Documentation TYPO3 par Ameos
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t3lib_DB Class Reference

List of all members.

Public Member Functions

 exec_INSERTquery ($table, $fields_values)
 exec_UPDATEquery ($table, $where, $fields_values)
 exec_DELETEquery ($table, $where)
 exec_SELECTquery ($select_fields, $from_table, $where_clause, $groupBy='', $orderBy='', $limit='')
 exec_SELECT_mm_query ($select, $local_table, $mm_table, $foreign_table, $whereClause='', $groupBy='', $orderBy='', $limit='')
 exec_SELECT_queryArray ($queryParts)
 exec_SELECTgetRows ($select_fields, $from_table, $where_clause, $groupBy='', $orderBy='', $limit='', $uidIndexField='')
 INSERTquery ($table, $fields_values)
 UPDATEquery ($table, $where, $fields_values)
 DELETEquery ($table, $where)
 SELECTquery ($select_fields, $from_table, $where_clause, $groupBy='', $orderBy='', $limit='')
 listQuery ($field, $value, $table)
 searchQuery ($searchWords, $fields, $table)
 fullQuoteStr ($str, $table)
 quoteStr ($str, $table)
 cleanIntArray ($arr)
 cleanIntList ($list)
 stripOrderBy ($str)
 stripGroupBy ($str)
 splitGroupOrderLimit ($str)
 sql ($db, $query)
 sql_query ($query)
 sql_error ()
 sql_num_rows ($res)
 sql_fetch_assoc ($res)
 sql_fetch_row ($res)
 sql_free_result ($res)
 sql_insert_id ()
 sql_affected_rows ()
 sql_data_seek ($res, $seek)
 sql_field_type ($res, $pointer)
 sql_pconnect ($TYPO3_db_host, $TYPO3_db_username, $TYPO3_db_password)
 sql_select_db ($TYPO3_db)
 admin_get_dbs ()
 admin_get_tables ()
 admin_get_fields ($tableName)
 admin_get_keys ($tableName)
 admin_query ($query)
 debug ($func)

Public Attributes

 $debugOutput = FALSE
 $debug_lastBuiltQuery = ''
 $store_lastBuiltQuery = FALSE
 $link

Detailed Description

Definition at line 133 of file class.t3lib_db.php.

Member Function Documentation

t3lib_DB::admin_get_dbs (   ) 
 

Listing databases from current MySQL connection. NOTICE: It WILL try to select those databases and thus break selection of current database. This is only used as a service function in the (1-2-3 process) of the Install Tool. In any case a lookup should be done in the _DEFAULT handler DBMS then. Use in Install Tool only! Usage count/core: 1

Returns:
array Each entry represents a database name

Definition at line 872 of file class.t3lib_db.php.

References sql_select_db().

t3lib_DB::admin_get_fields (  $  tableName  ) 
 

Returns information about each field in the $table (quering the DBMS) In a DBAL this should look up the right handler for the table and return compatible information This function is important not only for the Install Tool but probably for DBALs as well since they might need to look up table specific information in order to construct correct queries. In such cases this information should probably be cached for quick delivery

Parameters:
string Table name
Returns:
array Field information in an associative array with fieldname => field row

Definition at line 909 of file class.t3lib_db.php.

t3lib_DB::admin_get_keys (  $  tableName  ) 
 

Returns information about each index key in the $table (quering the DBMS) In a DBAL this should look up the right handler for the table and return compatible information

Parameters:
string Table name
Returns:
array Key information in a numeric array

Definition at line 927 of file class.t3lib_db.php.

t3lib_DB::admin_get_tables (   ) 
 

Returns the list of tables from the default database, TYPO3_db (quering the DBMS) In a DBAL this method should 1) look up all tables from the DBMS of the _DEFAULT handler and then 2) add all tables *configured* to be managed by other handlers Usage count/core: 2

Returns:
array Tables in an array (tablename is in both key and value)

Definition at line 890 of file class.t3lib_db.php.

t3lib_DB::admin_query (  $  query  ) 
 

mysql() wrapper function, used by the Install Tool and EM for all queries regarding management of the database! Usage count/core: 10

Parameters:
string Query to execute
Returns:
pointer Result pointer

Definition at line 945 of file class.t3lib_db.php.

References debug().

t3lib_DB::cleanIntArray (  $  arr  ) 
 

Will convert all values in the one-dimentional array to integers. Useful when you want to make sure an array contains only integers before imploding them in a select-list. Usage count/core: 7

Parameters:
array Array with values
Returns:
array The input array with all values passed through intval()
See also:
cleanIntList()

Definition at line 568 of file class.t3lib_db.php.

t3lib_DB::cleanIntList (  $  list  ) 
 

Will force all entries in the input comma list to integers Useful when you want to make sure a commalist of supposed integers really contain only integers; You want to know that when you don't trust content that could go into an SQL statement. Usage count/core: 6

Parameters:
string List of comma-separated values which should be integers
Returns:
string The input list but with every value passed through intval()
See also:
cleanIntArray()

Definition at line 584 of file class.t3lib_db.php.

References t3lib_div::intExplode().

t3lib_DB::debug (  $  func  ) 
 

Debug function: Outputs error if any

Parameters:
string Function calling debug()
Returns:
void

Definition at line 972 of file class.t3lib_db.php.

References sql_error(), and t3lib_div::view_array().

Referenced by admin_query(), exec_DELETEquery(), exec_INSERTquery(), exec_SELECTgetRows(), exec_SELECTquery(), exec_UPDATEquery(), sql(), and sql_query().

t3lib_DB::DELETEquery (  $  table,
$  where
) 
 

Creates a DELETE SQL-statement for $table where $where-clause Usage count/core: 3

Parameters:
string See exec_DELETEquery()
string See exec_DELETEquery()
Returns:
string Full SQL query for DELETE use exec_DELETEquery() instead if possible!

Definition at line 409 of file class.t3lib_db.php.

Referenced by exec_DELETEquery().

t3lib_DB::exec_DELETEquery (  $  table,
$  where
) 
 

Creates and executes a DELETE SQL-statement for $table where $where-clause Usage count/core: 40

Parameters:
string Database tablename
string WHERE clause, eg. "uid=1". NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself!
Returns:
pointer MySQL result pointer / DBAL object

Definition at line 199 of file class.t3lib_db.php.

References debug(), and DELETEquery().

t3lib_DB::exec_INSERTquery (  $  table,
$  fields_values
) 
 

Creates and executes an INSERT SQL-statement for $table from the array with field/value pairs $fields_values. Using this function specifically allows us to handle BLOB and CLOB fields depending on DB Usage count/core: 47

Parameters:
string Table name
array Field values as key=>value pairs. Values will be escaped internally. Typically you would fill an array like "$insertFields" with 'fieldname'=>'value' and pass it to this function as argument.
Returns:
pointer MySQL result pointer / DBAL object

Definition at line 169 of file class.t3lib_db.php.

References debug(), and INSERTquery().

t3lib_DB::exec_SELECT_mm_query (  $  select,
$  local_table,
$  mm_table,
$  foreign_table,
$  whereClause = '',
$  groupBy = '',
$  orderBy = '',
$  limit = ''
) 
 

Creates and executes a SELECT query, selecting fields ($select) from two/three tables joined Use $mm_table together with $local_table or $foreign_table to select over two tables. Or use all three tables to select the full MM-relation. The JOIN is done with [$local_table].uid <--> [$mm_table].uid_local / [$mm_table].uid_foreign <--> [$foreign_table].uid The function is very useful for selecting MM-relations between tables adhering to the MM-format used by TCE (TYPO3 Core Engine). See the section on $TCA in Inside TYPO3 for more details.

Usage: 12 (spec. ext. sys_action, sys_messages, sys_todos)

Parameters:
string Field list for SELECT
string Tablename, local table
string Tablename, relation table
string Tablename, foreign table
string Optional additional WHERE clauses put in the end of the query. NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself! DO NOT PUT IN GROUP BY, ORDER BY or LIMIT!
string Optional GROUP BY field(s), if none, supply blank string.
string Optional ORDER BY field(s), if none, supply blank string.
string Optional LIMIT value ([begin,]max), if none, supply blank string.
Returns:
pointer MySQL result pointer / DBAL object
See also:
exec_SELECTquery()

Definition at line 243 of file class.t3lib_db.php.

t3lib_DB::exec_SELECT_queryArray (  $  queryParts  ) 
 

Executes a select based on input query parts array

Usage: 9

Parameters:
array Query parts array
Returns:
pointer MySQL select result pointer / DBAL object
See also:
exec_SELECTquery()

Definition at line 266 of file class.t3lib_db.php.

References exec_SELECTquery().

t3lib_DB::exec_SELECTgetRows (  $  select_fields,
$  from_table,
$  where_clause,
$  groupBy = '',
$  orderBy = '',
$  limit = '',
$  uidIndexField = ''
) 
 

Creates and executes a SELECT SQL-statement AND traverse result set and returns array with records in.

Parameters:
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
string If set, the result array will carry this field names value as index. Requires that field to be selected of course!
Returns:
array Array of rows.

Definition at line 289 of file class.t3lib_db.php.

References debug(), exec_SELECTquery(), sql_error(), and sql_fetch_assoc().

t3lib_DB::exec_SELECTquery (  $  select_fields,
$  from_table,
$  where_clause,
$  groupBy = '',
$  orderBy = '',
$  limit = ''
) 
 

Creates and executes a SELECT SQL-statement Using this function specifically allow us to handle the LIMIT feature independently of DB. Usage count/core: 340

Parameters:
string List of fields to select from the table. This is what comes right after "SELECT ...". Required value.
string Table(s) from which to select. This is what comes right after "FROM ...". Required value.
string Optional additional WHERE clauses put in the end of the query. NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself! DO NOT PUT IN GROUP BY, ORDER BY or LIMIT!
string Optional GROUP BY field(s), if none, supply blank string.
string Optional ORDER BY field(s), if none, supply blank string.
string Optional LIMIT value ([begin,]max), if none, supply blank string.
Returns:
pointer MySQL result pointer / DBAL object

Definition at line 218 of file class.t3lib_db.php.

References debug(), and SELECTquery().

Referenced by exec_SELECT_queryArray(), and exec_SELECTgetRows().

t3lib_DB::exec_UPDATEquery (  $  table,
$  where,
$  fields_values
) 
 

Creates and executes an UPDATE SQL-statement for $table where $where-clause (typ. 'uid=...') from the array with field/value pairs $fields_values. Using this function specifically allow us to handle BLOB and CLOB fields depending on DB Usage count/core: 50

Parameters:
string Database tablename
string WHERE clause, eg. "uid=1". NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself!
array Field values as key=>value pairs. Values will be escaped internally. Typically you would fill an array like "$updateFields" with 'fieldname'=>'value' and pass it to this function as argument.
Returns:
pointer MySQL result pointer / DBAL object

Definition at line 185 of file class.t3lib_db.php.

References debug(), and UPDATEquery().

t3lib_DB::fullQuoteStr (  $  str,
$  table
) 
 

Escaping and quoting values for SQL statements. Usage count/core: 100

Parameters:
string Input string
string Table name for which to quote string. Just enter the table that the field-value is selected from (and any DBAL will look up which handler to use and then how to quote the string!).
Returns:
string Output string; Wrapped in single quotes and quotes in the string (" / ') and \ will be backslashed (or otherwise based on DBAL handler)
See also:
quoteStr()

Definition at line 539 of file class.t3lib_db.php.

Referenced by INSERTquery(), and UPDATEquery().

t3lib_DB::INSERTquery (  $  table,
$  fields_values
) 
 

Creates an INSERT SQL-statement for $table from the array with field/value pairs $fields_values. Usage count/core: 4

Parameters:
string See exec_INSERTquery()
array See exec_INSERTquery()
Returns:
string Full SQL query for INSERT (unless $fields_values does not contain any elements in which case it will be false) use exec_INSERTquery() instead if possible!

Definition at line 334 of file class.t3lib_db.php.

References fullQuoteStr().

Referenced by exec_INSERTquery().

t3lib_DB::listQuery (  $  field,
$  value,
$  table
) 
 

Returns a WHERE clause that can find a value ($value) in a list field ($field) For instance a record in the database might contain a list of numbers, "34,234,5" (with no spaces between). This query would be able to select that record based on the value "34", "234" or "5" regardless of their positioni in the list (left, middle or right). Is nice to look up list-relations to records or files in TYPO3 database tables.

Parameters:
string Field name
string Value to find in list
string Table in which we are searching (for DBAL detection of quoteStr() method)
Returns:
string WHERE clause for a query

Definition at line 479 of file class.t3lib_db.php.

References quoteStr().

t3lib_DB::quoteStr (  $  str,
$  table
) 
 

Substitution for PHP function "addslashes()" Use this function instead of the PHP addslashes() function when you build queries - this will prepare your code for DBAL. NOTICE: You must wrap the output of this function in SINGLE QUOTES to be DBAL compatible. Unless you have to apply the single quotes yourself you should rather use ->fullQuoteStr()!

Usage count/core: 20

Parameters:
string Input string
string Table name for which to quote string. Just enter the table that the field-value is selected from (and any DBAL will look up which handler to use and then how to quote the string!).
Returns:
string Output string; Quotes (" / ') and \ will be backslashed (or otherwise based on DBAL handler)
See also:
quoteStr()

Definition at line 555 of file class.t3lib_db.php.

Referenced by listQuery().

t3lib_DB::searchQuery (  $  searchWords,
$  fields,
$  table
) 
 

Returns a WHERE clause which will make an AND search for the words in the $searchWords array in any of the fields in array $fields.

Parameters:
array Array of search words
array Array of fields
string Table in which we are searching (for DBAL detection of quoteStr() method)
Returns:
string WHERE clause for search

Definition at line 493 of file class.t3lib_db.php.

t3lib_DB::SELECTquery (  $  select_fields,
$  from_table,
$  where_clause,
$  groupBy = '',
$  orderBy = '',
$  limit = ''
) 
 

Creates a SELECT SQL-statement Usage count/core: 11

Parameters:
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
string See exec_SELECTquery()
Returns:
string Full SQL query for SELECT use exec_SELECTquery() instead if possible!

Definition at line 438 of file class.t3lib_db.php.

Referenced by exec_SELECTquery().

t3lib_DB::splitGroupOrderLimit (  $  str  ) 
 

Takes the last part of a query, eg. "... uid=123 GROUP BY title ORDER BY title LIMIT 5,2" and splits each part into a table (WHERE, GROUPBY, ORDERBY, LIMIT) Work-around function for use where you know some userdefined end to an SQL clause is supplied and you need to separate these factors. Usage count/core: 13

Parameters:
string Input string
Returns:
array

Definition at line 624 of file class.t3lib_db.php.

t3lib_DB::sql (  $  db,
$  query
) 
 

Executes query mysql() wrapper function DEPRECIATED - use exec_* functions from this class instead! Usage count/core: 9

Parameters:
string Database name
string Query to execute
Returns:
pointer Result pointer / DBAL object

Definition at line 689 of file class.t3lib_db.php.

References debug().

t3lib_DB::sql_affected_rows (   ) 
 

Returns the number of rows affected by the last INSERT, UPDATE or DELETE query mysql_affected_rows() wrapper function Usage count/core: 1

Returns:
integer Number of rows affected by last query

Definition at line 787 of file class.t3lib_db.php.

t3lib_DB::sql_data_seek (  $  res,
$  seek
) 
 

Move internal result pointer mysql_data_seek() wrapper function Usage count/core: 3

Parameters:
pointer MySQL result pointer (of SELECT query) / DBAL object
integer Seek result number.
Returns:
boolean Returns TRUE on success or FALSE on failure.

Definition at line 800 of file class.t3lib_db.php.

t3lib_DB::sql_error (   ) 
 

Returns the error status on the last sql() execution mysql_error() wrapper function Usage count/core: 32

Returns:
string MySQL error string.

Definition at line 716 of file class.t3lib_db.php.

Referenced by debug(), and exec_SELECTgetRows().

t3lib_DB::sql_fetch_assoc (  $  res  ) 
 

Returns an associative array that corresponds to the fetched row, or FALSE if there are no more rows. mysql_fetch_assoc() wrapper function Usage count/core: 307

Parameters:
pointer MySQL result pointer (of SELECT query) / DBAL object
Returns:
array Associative array of result row.

Definition at line 740 of file class.t3lib_db.php.

Referenced by exec_SELECTgetRows().

t3lib_DB::sql_fetch_row (  $  res  ) 
 

Returns an array that corresponds to the fetched row, or FALSE if there are no more rows. The array contains the values in numerical indices. mysql_fetch_row() wrapper function Usage count/core: 56

Parameters:
pointer MySQL result pointer (of SELECT query) / DBAL object
Returns:
array Array with result rows.

Definition at line 753 of file class.t3lib_db.php.

t3lib_DB::sql_field_type (  $  res,
$  pointer
) 
 

Get the type of the specified field in a result mysql_field_type() wrapper function Usage count/core: 2

Parameters:
pointer MySQL result pointer (of SELECT query) / DBAL object
integer Field index.
Returns:
string Returns the name of the specified field index

Definition at line 813 of file class.t3lib_db.php.

t3lib_DB::sql_free_result (  $  res  ) 
 

Free result memory mysql_free_result() wrapper function Usage count/core: 3

Parameters:
pointer MySQL result pointer to free / DBAL object
Returns:
boolean Returns TRUE on success or FALSE on failure.

Definition at line 765 of file class.t3lib_db.php.

t3lib_DB::sql_insert_id (   ) 
 

Get the ID generated from the previous INSERT operation mysql_insert_id() wrapper function Usage count/core: 13

Returns:
integer The uid of the last inserted record.

Definition at line 776 of file class.t3lib_db.php.

t3lib_DB::sql_num_rows (  $  res  ) 
 

Returns the number of selected rows. mysql_num_rows() wrapper function Usage count/core: 85

Parameters:
pointer MySQL result pointer (of SELECT query) / DBAL object
Returns:
integer Number of resulting rows.

Definition at line 728 of file class.t3lib_db.php.

t3lib_DB::sql_pconnect (  $  TYPO3_db_host,
$  TYPO3_db_username,
$  TYPO3_db_password
) 
 

Open a (persistent) connection to a MySQL server mysql_pconnect() wrapper function Usage count/core: 12

Parameters:
string Database host IP/domain
string Username to connect with.
string Password to connect with.
Returns:
pointer Returns a positive MySQL persistent link identifier on success, or FALSE on error.

Definition at line 827 of file class.t3lib_db.php.

t3lib_DB::sql_query (  $  query  ) 
 

Executes query mysql_query() wrapper function Usage count/core: 1

Parameters:
string Query to execute
Returns:
pointer Result pointer / DBAL object

Definition at line 703 of file class.t3lib_db.php.

References debug().

t3lib_DB::sql_select_db (  $  TYPO3_db  ) 
 

Select a MySQL database mysql_select_db() wrapper function Usage count/core: 8

Parameters:
string Database to connect to.
Returns:
boolean Returns TRUE on success or FALSE on failure.

Definition at line 844 of file class.t3lib_db.php.

Referenced by admin_get_dbs().

t3lib_DB::stripGroupBy (  $  str  ) 
 

Removes the prefix "GROUP BY" from the input string. This function is used when you call the SELECTquery() function and want to pass the GROUP BY parameter by can't guarantee that "GROUP BY" is not prefixed. Generally; This function provides a work-around to the situation where you cannot pass only the fields by which to order the result. Usage count/core: 1

Parameters:
string eg. "GROUP BY title, uid"
Returns:
string eg. "title, uid"
See also:
exec_SELECTquery(), stripOrderBy()

Definition at line 612 of file class.t3lib_db.php.

t3lib_DB::stripOrderBy (  $  str  ) 
 

Removes the prefix "ORDER BY" from the input string. This function is used when you call the exec_SELECTquery() function and want to pass the ORDER BY parameter by can't guarantee that "ORDER BY" is not prefixed. Generally; This function provides a work-around to the situation where you cannot pass only the fields by which to order the result. Usage count/core: 11

Parameters:
string eg. "ORDER BY title, uid"
Returns:
string eg. "title, uid"
See also:
exec_SELECTquery(), stripGroupBy()

Definition at line 598 of file class.t3lib_db.php.

t3lib_DB::UPDATEquery (  $  table,
$  where,
$  fields_values
) 
 

Creates an UPDATE SQL-statement for $table where $where-clause (typ. 'uid=...') from the array with field/value pairs $fields_values. Usage count/core: 6

Parameters:
string See exec_UPDATEquery()
string See exec_UPDATEquery()
array See exec_UPDATEquery()
Returns:
string Full SQL query for UPDATE (unless $fields_values does not contain any elements in which case it will be false) use exec_UPDATEquery() instead if possible!

Definition at line 370 of file class.t3lib_db.php.

References fullQuoteStr().

Referenced by exec_UPDATEquery().

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

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