MDB2_Driver_Reverse_oci8 Class Reference

Inheritance diagram for MDB2_Driver_Reverse_oci8:

Collaboration diagram for MDB2_Driver_Reverse_oci8:

Public Member Functions
	getTableFieldDefinition ($table, $field_name)
	Get the structure of a field into an array. More...
	getTableIndexDefinition ($table, $index_name)
	Get the structure of an index into an array. More...
	getTableConstraintDefinition ($table, $constraint_name)
	Get the structure of a constraint into an array. More...
	getSequenceDefinition ($sequence)
	Get the structure of a sequence into an array. More...
	getTriggerDefinition ($trigger)
	Get the structure of a trigger into an array. More...
	tableInfo ($result, $mode=null)
	Returns information about a table or a result set. More...
	getTableFieldDefinition ($table, $field)
	Get the structure of a field into an array. More...
	getTableIndexDefinition ($table, $index)
	Get the structure of an index into an array. More...
	getTableConstraintDefinition ($table, $index)
	Get the structure of an constraints into an array. More...
	getSequenceDefinition ($sequence)
	Get the structure of a sequence into an array. More...
	getTriggerDefinition ($trigger)
	Get the structure of a trigger into an array. More...
	tableInfo ($result, $mode=null)
	Returns information about a table or a result set. More...
Public Member Functions inherited from MDB2_Module_Common
	__construct ($db_index)
	Constructor. More...
	MDB2_Module_Common ($db_index)
	PHP 4 Constructor. More...
&	getDBInstance ()
	Get the instance of MDB2 associated with the module instance. More...

Additional Inherited Members
Data Fields inherited from MDB2_Module_Common
	$db_index

Detailed Description

Definition at line 57 of file oci8.php.

Member Function Documentation

getSequenceDefinition()

MDB2_Driver_Reverse_oci8::getSequenceDefinition

(

$sequence

)

Get the structure of a sequence into an array.

Parameters

string

$sequence

name of sequence that should be used in method

Returns

mixed data array on success, a MDB2 error on failure @access public

Reimplemented from MDB2_Driver_Reverse_Common.

Definition at line 366 of file oci8.php.

    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }
 
        $sequence_name = $db->getSequenceName($sequence);
        $query = 'SELECT last_number FROM user_sequences';
        $query.= ' WHERE sequence_name='.$db->quote($sequence_name, 'text');
        $query.= ' OR sequence_name='.$db->quote(strtoupper($sequence_name), 'text');
        $start = $db->queryOne($query, 'integer');
        if (PEAR::isError($start)) {
            return $start;
        }
        $definition = array();
        if ($start != 1) {
            $definition = array('start' => $start);
        }
        return $definition;
    }

References $query, MDB2_Module_Common\getDBInstance(), and PEAR\isError().

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getTableConstraintDefinition()

MDB2_Driver_Reverse_oci8::getTableConstraintDefinition	(		$table,
			$constraint_name
	)

Get the structure of a constraint into an array.

Parameters

string	$table	name of table that should be used in method
string	$constraint_name	name of constraint that should be used in method

Returns

mixed data array on success, a MDB2 error on failure @access public

Reimplemented from MDB2_Driver_Reverse_Common.

Definition at line 267 of file oci8.php.

    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }
        
        $query = 'SELECT alc.constraint_name, 
                         alc.constraint_type,
                         alc.search_condition,
                         alc.r_constraint_name,
                         alc.search_condition,
                         cols.column_name,
                         cols.position
                    FROM all_constraints alc,
                         all_cons_columns cols
                   WHERE (alc.constraint_name=%s OR alc.constraint_name=%s)
                     AND alc.constraint_name = cols.constraint_name
                     AND alc.owner = '.$db->quote(strtoupper($db->dsn['username']), 'text');
        if (!empty($table)) {
             $query.= ' AND (alc.table_name='.$db->quote($table, 'text').' OR alc.table_name='.$db->quote(strtoupper($table), 'text').')';
        }
        if (strtolower($constraint_name) != 'primary') {
            $constraint_name_mdb2 = $db->getIndexName($constraint_name);
            $sql = sprintf($query,
                $db->quote($constraint_name_mdb2, 'text'),
                $db->quote(strtoupper($constraint_name_mdb2), 'text')
            );
            $result = $db->queryRow($sql);
            if (!PEAR::isError($result) && !is_null($result)) {
                // apply 'idxname_format' only if the query succeeded, otherwise
                // fallback to the given $index_name, without transformation
                $constraint_name = $constraint_name_mdb2;
            }
        }
        $sql = sprintf($query,
            $db->quote($constraint_name, 'text'),
            $db->quote(strtoupper($constraint_name), 'text')
        );
        $result = $db->query($sql);
        if (PEAR::isError($result)) {
            return $result;
        }
        $definition = array();
        while (is_array($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC))) {
            $row = array_change_key_case($row, CASE_LOWER);
            $column_name = $row['column_name'];
            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
                if ($db->options['field_case'] == CASE_LOWER) {
                    $column_name = strtolower($column_name);
                } else {
                    $column_name = strtoupper($column_name);
                }
            }
            $definition['fields'][$column_name] = array(
                'position' => (int)$row['position']
            );
            $lastrow = $row;
            // otherwise $row is no longer usable on exit from loop
        }
        $result->free();
        if (empty($definition)) {
            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
                $constraint_name . ' is not an existing table constraint', __FUNCTION__);
        }
        if ($lastrow['constraint_type'] === 'P') {
            $definition['primary'] = true;
        } elseif ($lastrow['constraint_type'] === 'U') {
            $definition['unique'] = true;
        } elseif ($lastrow['constraint_type'] === 'R') {
            $definition['foreign'] = $lastrow['r_constraint_name'];
        } elseif ($lastrow['constraint_type'] === 'C') {
            $definition['check'] = true;
            // pattern match constraint for check constraint values into enum-style output:
                        $enumregex = '/'.$lastrow['column_name'].' in \‍((.+?)\‍)/i';
                        if (preg_match($enumregex, $lastrow['search_condition'], $rangestr)) {
                                $definition['fields'][$column_name] = array();
                                $allowed = explode(',', $rangestr[1]);
                                foreach ($allowed as $val) {
                                        $val = trim($val);
                                        $val = preg_replace('/^\'/', '', $val);
                                        $val = preg_replace('/\'$/', '', $val);
                                        array_push($definition['fields'][$column_name], $val);
                                }
                        }
                }
        return $definition;
    }

References $query, $result, $row, MDB2_Module_Common\getDBInstance(), PEAR\isError(), MDB2_ERROR_NOT_FOUND, MDB2_FETCHMODE_ASSOC, and MDB2_PORTABILITY_FIX_CASE.

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getTableFieldDefinition()

MDB2_Driver_Reverse_oci8::getTableFieldDefinition	(		$table,
			$field_name
	)

Get the structure of a field into an array.

Parameters

string	$table	name of table that should be used in method
string	$field_name	name of field that should be used in method

Returns

mixed data array on success, a MDB2 error on failure @access public

Reimplemented from MDB2_Driver_Reverse_Common.

Definition at line 69 of file oci8.php.

    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }
 
        $result = $db->loadModule('Datatype', null, true);
        if (PEAR::isError($result)) {
            return $result;
        }
 
        $query = 'SELECT column_name name, data_type "type", nullable, data_default "default"';
        $query.= ', COALESCE(data_precision, data_length) "length", data_scale "scale"';
        $query.= ' FROM user_tab_columns';
        $query.= ' WHERE (table_name='.$db->quote($table, 'text').' OR table_name='.$db->quote(strtoupper($table), 'text').')';
        $query.= ' AND (column_name='.$db->quote($field_name, 'text').' OR column_name='.$db->quote(strtoupper($field_name), 'text').')';
        $query.= ' ORDER BY column_id';
        $column = $db->queryRow($query, null, MDB2_FETCHMODE_ASSOC);
        if (PEAR::isError($column)) {
            return $column;
        }
 
        if (empty($column)) {
            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
                'it was not specified an existing table column', __FUNCTION__);
        }
 
        $column = array_change_key_case($column, CASE_LOWER);
        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
            if ($db->options['field_case'] == CASE_LOWER) {
                $column['name'] = strtolower($column['name']);
            } else {
                $column['name'] = strtoupper($column['name']);
            }
        }
        $mapped_datatype = $db->datatype->mapNativeDatatype($column);
        if (PEAR::IsError($mapped_datatype)) {
            return $mapped_datatype;
        }
        list($types, $length, $unsigned, $fixed) = $mapped_datatype;
        $notnull = false;
        if (!empty($column['nullable']) && $column['nullable'] == 'N') {
            $notnull = true;
        }
        $default = false;
        if (array_key_exists('default', $column)) {
            $default = $column['default'];
            if ($default === 'NULL') {
                $default = null;
            }
            if (is_null($default) && $notnull) {
                $default = '';
            }
        }
 
        $definition[0] = array('notnull' => $notnull, 'nativetype' => $column['type']);
        if (!is_null($length)) {
            $definition[0]['length'] = $length;
        }
        if (!is_null($unsigned)) {
            $definition[0]['unsigned'] = $unsigned;
        }
        if (!is_null($fixed)) {
            $definition[0]['fixed'] = $fixed;
        }
        if ($default !== false) {
            $definition[0]['default'] = $default;
        }
        foreach ($types as $key => $type) {
            $definition[$key] = $definition[0];
            if ($type == 'clob' || $type == 'blob') {
                unset($definition[$key]['default']);
            }
            $definition[$key]['type'] = $type;
            $definition[$key]['mdb2type'] = $type;
        }
        if ($type == 'integer') {
            $query = "SELECT DISTINCT name
                        FROM all_source
                       WHERE type='TRIGGER'
                         AND UPPER(text) like '%ON ". strtoupper($db->escape($table, 'text')) ."%'";
            $result = $db->query($query);
            if (!PEAR::isError($result)) {
                while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC)) {
                    $row = array_change_key_case($row, CASE_LOWER);
                    $trquery = 'SELECT text
                                  FROM all_source
                                 WHERE name=' . $db->quote($row['name'],'text')
                          . ' ORDER BY line';
                    $triggersth = $db->query($trquery);
                    $triggerstr = '';
                    while ($triggerline = $triggersth->fetchRow(MDB2_FETCHMODE_ASSOC)) {
                        $triggerline = array_change_key_case($triggerline,CASE_LOWER);
                        $triggerstr .= $triggerline['text']. ' ';
                    }
                    $matches = array();
                    if (preg_match('/.*\W(.+)\.nextval into :NEW\.'.$field_name.' FROM dual/i', $triggerstr, $matches)) {
                        // we reckon it's an autoincrementing trigger on field_name
                        // there will be other pcre patterns needed here for other ways of mimicking auto_increment in ora.
                        $definition[0]['autoincrement'] = $matches[1];
                    }
                }
            }
        }
        return $definition;
    }

References $query, $result, $row, MDB2_Module_Common\getDBInstance(), PEAR\isError(), MDB2_ERROR_NOT_FOUND, MDB2_FETCHMODE_ASSOC, and MDB2_PORTABILITY_FIX_CASE.

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getTableIndexDefinition()

MDB2_Driver_Reverse_oci8::getTableIndexDefinition	(		$table,
			$index_name
	)

Get the structure of an index into an array.

Parameters

string	$table	name of table that should be used in method
string	$index_name	name of index that should be used in method

Returns

mixed data array on success, a MDB2 error on failure @access public

Reimplemented from MDB2_Driver_Reverse_Common.

Definition at line 189 of file oci8.php.

    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }
        
        $query = "SELECT column_name,
                         column_position,
                         descend
                    FROM user_ind_columns
                   WHERE (table_name=".$db->quote($table, 'text').' OR table_name='.$db->quote(strtoupper($table), 'text').')
                     AND (index_name=%s OR index_name=%s)
                     AND index_name NOT IN (
                           SELECT constraint_name
                             FROM dba_constraints
                            WHERE (table_name = '.$db->quote($table, 'text').' OR table_name='.$db->quote(strtoupper($table), 'text').")
                              AND constraint_type in ('P','U')
                         )
                ORDER BY column_position";
        $index_name_mdb2 = $db->getIndexName($index_name);
        $sql = sprintf($query,
            $db->quote($index_name_mdb2, 'text'),
            $db->quote(strtoupper($index_name_mdb2), 'text')
        );
        $result = $db->queryRow($sql);
        if (!PEAR::isError($result) && !is_null($result)) {
            // apply 'idxname_format' only if the query succeeded, otherwise
            // fallback to the given $index_name, without transformation
            $index_name = $index_name_mdb2;
        }
        $sql = sprintf($query,
            $db->quote($index_name, 'text'),
            $db->quote(strtoupper($index_name), 'text')
        );
        $result = $db->query($sql);
        if (PEAR::isError($result)) {
            return $result;
        }
 
        $definition = array();
        while ($row = $result->fetchRow(MDB2_FETCHMODE_ASSOC)) {
            $row = array_change_key_case($row, CASE_LOWER);
            $column_name = $row['column_name'];
            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
                if ($db->options['field_case'] == CASE_LOWER) {
                    $column_name = strtolower($column_name);
                } else {
                    $column_name = strtoupper($column_name);
                }
            }
            $definition['fields'][$column_name] = array(
                'position' => (int)$row['column_position'],
            );
            if (!empty($row['descend'])) {
                $definition['fields'][$column_name]['sorting'] =
                    ($row['descend'] == 'ASC' ? 'ascending' : 'descending');
            }
        }
        $result->free();
        if (empty($definition['fields'])) {
            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
                'it was not specified an existing table index', __FUNCTION__);
        }
        return $definition;
    }

References $query, $result, $row, MDB2_Module_Common\getDBInstance(), PEAR\isError(), MDB2_ERROR_NOT_FOUND, MDB2_FETCHMODE_ASSOC, and MDB2_PORTABILITY_FIX_CASE.

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getTriggerDefinition()

MDB2_Driver_Reverse_oci8::getTriggerDefinition

(

$trigger

)

Get the structure of a trigger into an array.

EXPERIMENTAL

WARNING: this function is experimental and may change the returned value at any time until labelled as non-experimental

Parameters

string

$trigger

name of trigger that should be used in method

Returns

mixed data array on success, a MDB2 error on failure @access public

Reimplemented from MDB2_Driver_Reverse_Common.

Definition at line 403 of file oci8.php.

    {
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }
 
        $query = 'SELECT trigger_name,
                         table_name,
                         trigger_body,
                         trigger_type,
                         triggering_event trigger_event,
                         description trigger_comment,
                         1 trigger_enabled,
                         when_clause
                    FROM user_triggers
                   WHERE trigger_name = \''. strtoupper($trigger).'\'';
        $types = array(
            'trigger_name'    => 'text',
            'table_name'      => 'text',
            'trigger_body'    => 'text',
            'trigger_type'    => 'text',
            'trigger_event'   => 'text',
            'trigger_comment' => 'text',
            'trigger_enabled' => 'boolean',
            'when_clause'     => 'text',
        );
        $result = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);
        if (PEAR::isError($result)) {
            return $result;
        }
        if (!empty($result['trigger_type'])) {
            //$result['trigger_type'] = array_shift(explode(' ', $result['trigger_type']));
            $result['trigger_type'] = preg_replace('/(\S+).*/', '\\1', $result['trigger_type']);
        }
        return $result;
    }

References $query, $result, MDB2_Module_Common\getDBInstance(), PEAR\isError(), and MDB2_FETCHMODE_ASSOC.

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tableInfo()

MDB2_Driver_Reverse_oci8::tableInfo	(		$result,
			$mode = null
	)

Returns information about a table or a result set.

NOTE: only supports 'table' and 'flags' if $result is a table name.

NOTE: flags won't contain index information.

Parameters

object | string	$result	MDB2_result object from a query or a string containing the name of a table. While this also accepts a query result resource identifier, this behavior is deprecated.
int	$mode	a valid tableInfo mode

Returns

array an associative array with the information requested. A MDB2_Error object on failure.

See also

MDB2_Driver_Common::tableInfo()

Reimplemented from MDB2_Driver_Reverse_Common.

Definition at line 464 of file oci8.php.

    {
        if (is_string($result)) {
           return parent::tableInfo($result, $mode);
        }
 
        $db =& $this->getDBInstance();
        if (PEAR::isError($db)) {
            return $db;
        }
 
        $resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;
        if (!is_resource($resource)) {
            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
                'Could not generate result resource', __FUNCTION__);
        }
 
        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
            if ($db->options['field_case'] == CASE_LOWER) {
                $case_func = 'strtolower';
            } else {
                $case_func = 'strtoupper';
            }
        } else {
            $case_func = 'strval';
        }
 
        $count = @OCINumCols($resource);
        $res = array();
 
        if ($mode) {
            $res['num_fields'] = $count;
        }
 
        $db->loadModule('Datatype', null, true);
        for ($i = 0; $i < $count; $i++) {
            $column = array(
                'table'  => '',
                'name'   => $case_func(@OCIColumnName($resource, $i+1)),
                'type'   => @OCIColumnType($resource, $i+1),
                'length' => @OCIColumnSize($resource, $i+1),
                'flags'  => '',
            );
            $res[$i] = $column;
            $res[$i]['mdb2type'] = $db->datatype->mapNativeDatatype($res[$i]);
            if ($mode & MDB2_TABLEINFO_ORDER) {
                $res['order'][$res[$i]['name']] = $i;
            }
            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
            }
        }
        return $res;
    }

References $res, $result, MDB2_Module_Common\getDBInstance(), PEAR\isError(), MDB2\isResultCommon(), MDB2_ERROR_NEED_MORE_DATA, MDB2_PORTABILITY_FIX_CASE, MDB2_TABLEINFO_ORDER, and MDB2_TABLEINFO_ORDERTABLE.

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---

The documentation for this class was generated from the following file:

• Services/PEAR/lib/MDB2/Driver/Reverse/oci8.php