | protected function expandQueue() |
||
| 940 | } |
||
| 941 | } |
||
| 942 | } |
||
| 943 | } |
||
| 944 | |||
| 945 | /** |
||
| 946 | * Return message from last error encountered |
||
| 947 | * |
||
| 948 | * @return string last error message |
||
| 949 | */ |
||
| 950 | public function getLastError() |
||
| 951 | { |
||
| 952 | return $this->lastError; |
||
| 953 | } |
||
| 954 | |||
| 955 | /** |
||
| 956 | * Return code from last error encountered |
||
| 957 | * |
||
| 958 | * @return int last error number |
||
| 959 | */ |
||
| 960 | public function getLastErrNo() |
||
| 963 | } |
||
| 964 | |||
| 965 | /** |
||
| 966 | * dumpTables - utility function to dump raw tables array |
||
| 967 | * |
||
| 968 | * @return array tables |
||
| 969 | */ |
||
| 970 | public function dumpTables() |
||
| 971 | { |
||
| 972 | return $this->tables; |
||
| 973 | } |
||
| 974 | |||
| 975 | /** |
||
| 976 | * dumpQueue - utility function to dump the work queue |
||
| 977 | * |
||
| 978 | * @return array work queue |
||
| 979 | */ |
||
| 980 | public function dumpQueue() |
||
| 981 | { |
||
| 982 | $this->expandQueue(); |
||
| 983 | |||
| 984 | return $this->queue; |
||
| 985 | } |
||
| 986 | |||
| 987 | /** |
||
| 988 | * addToQueue - utility function to add a statement to the work queue |
||
| 989 | * |
||
| 990 | * @param string $sql an SQL/DDL statement to add |
||
| 991 | * |
||
| 992 | * @return void |
||
| 993 | */ |
||
| 994 | public function addToQueue($sql) |
||
| 995 | { |
||
| 996 | $this->queue[] = $sql; |
||
| 997 | } |
||
| 998 | |||
| 999 | /** |
||
| 1000 | * Set lastError as table not established |
||
| 1001 | * |
||
| 1002 | * @return false |
||
| 1003 | */ |
||
| 1004 | protected function tableNotEstablished() |
||
| 1009 | } |
||
| 1010 | } |
||
| 1011 |
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