common-db.php File Reference

This file contains common database functions. More...

Go to the source code of this file.

Functions
	DBconnect ($sysconfdir, $options="", $exitOnFail=true)
	Connect to database engine. This is a no-op if $PG_CONN already has a value. More...
	GetSingleRec ($Table, $Where="")
	Retrieve a single database record. More...
	DB2KeyValArray ($Table, $KeyCol, $ValCol, $Where="")
	Create an associative array by using table rows to source the key/value pairs. More...
	DB2ValArray ($Table, $ValCol, $Uniq=false, $Where="")
	Create an array by using table rows to source the values. More...
	DBCheckResult ($result, $sql, $filenm, $lineno)
	Check the postgres result for unexpected errors. If found, treat them as fatal. More...
	DB_TableExists ($tableName)
	Check if table exists. More...
	DB_ColExists ($tableName, $colName, $DBName='fossology')
	Check if a column exists. More...
	DB_ConstraintExists ($ConstraintName, $DBName='fossology')
	Check if a constraint exists. More...
	GetLastSeq ($seqname, $tablename)
	Get last sequence number. More...

Detailed Description

This file contains common database functions.

Definition in file common-db.php.

Function Documentation

DB2KeyValArray	(		$Table,
			$KeyCol,
			$ValCol,
			$Where = ""
	)

Create an associative array by using table rows to source the key/value pairs.

Parameters

string	$Table	tablename
string	$KeyCol	Key column name in $Table
string	$ValCol	Value column name in $Table
string	$Where	SQL where clause (optional) This can really be any clause following the table name in the sql

Returns

Array[Key] = Val for each row in the table. May be empty if no table rows or Where results in no rows.

Definition at line 132 of file common-db.php.

DB2ValArray	(		$Table,
			$ValCol,
			$Uniq = false,
			$Where = ""
	)

Create an array by using table rows to source the values.

Parameters

string	$Table	tablename
string	$ValCol	Value column name in $Table
string	$Uniq	Sort out duplicates
string	$Where	SQL where clause (optional) This can really be any clause following the table name in the sql

Returns

Array[Key] = Val for each row in the table. May be empty if no table rows or Where results in no rows.

Definition at line 164 of file common-db.php.

DB_ColExists	(		$tableName,
			$colName,
			$DBName = 'fossology'
	)

Check if a column exists.

Note

This is postgresql specific.

Parameters

string	$tableName	Table to check in
string	$colName	Column to check
string	$DBName	Database name, default "fossology"

Returns

1 if column exists, 0 if not.

Definition at line 251 of file common-db.php.

DB_ConstraintExists	(		$ConstraintName,
			$DBName = 'fossology'
	)

Check if a constraint exists.

Note

This is postgresql specific.

Parameters

string	$ConstraintName	Constraint to check
string	$DBName	Database name, default "fossology"

Returns

True if constraint exists, False if not.

Definition at line 275 of file common-db.php.

DB_TableExists

(

$tableName

)

Check if table exists.

Note

This is postgresql specific.

Parameters

string

$tableName

Table to check

Returns

1 if table exists, 0 if not.

Definition at line 225 of file common-db.php.

DBCheckResult	(		$result,
			$sql,
			$filenm,
			$lineno
	)

Check the postgres result for unexpected errors. If found, treat them as fatal.

Parameters

	$result	command result object
string	$sql	SQL command (optional)
string	$filenm	File name (FILE)
int	$lineno	Line number of the caller (LINE)

Returns

None, prints error, sql and line number, then exits(1)

Examples:

/home/travis/build/GMishx/fossology/src/www/ui/ui-picker.php.

Definition at line 198 of file common-db.php.

DBconnect	(		$sysconfdir,
			$options = "",
			$exitOnFail = true
	)

Connect to database engine. This is a no-op if $PG_CONN already has a value.

Parameters

string	$sysconfdir	fossology configuration directory (location of Db.conf)
string	$options	an optional list of attributes for connecting to the database. E.g.: "dbname=text host=text user=text password=text"
bool	$exitOnFail	true (default) to print error and call exit on failure false to return $PG_CONN === false on failure

If $options is empty, then connection parameters will be read from Db.conf.

Returns

Success: $PG_CONN, the postgres connection object
Failure: Error message is printed

Definition at line 44 of file common-db.php.

GetLastSeq	(		$seqname,
			$tablename
	)

Get last sequence number.

This is typically used to get the primary key of a newly inserted record. This must be called immediately after the insert.

Parameters

string	$seqname	Sequence Name of key just added
string	$tablename	Table containing $seqname

Returns

Current sequence number (i.e. the primary key of the rec just added)

Definition at line 304 of file common-db.php.

GetSingleRec	(		$Table,
			$Where = ""
	)

Retrieve a single database record.

This function does a:

"SELECT * from $Table $Where limit 1"

and returns the result as an associative array.

Parameters

string	$Table	Table name
string	$Where	SQL where clause e.g. "where uploadtree_pk=2". Though a WHERE clause is the typical use, $Where can really be any options following the sql tablename.

Returns

Associative array for this record. May be empty if no record found.

Examples:

/home/travis/build/GMishx/fossology/src/www/ui/ui-picker.php.

Definition at line 102 of file common-db.php.