| Total Complexity | 52 |
| Total Lines | 313 |
| Duplicated Lines | 28.75 % |
| Coverage | 0% |
| Changes | 0 | ||
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like SQLAnywhereStatement 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 SQLAnywhereStatement, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 34 | class SQLAnywhereStatement implements IteratorAggregate, Statement |
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| 35 | { |
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| 36 | /** |
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| 37 | * @var resource The connection resource. |
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| 38 | */ |
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| 39 | private $conn; |
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| 40 | |||
| 41 | /** |
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| 42 | * @var string Name of the default class to instantiate when fetch mode is \PDO::FETCH_CLASS. |
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| 43 | */ |
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| 44 | private $defaultFetchClass = '\stdClass'; |
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| 45 | |||
| 46 | /** |
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| 47 | * @var string Constructor arguments for the default class to instantiate when fetch mode is \PDO::FETCH_CLASS. |
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| 48 | */ |
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| 49 | private $defaultFetchClassCtorArgs = []; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var int Default fetch mode to use. |
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| 53 | */ |
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| 54 | private $defaultFetchMode = PDO::FETCH_BOTH; |
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| 55 | |||
| 56 | /** |
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| 57 | * @var resource The result set resource to fetch. |
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| 58 | */ |
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| 59 | private $result; |
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| 60 | |||
| 61 | /** |
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| 62 | * @var resource The prepared SQL statement to execute. |
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| 63 | */ |
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| 64 | private $stmt; |
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| 65 | |||
| 66 | /** |
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| 67 | * Constructor. |
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| 68 | * |
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| 69 | * Prepares given statement for given connection. |
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| 70 | * |
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| 71 | * @param resource $conn The connection resource to use. |
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| 72 | * @param string $sql The SQL statement to prepare. |
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| 73 | * |
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| 74 | * @throws SQLAnywhereException |
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| 75 | */ |
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| 76 | public function __construct($conn, $sql) |
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| 77 | { |
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| 78 | if ( ! is_resource($conn)) { |
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| 79 | throw new SQLAnywhereException('Invalid SQL Anywhere connection resource: ' . $conn); |
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| 80 | } |
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| 81 | |||
| 82 | $this->conn = $conn; |
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| 83 | $this->stmt = sasql_prepare($conn, $sql); |
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| 84 | |||
| 85 | if ( ! is_resource($this->stmt)) { |
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| 86 | throw SQLAnywhereException::fromSQLAnywhereError($conn); |
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| 87 | } |
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| 88 | } |
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| 89 | |||
| 90 | /** |
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| 91 | * {@inheritdoc} |
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| 92 | * |
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| 93 | * @throws SQLAnywhereException |
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| 94 | */ |
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| 95 | public function bindParam($column, &$variable, $type = null, $length = null) |
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| 96 | { |
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| 97 | switch ($type) { |
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| 98 | case PDO::PARAM_INT: |
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| 99 | case PDO::PARAM_BOOL: |
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| 100 | $type = 'i'; |
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| 101 | break; |
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| 102 | case PDO::PARAM_LOB: |
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| 103 | $type = 'b'; |
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| 104 | break; |
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| 105 | case PDO::PARAM_NULL: |
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| 106 | case PDO::PARAM_STR: |
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| 107 | $type = 's'; |
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| 108 | break; |
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| 109 | default: |
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| 110 | throw new SQLAnywhereException('Unknown type: ' . $type); |
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| 111 | } |
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| 112 | |||
| 113 | if ( ! sasql_stmt_bind_param_ex($this->stmt, $column - 1, $variable, $type, $variable === null)) { |
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| 114 | throw SQLAnywhereException::fromSQLAnywhereError($this->conn, $this->stmt); |
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| 115 | } |
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| 116 | |||
| 117 | return true; |
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| 118 | } |
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| 119 | |||
| 120 | /** |
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| 121 | * {@inheritdoc} |
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| 122 | */ |
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| 123 | public function bindValue($param, $value, $type = null) |
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| 124 | { |
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| 125 | return $this->bindParam($param, $value, $type); |
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| 126 | } |
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| 127 | |||
| 128 | /** |
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| 129 | * {@inheritdoc} |
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| 130 | * |
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| 131 | * @throws SQLAnywhereException |
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| 132 | */ |
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| 133 | public function closeCursor() |
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| 134 | { |
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| 135 | if (!sasql_stmt_reset($this->stmt)) { |
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| 136 | throw SQLAnywhereException::fromSQLAnywhereError($this->conn, $this->stmt); |
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| 137 | } |
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| 138 | |||
| 139 | return true; |
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| 140 | } |
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| 141 | |||
| 142 | /** |
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| 143 | * {@inheritdoc} |
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| 144 | */ |
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| 145 | public function columnCount() |
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| 146 | { |
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| 147 | return sasql_stmt_field_count($this->stmt); |
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| 148 | } |
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| 149 | |||
| 150 | /** |
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| 151 | * {@inheritdoc} |
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| 152 | */ |
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| 153 | public function errorCode() |
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| 156 | } |
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| 157 | |||
| 158 | /** |
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| 159 | * {@inheritdoc} |
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| 160 | */ |
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| 161 | public function errorInfo() |
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| 162 | { |
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| 163 | return sasql_stmt_error($this->stmt); |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * {@inheritdoc} |
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| 168 | * |
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| 169 | * @throws SQLAnywhereException |
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| 170 | */ |
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| 171 | public function execute($params = null) |
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| 172 | { |
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| 173 | View Code Duplication | if (is_array($params)) { |
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| 174 | $hasZeroIndex = array_key_exists(0, $params); |
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| 175 | |||
| 176 | foreach ($params as $key => $val) { |
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| 177 | $key = ($hasZeroIndex && is_numeric($key)) ? $key + 1 : $key; |
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| 178 | |||
| 179 | $this->bindValue($key, $val); |
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| 180 | } |
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| 181 | } |
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| 182 | |||
| 183 | if ( ! sasql_stmt_execute($this->stmt)) { |
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| 184 | throw SQLAnywhereException::fromSQLAnywhereError($this->conn, $this->stmt); |
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| 185 | } |
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| 186 | |||
| 187 | $this->result = sasql_stmt_result_metadata($this->stmt); |
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| 188 | |||
| 189 | return true; |
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| 190 | } |
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| 191 | |||
| 192 | /** |
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| 193 | * {@inheritdoc} |
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| 194 | * |
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| 195 | * @throws SQLAnywhereException |
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| 196 | */ |
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| 197 | View Code Duplication | public function fetch($fetchMode = null, $cursorOrientation = \PDO::FETCH_ORI_NEXT, $cursorOffset = 0) |
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| 198 | { |
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| 199 | if ( ! is_resource($this->result)) { |
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| 200 | return false; |
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| 201 | } |
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| 202 | |||
| 203 | $fetchMode = $fetchMode ?: $this->defaultFetchMode; |
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| 204 | |||
| 205 | switch ($fetchMode) { |
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| 206 | case PDO::FETCH_ASSOC: |
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| 207 | return sasql_fetch_assoc($this->result); |
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| 208 | case PDO::FETCH_BOTH: |
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| 209 | return sasql_fetch_array($this->result, SASQL_BOTH); |
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| 210 | case PDO::FETCH_CLASS: |
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| 211 | $className = $this->defaultFetchClass; |
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| 212 | $ctorArgs = $this->defaultFetchClassCtorArgs; |
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| 213 | |||
| 214 | if (func_num_args() >= 2) { |
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| 215 | $args = func_get_args(); |
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| 216 | $className = $args[1]; |
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| 217 | $ctorArgs = isset($args[2]) ? $args[2] : []; |
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| 218 | } |
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| 219 | |||
| 220 | $result = sasql_fetch_object($this->result); |
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| 221 | |||
| 222 | if ($result instanceof \stdClass) { |
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| 223 | $result = $this->castObject($result, $className, $ctorArgs); |
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| 224 | } |
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| 225 | |||
| 226 | return $result; |
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| 227 | case PDO::FETCH_NUM: |
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| 228 | return sasql_fetch_row($this->result); |
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| 229 | case PDO::FETCH_OBJ: |
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| 230 | return sasql_fetch_object($this->result); |
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| 231 | default: |
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| 232 | throw new SQLAnywhereException('Fetch mode is not supported: ' . $fetchMode); |
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| 233 | } |
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| 234 | } |
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| 235 | |||
| 236 | /** |
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| 237 | * {@inheritdoc} |
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| 238 | */ |
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| 239 | View Code Duplication | public function fetchAll($fetchMode = null, $fetchArgument = null, $ctorArgs = null) |
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| 240 | { |
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| 241 | $rows = []; |
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| 242 | |||
| 243 | switch ($fetchMode) { |
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| 244 | case PDO::FETCH_CLASS: |
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| 245 | while ($row = call_user_func_array([$this, 'fetch'], func_get_args())) { |
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| 246 | $rows[] = $row; |
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| 247 | } |
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| 248 | break; |
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| 249 | case PDO::FETCH_COLUMN: |
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| 250 | while ($row = $this->fetchColumn()) { |
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| 251 | $rows[] = $row; |
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| 252 | } |
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| 253 | break; |
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| 254 | default: |
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| 255 | while ($row = $this->fetch($fetchMode)) { |
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| 256 | $rows[] = $row; |
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| 257 | } |
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| 258 | } |
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| 259 | |||
| 260 | return $rows; |
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| 261 | } |
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| 262 | |||
| 263 | /** |
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| 264 | * {@inheritdoc} |
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| 265 | */ |
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| 266 | View Code Duplication | public function fetchColumn($columnIndex = 0) |
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| 275 | } |
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| 276 | |||
| 277 | /** |
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| 278 | * {@inheritdoc} |
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| 279 | */ |
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| 280 | public function getIterator() |
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| 281 | { |
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| 282 | return new StatementIterator($this); |
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| 283 | } |
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| 284 | |||
| 285 | /** |
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| 286 | * {@inheritdoc} |
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| 287 | */ |
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| 288 | public function rowCount() |
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| 291 | } |
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| 292 | |||
| 293 | /** |
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| 294 | * {@inheritdoc} |
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| 295 | */ |
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| 296 | public function setFetchMode($fetchMode, $arg2 = null, $arg3 = null) |
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| 301 | } |
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| 302 | |||
| 303 | /** |
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| 304 | * Casts a stdClass object to the given class name mapping its' properties. |
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| 305 | * |
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| 306 | * @param \stdClass $sourceObject Object to cast from. |
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| 307 | * @param string|object $destinationClass Name of the class or class instance to cast to. |
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| 308 | * @param array $ctorArgs Arguments to use for constructing the destination class instance. |
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| 309 | * |
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| 310 | * @return object |
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| 311 | * |
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| 312 | * @throws SQLAnywhereException |
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| 313 | */ |
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| 314 | private function castObject(\stdClass $sourceObject, $destinationClass, array $ctorArgs = []) |
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| 349 |