class.ilDBPdoMySQLFieldDefinition.php

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<?php
require_once('./Services/Database/classes/PDO/FieldDefinition/class.ilDBPdoFieldDefinition.php');

class ilDBPdoMySQLFieldDefinition extends ilDBPdoFieldDefinition {

        public function getTypeDeclaration($field) {
                $db = $this->getDBInstance();

                switch ($field['type']) {
                        case 'text':
                                if (empty($field['length']) && array_key_exists('default', $field)) {
                                        $field['length'] = $db->varchar_max_length;
                                }
                                $length = !empty($field['length']) ? $field['length'] : false;
                                $fixed = !empty($field['fixed']) ? $field['fixed'] : false;

                                return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(255)') : ($length ? 'VARCHAR(' . $length . ')' : 'TEXT');
                        case 'clob':
                                if (!empty($field['length'])) {
                                        $length = $field['length'];
                                        if ($length <= 255) {
                                                return 'TINYTEXT';
                                        } elseif ($length <= 65532) {
                                                return 'TEXT';
                                        } elseif ($length <= 16777215) {
                                                return 'MEDIUMTEXT';
                                        }
                                }

                                return 'LONGTEXT';
                        case 'blob':
                                if (!empty($field['length'])) {
                                        $length = $field['length'];
                                        if ($length <= 255) {
                                                return 'TINYBLOB';
                                        } elseif ($length <= 65532) {
                                                return 'BLOB';
                                        } elseif ($length <= 16777215) {
                                                return 'MEDIUMBLOB';
                                        }
                                }

                                return 'LONGBLOB';
                        case 'integer':
                                if (!empty($field['length'])) {
                                        $length = $field['length'];
                                        if ($length <= 1) {
                                                return 'TINYINT';
                                        } elseif ($length == 2) {
                                                return 'SMALLINT';
                                        } elseif ($length == 3) {
                                                return 'MEDIUMINT';
                                        } elseif ($length == 4) {
                                                return 'INT';
                                        } elseif ($length > 4) {
                                                return 'BIGINT';
                                        }
                                }

                                return 'INT';
                        case 'boolean':
                                return 'TINYINT(1)';
                        case 'date':
                                return 'DATE';
                        case 'time':
                                return 'TIME';
                        case 'timestamp':
                                return 'DATETIME';
                        case 'float':
                                return 'DOUBLE';
                        case 'decimal':
                                $length = !empty($field['length']) ? $field['length'] : 18;
                                $scale = !empty($field['scale']) ? $field['scale'] : $db->options['decimal_places'];

                                return 'DECIMAL(' . $length . ',' . $scale . ')';
                }

                return '';
        }


        protected function getIntegerDeclaration($name, $field) {
                $db = $this->getDBInstance();

                $default = $autoinc = '';
                if (!empty($field['autoincrement'])) {
                        $autoinc = ' AUTO_INCREMENT PRIMARY KEY';
                } elseif (array_key_exists('default', $field)) {
                        if ($field['default'] === '') {
                                $field['default'] = empty($field['notnull']) ? null : 0;
                        }
                        $default = ' DEFAULT ' . $this->quote($field['default'], 'integer');
                } elseif (empty($field['notnull'])) {
                        $default = ' DEFAULT NULL';
                }

                $notnull = empty($field['notnull']) ? '' : ' NOT NULL';
                $unsigned = empty($field['unsigned']) ? '' : ' UNSIGNED';
                $name = $db->quoteIdentifier($name, true);

                return $name . ' ' . $this->getTypeDeclaration($field) . $unsigned . $default . $notnull . $autoinc;
        }


        protected function mapNativeDatatypeInternal($field) {
                $db_type = strtolower($field['type']);
                $db_type = strtok($db_type, '(), ');
                if ($db_type == 'national') {
                        $db_type = strtok('(), ');
                }
                if (!empty($field['length'])) {
                        $length = strtok($field['length'], ', ');
                        $decimal = strtok(', ');
                } else {
                        $length = strtok('(), ');
                        $decimal = strtok('(), ');
                }
                $type = array();
                $unsigned = $fixed = null;
                switch ($db_type) {
                        case 'tinyint':
                                $type[] = 'integer';
                                $type[] = 'boolean';
                                if (preg_match('/^(is|has)/', $field['name'])) {
                                        $type = array_reverse($type);
                                }
                                $unsigned = preg_match('/ unsigned/i', $field['type']);
                                $length = 1;
                                break;
                        case 'smallint':
                                $type[] = 'integer';
                                $unsigned = preg_match('/ unsigned/i', $field['type']);
                                $length = 2;
                                break;
                        case 'mediumint':
                                $type[] = 'integer';
                                $unsigned = preg_match('/ unsigned/i', $field['type']);
                                $length = 3;
                                break;
                        case 'int':
                        case 'integer':
                                $type[] = 'integer';
                                $unsigned = preg_match('/ unsigned/i', $field['type']);
                                $length = 4;
                                break;
                        case 'bigint':
                                $type[] = 'integer';
                                $unsigned = preg_match('/ unsigned/i', $field['type']);
                                $length = 8;
                                break;
                        case 'tinytext':
                        case 'mediumtext':
                        case 'longtext':
                        case 'text':
                        case 'text':
                        case 'varchar':
                                $fixed = false;
                        case 'string':
                        case 'char':
                                $type[] = 'text';
                                if ($length == '1') {
                                        $type[] = 'boolean';
                                        if (preg_match('/^(is|has)/', $field['name'])) {
                                                $type = array_reverse($type);
                                        }
                                } elseif (strstr($db_type, 'text')) {
                                        $type[] = 'clob';
                                        if ($decimal == 'binary') {
                                                $type[] = 'blob';
                                        }
                                }
                                if ($fixed !== false) {
                                        $fixed = true;
                                }
                                break;
                        case 'enum':
                                $type[] = 'text';
                                preg_match_all('/\'.+\'/U', $field['type'], $matches);
                                $length = 0;
                                $fixed = false;
                                if (is_array($matches)) {
                                        foreach ($matches[0] as $value) {
                                                $length = max($length, strlen($value) - 2);
                                        }
                                        if ($length == '1' && count($matches[0]) == 2) {
                                                $type[] = 'boolean';
                                                if (preg_match('/^(is|has)/', $field['name'])) {
                                                        $type = array_reverse($type);
                                                }
                                        }
                                }
                                $type[] = 'integer';
                        case 'set':
                                $fixed = false;
                                $type[] = 'text';
                                $type[] = 'integer';
                                break;
                        case 'date':
                                $type[] = 'date';
                                $length = null;
                                break;
                        case 'datetime':
                        case 'timestamp':
                                $type[] = 'timestamp';
                                $length = null;
                                break;
                        case 'time':
                                $type[] = 'time';
                                $length = null;
                                break;
                        case 'float':
                        case 'double':
                        case 'real':
                                $type[] = 'float';
                                $unsigned = preg_match('/ unsigned/i', $field['type']);
                                break;
                        case 'unknown':
                        case 'decimal':
                        case 'numeric':
                                $type[] = 'decimal';
                                $unsigned = preg_match('/ unsigned/i', $field['type']);
                                if ($decimal !== false) {
                                        $length = $length . ',' . $decimal;
                                }
                                break;
                        case 'tinyblob':
                        case 'mediumblob':
                        case 'longblob':
                        case 'blob':
                                $type[] = 'blob';
                                $length = null;
                                break;
                        case 'binary':
                        case 'varbinary':
                                $type[] = 'blob';
                                break;
                        case 'year':
                                $type[] = 'integer';
                                $type[] = 'date';
                                $length = null;
                                break;
                        default:
                                throw new ilDatabaseException('unknown database attribute type: ' . $db_type);
                }

                if ((int)$length <= 0) {
                        $length = null;
                }

                return array( $type, $length, $unsigned, $fixed );
        }
}