diff options
| author | Andreas Fischer <bantu@phpbb.com> | 2011-10-14 16:29:33 +0200 |
|---|---|---|
| committer | Andreas Fischer <bantu@phpbb.com> | 2011-10-14 16:35:14 +0200 |
| commit | 4effe8fb8bdf493e539b7bf883fbf1e290bf7ab2 (patch) | |
| tree | 29b09cdbe0ad1558bc14debcf07ea68b340a3408 /phpBB | |
| parent | 234edf674cd1c2ed3611f69cd925c4d5e29fdc20 (diff) | |
| download | forums-4effe8fb8bdf493e539b7bf883fbf1e290bf7ab2.tar forums-4effe8fb8bdf493e539b7bf883fbf1e290bf7ab2.tar.gz forums-4effe8fb8bdf493e539b7bf883fbf1e290bf7ab2.tar.bz2 forums-4effe8fb8bdf493e539b7bf883fbf1e290bf7ab2.tar.xz forums-4effe8fb8bdf493e539b7bf883fbf1e290bf7ab2.zip | |
[ticket/8240] Add ability to get a list of columns of a tables to db_tools.
PHPBB3-8240
Diffstat (limited to 'phpBB')
| -rw-r--r-- | phpBB/includes/db/db_tools.php | 111 |
1 files changed, 37 insertions, 74 deletions
diff --git a/phpBB/includes/db/db_tools.php b/phpBB/includes/db/db_tools.php index 7c3d673869..317b8c6083 100644 --- a/phpBB/includes/db/db_tools.php +++ b/phpBB/includes/db/db_tools.php @@ -1071,34 +1071,21 @@ class phpbb_db_tools } /** - * Check if a specified column exist + * Gets a list of columns of a table. * - * @param string $table Table to check the column at - * @param string $column_name The column to check + * @param string $table Table name * - * @return bool True if column exists, else false + * @return array Array of column names (all lower case) */ - function sql_column_exists($table, $column_name) + function sql_list_columns($table) { + $columns = array(); + switch ($this->sql_layer) { case 'mysql_40': case 'mysql_41': - $sql = "SHOW COLUMNS FROM $table"; - $result = $this->db->sql_query($sql); - - while ($row = $this->db->sql_fetchrow($result)) - { - // lower case just in case - if (strtolower($row['Field']) == $column_name) - { - $this->db->sql_freeresult($result); - return true; - } - } - $this->db->sql_freeresult($result); - return false; break; // PostgreSQL has a way of doing this in a much simpler way but would @@ -1109,19 +1096,6 @@ class phpbb_db_tools WHERE c.relname = '{$table}' AND a.attnum > 0 AND a.attrelid = c.oid"; - $result = $this->db->sql_query($sql); - while ($row = $this->db->sql_fetchrow($result)) - { - // lower case just in case - if (strtolower($row['attname']) == $column_name) - { - $this->db->sql_freeresult($result); - return true; - } - } - $this->db->sql_freeresult($result); - - return false; break; // same deal with PostgreSQL, we must perform more complex operations than @@ -1132,62 +1106,26 @@ class phpbb_db_tools FROM syscolumns c LEFT JOIN sysobjects o ON c.id = o.id WHERE o.name = '{$table}'"; - $result = $this->db->sql_query($sql); - while ($row = $this->db->sql_fetchrow($result)) - { - // lower case just in case - if (strtolower($row['name']) == $column_name) - { - $this->db->sql_freeresult($result); - return true; - } - } - $this->db->sql_freeresult($result); - return false; break; case 'oracle': $sql = "SELECT column_name FROM user_tab_columns WHERE LOWER(table_name) = '" . strtolower($table) . "'"; - $result = $this->db->sql_query($sql); - while ($row = $this->db->sql_fetchrow($result)) - { - // lower case just in case - if (strtolower($row['column_name']) == $column_name) - { - $this->db->sql_freeresult($result); - return true; - } - } - $this->db->sql_freeresult($result); - return false; break; case 'firebird': $sql = "SELECT RDB\$FIELD_NAME as FNAME FROM RDB\$RELATION_FIELDS WHERE RDB\$RELATION_NAME = '" . strtoupper($table) . "'"; - $result = $this->db->sql_query($sql); - while ($row = $this->db->sql_fetchrow($result)) - { - // lower case just in case - if (strtolower($row['fname']) == $column_name) - { - $this->db->sql_freeresult($result); - return true; - } - } - $this->db->sql_freeresult($result); - return false; break; - // ugh, SQLite case 'sqlite': $sql = "SELECT sql FROM sqlite_master WHERE type = 'table' AND name = '{$table}'"; + $result = $this->db->sql_query($sql); if (!$result) @@ -1211,14 +1149,39 @@ class phpbb_db_tools continue; } - if (strtolower($entities[0]) == $column_name) - { - return true; - } + $column = strtolower($entities[0]); + $columns[$column] = $column; } - return false; + + return $columns; break; } + + $result = $this->db->sql_query($sql); + + while ($row = $this->db->sql_fetchrow($result)) + { + $column = strtolower(current($row)); + $columns[$column] = $column; + } + $this->db->sql_freeresult($result); + + return $columns; + } + + /** + * Check whether a specified column exist in a table + * + * @param string $table Table to check + * @param string $column_name Column to check + * + * @return bool True if column exists, false otherwise + */ + function sql_column_exists($table, $column_name) + { + $columns = $this->sql_list_columns($table); + + return isset($columns[$column_name]); } /** |