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Merge #901 DB 컬럼 정보를 불러오는 기능 + DB 컬럼 속성을 변경하는 기능 by kijin
* pr/901: Implement modifyColumn() for Cubrid Implement modifyColumn() for MS SQL Implement modifyColumn() for MySQL Implement getColumnInfo() for Cubrid Implement getColumnInfo() for MS SQL Initial implementation of getColumnInfo() for MySQL
This commit is contained in:
Kijin Sung
commit
3d70d5197e
3 changed files with 313 additions and 1 deletions
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@ -539,6 +539,68 @@ class DBCubrid extends DB
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$this->_query($query);
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}
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/**
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* Modify a column (only supported in CUBRID 8.4 and above, otherwise returns false)
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* @param string $table_name table name
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* @param string $column_name column name
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* @param string $type column type, default value is 'number'
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* @param int $size column size
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* @param string|int $default default value
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* @param boolean $notnull not null status, default value is false
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* @return bool
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*/
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function modifyColumn($table_name, $column_name, $type = 'number', $size = '', $default = '', $notnull = FALSE)
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{
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if(!version_compare(__CUBRID_VERSION__, '8.4.0', '>='))
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{
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return false;
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}
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$type = strtoupper($this->column_type[$type]);
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if($type == 'INTEGER')
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{
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$size = '';
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}
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$query = sprintf("alter class \"%s%s\" modify \"%s\" ", $this->prefix, $table_name, $column_name);
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if($type == 'char' || $type == 'varchar')
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{
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if($size)
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{
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$size = $size * 3;
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}
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}
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if($size)
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{
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$query .= sprintf("%s(%s) ", $type, $size);
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}
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else
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{
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$query .= sprintf("%s ", $type);
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}
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if($default)
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{
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if($type == 'INTEGER' || $type == 'BIGINT' || $type == 'INT')
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{
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$query .= sprintf("default %d ", $default);
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}
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else
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{
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$query .= sprintf("default '%s' ", $default);
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}
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}
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if($notnull)
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{
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$query .= "not null ";
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}
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return $this->_query($query) ? true : false;
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}
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/**
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* Check column exist status of the table
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* @param string $table_name table name
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@ -567,6 +629,62 @@ class DBCubrid extends DB
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return $output;
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}
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/**
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* Get information about a column
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* @param string $table_name table name
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* @param string $column_name column name
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* @return object
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*/
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function getColumnInfo($table_name, $column_name)
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{
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$query = sprintf("select * from \"db_attribute\" where " . "\"attr_name\" ='%s' and \"class_name\" = '%s%s'", $column_name, $this->prefix, $table_name);
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$result = $this->_query($query);
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if($this->isError())
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{
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return;
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}
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$output = $this->_fetch($result);
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if($output)
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{
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$dbtype = strtolower($output->data_type);
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if($dbtype === 'string') $dbtype = 'character varying';
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$size = ($output->prec > 0) ? $output->prec : null;
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if($xetype = array_search("$dbtype($size)", $this->column_type))
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{
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$dbtype = "$dbtype($size)";
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$size = null;
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}
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elseif($size !== null)
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{
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if($xetype = array_search($dbtype, $this->column_type))
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{
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if($size % 3 == 0) $size = intval($size / 3);
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}
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else
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{
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$xetype = $dbtype;
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}
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}
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else
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{
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$xetype = $dbtype;
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$size = null;
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}
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return (object)array(
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'name' => $output->attr_name,
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'dbtype' => $dbtype,
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'xetype' => $xetype,
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'size' => $size,
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'default_value' => $output->default_value,
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'notnull' => !$output->is_nullable,
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);
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}
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else
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{
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return false;
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}
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}
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/**
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* Add an index to the table
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* $target_columns = array(col1, col2)
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@ -427,6 +427,46 @@ class DBMssql extends DB
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$this->_query($query);
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}
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/**
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* Modify a column
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* @param string $table_name table name
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* @param string $column_name column name
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* @param string $type column type, default value is 'number'
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* @param int $size column size
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* @param string|int $default default value
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* @param boolean $notnull not null status, default value is false
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* @return bool
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*/
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function modifyColumn($table_name, $column_name, $type = 'number', $size = '', $default = '', $notnull = false)
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{
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$type = $this->column_type[$type];
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if(strtoupper($type) == 'INTEGER')
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{
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$size = '';
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}
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$query = sprintf("alter table %s%s alter column %s ", $this->prefix, $table_name, $column_name);
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if($size)
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{
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$query .= sprintf(" %s(%s) ", $type, $size);
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}
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else
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{
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$query .= sprintf(" %s ", $type);
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}
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if($default)
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{
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$query .= sprintf(" default '%s' ", $default);
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}
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if($notnull)
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{
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$query .= " not null ";
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}
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return $this->_query($query) ? true : false;
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}
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/**
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* Check column exist status of the table
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* @param string $table_name table name
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@ -448,7 +488,67 @@ class DBMssql extends DB
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}
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return true;
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}
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/**
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* Get information about a column
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* @param string $table_name table name
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* @param string $column_name column name
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* @return object
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*/
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function getColumnInfo($table_name, $column_name)
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{
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$query = sprintf("select syscolumns.name as name, systypes.name as type_name, syscolumns.length as length, " .
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"syscolumns.isnullable as isnullable, syscomments.text as default_value from syscolumns " .
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"inner join sysobjects on sysobjects.id = syscolumns.id " .
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"inner join systypes on systypes.xtype = syscolumns.xtype " .
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"left join syscomments on syscolumns.cdefault = syscomments.id " .
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"where sysobjects.name = '%s%s' and syscolumns.name = '%s'", $this->prefix, $table_name, $column_name);
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$result = $this->_query($query);
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if($this->isError())
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{
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return;
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}
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$output = $this->_fetch($result);
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if($output)
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{
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$dbtype = $output->type_name;
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$size = ($output->length > 0) ? $output->length : null;
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if($xetype = array_search("$dbtype($size)", $this->column_type))
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{
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$dbtype = "$dbtype($size)";
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$size = null;
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}
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elseif($size !== null)
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{
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if($xetype = array_search($dbtype, $this->column_type))
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{
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// no-op
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}
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else
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{
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$xetype = $dbtype;
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}
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}
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else
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{
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$xetype = $dbtype;
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$size = null;
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}
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return (object)array(
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'name' => $output->name,
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'dbtype' => $dbtype,
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'xetype' => $xetype,
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'size' => $size,
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'default_value' => $output->default_value,
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'notnull' => !$output->isnullable,
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);
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}
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else
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{
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return false;
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}
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}
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/**
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* Add an index to the table
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* $target_columns = array(col1, col2)
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@ -340,6 +340,45 @@ class DBMysql extends DB
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$this->_query($query);
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}
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/**
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* Modify a column
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* @param string $table_name table name
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* @param string $column_name column name
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* @param string $type column type, default value is 'number'
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* @param int $size column size
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* @param string|int $default default value
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* @param boolean $notnull not null status, default value is false
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* @return bool
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*/
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function modifyColumn($table_name, $column_name, $type = 'number', $size = '', $default = '', $notnull = false)
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{
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$type = $this->column_type[$type];
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if(strtoupper($type) == 'INTEGER')
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{
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$size = '';
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}
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$query = sprintf("alter table `%s%s` modify `%s` ", $this->prefix, $table_name, $column_name);
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if($size)
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{
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$query .= sprintf(" %s(%s) ", $type, $size);
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}
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else
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{
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$query .= sprintf(" %s ", $type);
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}
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if($default)
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{
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$query .= sprintf(" default '%s' ", $default);
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}
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if($notnull)
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{
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$query .= " not null ";
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}
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return $this->_query($query) ? true : false;
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}
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/**
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* Check column exist status of the table
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* @param string $table_name table name
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@ -370,6 +409,61 @@ class DBMysql extends DB
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return false;
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}
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/**
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* Get information about a column
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* @param string $table_name table name
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* @param string $column_name column name
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* @return object
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*/
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function getColumnInfo($table_name, $column_name)
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{
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$query = sprintf("show fields from `%s%s` where `Field` = '%s'", $this->prefix, $table_name, $column_name);
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$result = $this->_query($query);
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if($this->isError())
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{
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return;
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}
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$output = $this->_fetch($result);
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if($output)
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{
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$dbtype = $output->{'Type'};
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if($xetype = array_search($dbtype, $this->column_type))
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{
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$size = null;
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}
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elseif(strpos($dbtype, '(') !== false)
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{
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list($dbtype, $size) = explode('(', $dbtype, 2);
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$size = intval(rtrim($size, ')'));
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if($xetype = array_search($dbtype, $this->column_type))
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{
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// no-op
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}
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else
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{
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$xetype = $dbtype;
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}
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}
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else
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{
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$xetype = $dbtype;
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$size = null;
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}
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return (object)array(
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'name' => $output->{'Field'},
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'dbtype' => $dbtype,
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'xetype' => $xetype,
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'size' => $size,
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'default_value' => $output->{'Default'},
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'notnull' => strncmp($output->{'Null'}, 'NO', 2) == 0 ? true : false,
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);
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}
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else
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{
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return false;
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}
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}
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/**
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* Add an index to the table
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* $target_columns = array(col1, col2)
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