vakata /
database
| Conditions | 42 |
| Paths | 26 |
| Total Lines | 250 |
| 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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| 19 | public function table(string $table, bool $detectRelations = true) : Table |
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| 20 | { |
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| 21 | static $tables = []; |
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| 22 | |||
| 23 | $main = $this->connection['opts']['schema'] ?? $this->connection['name']; |
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| 24 | $schema = $main; |
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| 25 | if (strpos($table, '.')) { |
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| 26 | $temp = explode('.', $table, 2); |
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| 27 | $schema = $temp[0]; |
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| 28 | $table = $temp[1]; |
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| 29 | } |
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| 30 | |||
| 31 | if (isset($tables[$schema . '.' . $table])) { |
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| 32 | return $tables[$schema . '.' . $table]; |
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| 33 | } |
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| 34 | |||
| 35 | static $comments = []; |
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| 36 | if (!isset($comments[$schema])) { |
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| 37 | $comments[$schema] = Collection::from( |
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| 38 | $this->query( |
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| 39 | "SELECT TABLE_NAME, TABLE_COMMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = ?", |
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| 40 | [ $schema ] |
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| 41 | ) |
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| 42 | ) |
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| 43 | ->mapKey(function ($v) { |
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| 44 | return $v['TABLE_NAME']; |
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| 45 | }) |
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| 46 | ->pluck('TABLE_COMMENT') |
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| 47 | ->toArray(); |
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| 48 | } |
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| 49 | |||
| 50 | static $relationsT = null; |
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| 51 | static $relationsR = null; |
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| 52 | if (!isset($relationsT) || !isset($relationsR)) { |
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| 53 | $relationsT = []; |
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| 54 | $relationsR = []; |
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| 55 | $additional = []; |
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| 56 | $col = Collection::from( |
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| 57 | $this->query( |
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| 58 | "SELECT TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, CONSTRAINT_NAME, REFERENCED_TABLE_NAME, REFERENCED_TABLE_SCHEMA, REFERENCED_COLUMN_NAME |
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| 59 | FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE |
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| 60 | WHERE |
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| 61 | (TABLE_SCHEMA = ? OR REFERENCED_TABLE_SCHEMA = ?) AND |
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| 62 | TABLE_NAME IS NOT NULL AND REFERENCED_TABLE_NAME IS NOT NULL", |
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| 63 | [ $main, $main ] |
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| 64 | ) |
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| 65 | )->toArray(); |
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| 66 | foreach ($col as $row) { |
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| 67 | if ($row['TABLE_SCHEMA'] !== $main) { |
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| 68 | $additional[] = $row['TABLE_SCHEMA']; |
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| 69 | } |
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| 70 | if ($row['REFERENCED_TABLE_SCHEMA'] !== $main) { |
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| 71 | $additional[] = $row['REFERENCED_TABLE_SCHEMA']; |
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| 72 | } |
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| 73 | $relationsT[$row['TABLE_SCHEMA'] . '.' . $row['TABLE_NAME']][] = $row; |
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| 74 | $relationsR[$row['REFERENCED_TABLE_SCHEMA'] . '.' . $row['REFERENCED_TABLE_NAME']][] = $row; |
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| 75 | } |
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| 76 | foreach (array_filter(array_unique($additional)) as $s) { |
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| 77 | $col = Collection::from( |
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| 78 | $this->query( |
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| 79 | "SELECT TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, CONSTRAINT_NAME, REFERENCED_TABLE_NAME, REFERENCED_TABLE_SCHEMA, REFERENCED_COLUMN_NAME |
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| 80 | FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE |
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| 81 | WHERE |
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| 82 | TABLE_SCHEMA = ? AND REFERENCED_TABLE_SCHEMA = ? AND |
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| 83 | TABLE_NAME IS NOT NULL AND REFERENCED_TABLE_NAME IS NOT NULL", |
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| 84 | [ $s, $s ] |
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| 85 | ) |
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| 86 | )->toArray(); |
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| 87 | foreach ($col as $row) { |
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| 88 | $relationsT[$row['TABLE_SCHEMA'] . '.' . $row['TABLE_NAME']][] = $row; |
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| 89 | $relationsR[$row['REFERENCED_TABLE_SCHEMA'] . '.' . $row['REFERENCED_TABLE_NAME']][] = $row; |
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| 90 | } |
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| 91 | } |
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| 92 | } |
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| 93 | |||
| 94 | $columns = Collection::from($this->query("SHOW FULL COLUMNS FROM {$schema}.{$table}")); |
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| 95 | if (!count($columns)) { |
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| 96 | throw new DBException('Table not found by name'); |
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| 97 | } |
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| 98 | $tables[$schema . '.' . $table] = $definition = (new Table($table, $schema)) |
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| 99 | ->addColumns( |
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| 100 | $columns |
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| 101 | ->clone() |
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| 102 | ->mapKey(function ($v) { |
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| 103 | return $v['Field']; |
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| 104 | }) |
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| 105 | ->map(function ($v) { |
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| 106 | $v['length'] = null; |
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| 107 | if (!isset($v['Type'])) { |
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| 108 | return $v; |
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| 109 | } |
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| 110 | $type = strtolower($v['Type']); |
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| 111 | switch ($type) { |
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| 112 | case 'tinytext': |
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| 113 | $v['length'] = 255; |
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| 114 | break; |
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| 115 | case 'text': |
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| 116 | $v['length'] = 65535; |
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| 117 | break; |
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| 118 | case 'mediumtext': |
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| 119 | $v['length'] = 16777215; |
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| 120 | break; |
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| 121 | case 'longtext': |
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| 122 | // treat this as no limit |
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| 123 | break; |
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| 124 | default: |
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| 125 | if (strpos($type, 'char') !== false && strpos($type, '(') !== false) { |
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| 126 | // extract length from varchar |
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| 127 | $v['length'] = (int)explode(')', explode('(', $type)[1])[0]; |
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| 128 | $v['length'] = $v['length'] > 0 ? $v['length'] : null; |
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| 129 | } |
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| 130 | break; |
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| 131 | } |
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| 132 | return $v; |
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| 133 | }) |
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| 134 | ->toArray() |
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| 135 | ) |
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| 136 | ->setPrimaryKey( |
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| 137 | $columns |
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| 138 | ->clone() |
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| 139 | ->filter(function ($v) { |
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| 140 | return $v['Key'] === 'PRI'; |
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| 141 | }) |
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| 142 | ->pluck('Field') |
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| 143 | ->toArray() |
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| 144 | ) |
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| 145 | ->setComment($comments[$schema][$table] ?? ''); |
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| 146 | |||
| 147 | if ($detectRelations) { |
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| 148 | // relations where the current table is referenced |
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| 149 | // assuming current table is on the "one" end having "many" records in the referencing table |
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| 150 | // resulting in a "hasMany" or "manyToMany" relationship (if a pivot table is detected) |
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| 151 | $relations = []; |
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| 152 | foreach ($relationsR[$schema . '.' . $table] ?? [] as $relation) { |
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| 153 | $relations[$relation['CONSTRAINT_NAME']]['table'] = $relation['TABLE_SCHEMA'] . '.' . $relation['TABLE_NAME']; |
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| 154 | $relations[$relation['CONSTRAINT_NAME']]['keymap'][$relation['REFERENCED_COLUMN_NAME']] = |
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| 155 | $relation['COLUMN_NAME']; |
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| 156 | } |
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| 157 | foreach ($relations as $data) { |
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| 158 | $rtable = $this->table($data['table'], true); |
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| 159 | $columns = []; |
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| 160 | foreach ($rtable->getColumns() as $column) { |
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| 161 | if (!in_array($column, $data['keymap'])) { |
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| 162 | $columns[] = $column; |
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| 163 | } |
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| 164 | } |
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| 165 | $foreign = []; |
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| 166 | $usedcol = []; |
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| 167 | if (count($columns)) { |
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| 168 | foreach (Collection::from($relationsT[$data['table']] ?? []) |
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| 169 | ->filter(function ($v) use ($columns) { |
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| 170 | return in_array($v['COLUMN_NAME'], $columns); |
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| 171 | }) |
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| 172 | ->map(function ($v) { |
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| 173 | $new = []; |
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| 174 | foreach ($v as $kk => $vv) { |
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| 175 | $new[strtoupper($kk)] = $vv; |
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| 176 | } |
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| 177 | return $new; |
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| 178 | }) as $relation |
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| 179 | ) { |
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| 180 | $foreign[$relation['CONSTRAINT_NAME']]['table'] = $relation['REFERENCED_TABLE_SCHEMA'] . '.' . $relation['REFERENCED_TABLE_NAME']; |
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| 181 | $foreign[$relation['CONSTRAINT_NAME']]['keymap'][$relation['COLUMN_NAME']] = |
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| 182 | $relation['REFERENCED_COLUMN_NAME']; |
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| 183 | $usedcol[] = $relation['COLUMN_NAME']; |
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| 184 | } |
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| 185 | } |
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| 186 | if (count($foreign) === 1 && !count(array_diff($columns, $usedcol))) { |
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| 187 | $foreign = current($foreign); |
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| 188 | $relname = $foreign['table']; |
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| 189 | $temp = explode('.', $relname, 2); |
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| 190 | if ($temp[0] == $main) { |
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| 191 | $relname = $temp[1]; |
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| 192 | } |
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| 193 | $orig = $relname; |
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| 194 | $cntr = 1; |
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| 195 | while ($definition->hasRelation($relname) || $definition->getName() == $relname) { |
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| 196 | $relname = $orig . '_' . (++ $cntr); |
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| 197 | } |
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| 198 | $definition->addRelation( |
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| 199 | new TableRelation( |
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| 200 | $relname, |
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| 201 | $this->table($foreign['table'], true), |
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| 202 | $data['keymap'], |
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| 203 | true, |
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| 204 | $rtable, |
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| 205 | $foreign['keymap'] |
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| 206 | ) |
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| 207 | ); |
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| 208 | } else { |
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| 209 | $relname = $data['table']; |
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| 210 | $temp = explode('.', $relname, 2); |
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| 211 | if ($temp[0] == $main) { |
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| 212 | $relname = $temp[1]; |
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| 213 | } |
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| 214 | $orig = $relname; |
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| 215 | $cntr = 1; |
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| 216 | while ($definition->hasRelation($relname) || $definition->getName() == $relname) { |
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| 217 | $relname = $orig . '_' . (++ $cntr); |
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| 218 | } |
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| 219 | $definition->addRelation( |
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| 220 | new TableRelation( |
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| 221 | $relname, |
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| 222 | $this->table($data['table'], true), |
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| 223 | $data['keymap'], |
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| 224 | true |
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| 225 | ) |
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| 226 | ); |
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| 227 | } |
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| 228 | } |
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| 229 | // relations where the current table references another table |
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| 230 | // assuming current table is linked to "one" record in the referenced table |
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| 231 | // resulting in a "belongsTo" relationship |
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| 232 | $relations = []; |
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| 233 | foreach (Collection::from($relationsT[$schema . '.' . $table] ?? []) |
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| 234 | ->map(function ($v) { |
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| 235 | $new = []; |
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| 236 | foreach ($v as $kk => $vv) { |
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| 237 | $new[strtoupper($kk)] = $vv; |
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| 238 | } |
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| 239 | return $new; |
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| 240 | }) as $relation |
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| 241 | ) { |
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| 242 | $relations[$relation['CONSTRAINT_NAME']]['table'] = $relation['REFERENCED_TABLE_SCHEMA'] . '.' . $relation['REFERENCED_TABLE_NAME']; |
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| 243 | $relations[$relation['CONSTRAINT_NAME']]['keymap'][$relation['COLUMN_NAME']] = |
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| 244 | $relation['REFERENCED_COLUMN_NAME']; |
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| 245 | } |
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| 246 | foreach ($relations as $name => $data) { |
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| 247 | $relname = $data['table']; |
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| 248 | $temp = explode('.', $relname, 2); |
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| 249 | if ($temp[0] == $main) { |
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| 250 | $relname = $temp[1]; |
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| 251 | } |
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| 252 | $orig = $relname; |
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| 253 | $cntr = 1; |
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| 254 | while ($definition->hasRelation($relname) || $definition->getName() == $relname) { |
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| 255 | $relname = $orig . '_' . (++ $cntr); |
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| 256 | } |
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| 257 | $definition->addRelation( |
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| 258 | new TableRelation( |
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| 259 | $relname, |
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| 260 | $this->table($data['table'], true), |
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| 261 | $data['keymap'], |
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| 262 | false |
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| 263 | ) |
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| 264 | ); |
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| 265 | } |
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| 266 | } |
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| 267 | return $definition->toLowerCase(); |
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| 268 | } |
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| 269 | public function tables() : array |
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| 290 |
