/
database_api.php
1186 lines (1048 loc) · 36.5 KB
/
database_api.php
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<?php
# MantisBT - A PHP based bugtracking system
# MantisBT is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# MantisBT is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with MantisBT. If not, see <http://www.gnu.org/licenses/>.
/**
* Database API
*
* @package CoreAPI
* @subpackage DatabaseAPI
* @copyright Copyright 2000 - 2002 Kenzaburo Ito - kenito@300baud.org
* @copyright Copyright 2002 MantisBT Team - mantisbt-dev@lists.sourceforge.net
* @link http://www.mantisbt.org
*
* @uses config_api.php
* @uses constant_inc.php
* @uses error_api.php
* @uses logging_api.php
* @uses utility_api.php
* @uses adodb/adodb.inc.php
*/
require_api( 'config_api.php' );
require_api( 'constant_inc.php' );
require_api( 'error_api.php' );
require_api( 'logging_api.php' );
require_api( 'utility_api.php' );
define( 'ADODB_DIR', config_get( 'library_path' ) . 'adodb' );
require_lib( 'adodb' . DIRECTORY_SEPARATOR . 'adodb.inc.php' );
/**
* An array in which all executed queries are stored. This is used for profiling
* @global array $g_queries_array
*/
$g_queries_array = array();
/**
* Stores whether a database connection was succesfully opened.
* @global bool $g_db_connected
*/
$g_db_connected = false;
/**
* Store whether to log queries ( used for show_queries_count/query list)
* @global bool $g_db_log_queries
*/
$g_db_log_queries = ( 0 != ( config_get_global( 'log_level' ) & LOG_DATABASE ) );
/**
* set adodb fetch mode
* @global bool $ADODB_FETCH_MODE
*/
if( db_is_oracle() ) {
# To get non-empty field values in case of oci8 from GetRowAssoc() indexed result returning must be enabled
$ADODB_FETCH_MODE = ADODB_FETCH_BOTH;
} else {
$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
}
/**
* Tracks the query parameter count for use with db_aparam:().
* @global int $g_db_param_count
*/
$g_db_param_count = 0;
/**
* Open a connection to the database.
* @param string $p_dsn Database connection string ( specified instead of other params)
* @param string $p_hostname Database server hostname
* @param string $p_username database server username
* @param string $p_password database server password
* @param string $p_database_name database name
* @param string $p_db_schema Schema name (only used if database type is DB2)
* @param bool $p_pconnect Use a Persistent connection to database
* @return bool indicating if the connection was successful
*/
function db_connect( $p_dsn, $p_hostname = null, $p_username = null, $p_password = null, $p_database_name = null, $p_db_schema = null, $p_pconnect = false ) {
global $g_db_connected, $g_db;
$t_db_type = config_get_global( 'db_type' );
if( !db_check_database_support( $t_db_type ) ) {
error_parameters( 0, 'PHP Support for database is not enabled' );
trigger_error( ERROR_DB_CONNECT_FAILED, ERROR );
}
if( empty( $p_dsn ) ) {
$g_db = ADONewConnection( $t_db_type );
if( $p_pconnect ) {
$t_result = $g_db->PConnect( $p_hostname, $p_username, $p_password, $p_database_name );
} else {
$t_result = $g_db->Connect( $p_hostname, $p_username, $p_password, $p_database_name );
}
} else {
$g_db = ADONewConnection( $p_dsn );
$t_result = $g_db->IsConnected();
}
if( $t_result ) {
// For MySQL, the charset for the connection needs to be specified.
if( db_is_mysql() ) {
/** @todo Is there a way to translate any charset name to MySQL format? e.g. remote the dashes? */
/** @todo Is this needed for other databases? */
db_query_bound( 'SET NAMES UTF8' );
} else if( db_is_db2() && $p_db_schema !== null && !is_blank( $p_db_schema ) ) {
$t_result2 = db_query_bound( 'set schema ' . $p_db_schema );
if( $t_result2 === false ) {
db_error();
trigger_error( ERROR_DB_CONNECT_FAILED, ERROR );
return false;
}
}
} else {
db_error();
trigger_error( ERROR_DB_CONNECT_FAILED, ERROR );
return false;
}
$g_db_connected = true;
return true;
}
/**
* Returns whether a connection to the database exists
* @global stores database connection state
* @return bool indicating if the a database connection has been made
*/
function db_is_connected() {
global $g_db_connected;
return $g_db_connected;
}
/**
* Returns whether php support for a database is enabled
* @return bool indicating if php current supports the given database type
*/
function db_check_database_support( $p_db_type ) {
$t_support = false;
switch( $p_db_type ) {
case 'mysql':
$t_support = function_exists( 'mysql_connect' );
break;
case 'mysqli':
$t_support = function_exists( 'mysqli_connect' );
break;
case 'pgsql':
$t_support = function_exists( 'pg_connect' );
break;
case 'mssql':
$t_support = function_exists( 'mssql_connect' );
break;
case 'mssqlnative':
$t_support = function_exists( 'sqlsrv_connect' );
break;
case 'oci8':
$t_support = function_exists( 'OCILogon' );
break;
case 'db2':
$t_support = function_exists( 'db2_connect' );
break;
case 'odbc_mssql':
$t_support = function_exists( 'odbc_connect' );
break;
default:
$t_support = false;
}
return $t_support;
}
/**
* Checks if the database driver is MySQL
* @return bool true if mysql
*/
function db_is_mysql() {
$t_db_type = config_get_global( 'db_type' );
switch( $t_db_type ) {
case 'mysql':
case 'mysqli':
return true;
}
return false;
}
/**
* Checks if the database driver is PostgreSQL
* @return bool true if postgres
*/
function db_is_pgsql() {
$t_db_type = config_get_global( 'db_type' );
switch( $t_db_type ) {
case 'postgres':
case 'postgres7':
case 'pgsql':
return true;
}
return false;
}
/**
* Checks if the database driver is MS SQL
* @return bool true if mssql
*/
function db_is_mssql() {
$t_db_type = config_get_global( 'db_type' );
switch( $t_db_type ) {
case 'mssql':
case 'mssqlnative':
case 'odbc_mssql':
return true;
}
return false;
}
/**
* Checks if the database driver is DB2
* @return bool true if db2
*/
function db_is_db2() {
$t_db_type = config_get_global( 'db_type' );
switch( $t_db_type ) {
case 'db2':
return true;
}
return false;
}
/**
* Checks if the database driver is Oracle
* @return bool true if oracle
*/
function db_is_oracle() {
$t_db_type = config_get_global( 'db_type' );
switch( $t_db_type ) {
case 'oci8':
return true;
}
return false;
}
/**
* Validates that the given identifier's length is OK for the db platform
* Triggers an error if the identifier is too long
* @param string p_identifier Identifier to check
*/
function db_check_identifier_size( $p_identifier ) {
# Oracle does not support long object names (30 chars max)
if( db_is_oracle() && 30 < strlen( $p_identifier ) ) {
error_parameters( $p_identifier );
trigger_error( ERROR_DB_IDENTIFIER_TOO_LONG, ERROR );
}
}
/**
* execute query, requires connection to be opened
* An error will be triggered if there is a problem executing the query.
* @global array of previous executed queries for profiling
* @global adodb database connection object
* @global boolean indicating whether queries array is populated
* @param string $p_query Query string to execute
* @param int $p_limit Number of results to return
* @param int $p_offset offset query results for paging
* @return ADORecordSet|bool adodb result set or false if the query failed.
* @deprecated db_query_bound should be used in preference to this function. This function will likely be removed in 1.2.0 final
*/
function db_query( $p_query, $p_limit = -1, $p_offset = -1 ) {
global $g_queries_array, $g_db, $g_db_log_queries;
$t_start = microtime(true);
if( db_is_oracle() ) {
$p_query = db_oracle_adapt_query_syntax( $p_query );
}
if(( $p_limit != -1 ) || ( $p_offset != -1 ) ) {
$t_result = $g_db->SelectLimit( $p_query, $p_limit, $p_offset );
} else {
$t_result = $g_db->Execute( $p_query );
}
$t_elapsed = number_format( microtime(true) - $t_start, 4 );
if( ON == $g_db_log_queries ) {
log_event( LOG_DATABASE, array( $p_query, $t_elapsed), debug_backtrace() );
array_push( $g_queries_array, array( $p_query, $t_elapsed ) );
} else {
array_push( $g_queries_array, array( '', $t_elapsed ) );
}
if( !$t_result ) {
db_error( $p_query );
trigger_error( ERROR_DB_QUERY_FAILED, ERROR );
return false;
} else {
return $t_result;
}
}
/**
* execute query, requires connection to be opened
* An error will be triggered if there is a problem executing the query.
* @global array of previous executed queries for profiling
* @global adodb database connection object
* @global boolean indicating whether queries array is populated
* @param string $p_query Parameterlised Query string to execute
* @param array $arr_parms array of parameters matching $p_query
* @param int $p_limit Number of results to return
* @param int $p_offset offset query results for paging
* @return ADORecordSet|bool adodb result set or false if the query failed.
*/
function db_query_bound( $p_query, $arr_parms = null, $p_limit = -1, $p_offset = -1 ) {
global $g_queries_array, $g_db, $g_db_log_queries, $g_db_param_count;
$t_db_type = config_get_global( 'db_type' );
static $s_check_params;
if( $s_check_params === null ) {
$s_check_params = ( db_is_pgsql() || $t_db_type == 'odbc_mssql' || $t_db_type == 'mssqlnative');
}
$t_start = microtime(true);
if( $arr_parms != null && $s_check_params ) {
$params = count( $arr_parms );
for( $i = 0;$i < $params;$i++ ) {
if( $arr_parms[$i] === false ) {
$arr_parms[$i] = 0;
}
elseif( $arr_parms[$i] === true && $t_db_type == 'mssqlnative' ) {
$arr_parms[$i] = 1;
}
}
}
if( db_is_oracle() ) {
$p_query = db_oracle_adapt_query_syntax( $p_query , $arr_parms );
}
if(( $p_limit != -1 ) || ( $p_offset != -1 ) ) {
$t_result = $g_db->SelectLimit( $p_query, $p_limit, $p_offset, $arr_parms );
} else {
$t_result = $g_db->Execute( $p_query, $arr_parms );
}
$t_elapsed = number_format( microtime(true) - $t_start, 4 );
if( ON == $g_db_log_queries ) {
$lastoffset = 0;
$i = 0;
if( !( is_null( $arr_parms ) || empty( $arr_parms ) ) ) {
while( preg_match( '/\?/', $p_query, $matches, PREG_OFFSET_CAPTURE, $lastoffset ) ) {
$matches = $matches[0];
# Realign the offset returned by preg_match as it is byte-based,
# which causes issues with UTF-8 characters in the query string
# (e.g. from custom fields names)
$t_utf8_offset = utf8_strlen( substr( $p_query, 0, $matches[1]), mb_internal_encoding() );
if( $i <= count( $arr_parms ) ) {
if( is_null( $arr_parms[$i] ) ) {
$replace = 'NULL';
}
else if( is_string( $arr_parms[$i] ) ) {
$replace = "'" . $arr_parms[$i] . "'";
}
else if( is_integer( $arr_parms[$i] ) || is_float( $arr_parms[$i] ) ) {
$replace = (float) $arr_parms[$i];
}
else if( is_bool( $arr_parms[$i] ) ) {
switch( $t_db_type ) {
case 'pgsql':
$replace = "'" . $arr_parms[$i] . "'";
break;
default:
$replace = $arr_parms[$i];
break;
}
} else {
echo( "Invalid argument type passed to query_bound(): " . $i + 1 );
exit( 1 );
}
$p_query = utf8_substr( $p_query, 0, $t_utf8_offset ) . $replace . utf8_substr( $p_query, $t_utf8_offset + utf8_strlen( $matches[0] ) );
$lastoffset = $matches[1] + strlen( $replace ) + 1;
} else {
$lastoffset = $matches[1] + 1;
}
$i++;
}
}
$t_log_msg = array( $p_query, $t_elapsed );
log_event( LOG_DATABASE, $t_log_msg, debug_backtrace() );
array_push( $g_queries_array, $t_log_msg );
} else {
array_push( $g_queries_array, array( '', $t_elapsed ) );
}
# We can't reset the counter because we have queries being built
# and executed while building bigger queries in filter_api. -jreese
# $g_db_param_count = 0;
if( !$t_result ) {
db_error( $p_query );
trigger_error( ERROR_DB_QUERY_FAILED, ERROR );
return false;
} else {
return $t_result;
}
}
/**
* Generate a string to insert a parameter into a database query string
* @return string 'wildcard' matching a paramater in correct ordered format for the current database.
*/
function db_param() {
global $g_db;
global $g_db_param_count;
return $g_db->Param( $g_db_param_count++ );
}
/**
* Retrieve number of rows returned for a specific database query
* @param ADORecordSet $p_result Database Query Record Set to retrieve record count for.
* @return int Record Count
*/
function db_num_rows( $p_result ) {
global $g_db;
return $p_result->RecordCount();
}
/**
* Retrieve number of rows affected by a specific database query
* @param ADORecordSet $p_result Database Query Record Set to retrieve affected rows for.
* @return int Affected Rows
*/
function db_affected_rows() {
global $g_db;
return $g_db->Affected_Rows();
}
/**
* Retrieve the next row returned from a specific database query
* @param bool|ADORecordSet $p_result Database Query Record Set to retrieve next result for.
* @return array Database result
*/
function db_fetch_array( &$p_result ) {
global $g_db, $g_db_type;
if( $p_result->EOF ) {
return false;
}
# mysql obeys FETCH_MODE_BOTH, hence ->fields works, other drivers do not support this
if( $g_db_type == 'mysql' || $g_db_type == 'odbc_mssql' || $g_db_type == 'mssqlnative' ) {
$t_array = $p_result->fields;
$p_result->MoveNext();
return $t_array;
} else {
$t_row = $p_result->GetRowAssoc( false );
static $t_array_result;
static $t_array_fields;
# Oci8 returns null values for empty strings
if( db_is_oracle() ) {
foreach( $t_row as &$t_value ) {
if( !isset( $t_value ) ) {
$t_value = '';
}
}
}
if ($t_array_result != $p_result) {
// new query
$t_array_result = $p_result;
$t_array_fields = null;
} else {
if ( $t_array_fields === null ) {
$p_result->MoveNext();
return $t_row;
}
}
$t_convert = false;
$t_fieldcount = $p_result->FieldCount();
for( $i = 0; $i < $t_fieldcount; $i++ ) {
if (isset( $t_array_fields[$i] ) ) {
$t_field = $t_array_fields[$i];
} else {
$t_field = $p_result->FetchField( $i );
$t_array_fields[$i] = $t_field;
}
switch( $t_field->type ) {
case 'bool':
switch( $t_row[$t_field->name] ) {
case 'f':
$t_row[$t_field->name] = false;
break;
case 't':
$t_row[$t_field->name] = true;
break;
}
$t_convert= true;
break;
default :
break;
}
}
if ( $t_convert == false ) {
$t_array_fields = null;
}
$p_result->MoveNext();
return $t_row;
}
}
/**
* Retrieve a result returned from a specific database query
* @param bool|ADORecordSet $p_result Database Query Record Set to retrieve next result for.
* @param int $p_index1 Row to retrieve (optional)
* @param int $p_index2 Column to retrieve (optional)
* @return mixed Database result
*/
function db_result( $p_result, $p_index1 = 0, $p_index2 = 0 ) {
global $g_db;
if( $p_result && ( db_num_rows( $p_result ) > 0 ) ) {
$p_result->Move( $p_index1 );
$t_result = $p_result->GetArray();
if( isset( $t_result[0][$p_index2] ) ) {
return $t_result[0][$p_index2];
}
// The numeric index doesn't exist. FETCH_MODE_ASSOC may have been used.
// Get 2nd dimension and make it numerically indexed
$t_result = array_values( $t_result[0] );
return $t_result[$p_index2];
}
return false;
}
/**
* return the last inserted id for a specific database table
* @param string $p_table a valid database table name
* @return int last successful insert id
*/
function db_insert_id( $p_table = null, $p_field = "id" ) {
global $g_db;
$t_db_type = config_get_global( 'db_type' );
if( isset( $p_table ) ) {
if( db_is_oracle() ) {
$query = "SELECT seq_" . $p_table . ".CURRVAL FROM DUAL";
} elseif( db_is_pgsql() ) {
$query = "SELECT currval('" . $p_table . "_" . $p_field . "_seq')";
}
if( isset( $query ) ) {
$result = db_query_bound( $query );
return db_result( $result );
}
}
if( db_is_mssql() ) {
$query = "SELECT IDENT_CURRENT('$p_table')";
$result = db_query_bound( $query );
return db_result( $result );
}
return $g_db->Insert_ID();
}
/**
* Check if the specified table exists.
* @param string $p_table_name a valid database table name
* @return bool indicating whether the table exists
*/
function db_table_exists( $p_table_name ) {
if( is_blank( $p_table_name ) ) {
return false;
}
$t_tables = db_get_table_list();
# Can't use in_array() since it is case sensitive
$t_table_name = utf8_strtolower( $p_table_name );
foreach( $t_tables as $t_current_table ) {
if( utf8_strtolower( $t_current_table ) == $t_table_name ) {
return true;
}
}
return false;
}
/**
* Check if the specified table index exists.
* @param string $p_table_name a valid database table name
* @param string $p_index_name a valid database index name
* @return bool indicating whether the index exists
*/
function db_index_exists( $p_table_name, $p_index_name ) {
global $g_db, $g_db_schema;
if( is_blank( $p_index_name ) || is_blank( $p_table_name ) ) {
return false;
// no index found
}
$t_indexes = $g_db->MetaIndexes( $p_table_name );
if( !empty( $t_indexes ) ) {
# Can't use in_array() since it is case sensitive
$t_index_name = utf8_strtolower( $p_index_name );
foreach( $t_indexes as $t_current_index_name => $t_current_index_obj ) {
if( utf8_strtolower( $t_current_index_name ) == $t_index_name ) {
return true;
}
}
}
return false;
}
/**
* Check if the specified field exists in a given table
* @param string $p_field_name a database field name
* @param string $p_table_name a valid database table name
* @return bool indicating whether the field exists
*/
function db_field_exists( $p_field_name, $p_table_name ) {
global $g_db;
$columns = db_field_names( $p_table_name );
return in_array( $p_field_name, $columns );
}
/**
* Retrieve list of fields for a given table
* @param string $p_table_name a valid database table name
* @return array array of fields on table
*/
function db_field_names( $p_table_name ) {
global $g_db;
$columns = $g_db->MetaColumnNames( $p_table_name );
return is_array( $columns ) ? $columns : array();
}
/**
* Returns the last error number. The error number is reset after every call to Execute(). If 0 is returned, no error occurred.
* @return int last error number
* @todo Use/Behaviour of this function should be reviewed before 1.2.0 final
*/
function db_error_num() {
global $g_db;
return $g_db->ErrorNo();
}
/**
* Returns the last status or error message. Returns the last status or error message. The error message is reset when Execute() is called.
* This can return a string even if no error occurs. In general you do not need to call this function unless an ADOdb function returns false on an error.
* @return string last error string
* @todo Use/Behaviour of this function should be reviewed before 1.2.0 final
*/
function db_error_msg() {
global $g_db;
return $g_db->ErrorMsg();
}
/**
* send both the error number and error message and query (optional) as paramaters for a triggered error
* @todo Use/Behaviour of this function should be reviewed before 1.2.0 final
*/
function db_error( $p_query = null ) {
if( null !== $p_query ) {
error_parameters( db_error_num(), db_error_msg(), $p_query );
} else {
error_parameters( db_error_num(), db_error_msg() );
}
}
/**
* close the connection.
* Not really necessary most of the time since a connection is automatically closed when a page finishes loading.
*/
function db_close() {
global $g_db;
$t_result = $g_db->Close();
}
/**
* prepare a string before DB insertion
* @param string $p_string unprepared string
* @return string prepared database query string
* @deprecated db_query_bound should be used in preference to this function. This function may be removed in 1.2.0 final
*/
function db_prepare_string( $p_string ) {
global $g_db;
$t_db_type = config_get_global( 'db_type' );
switch( $t_db_type ) {
case 'mssql':
case 'mssqlnative':
case 'odbc_mssql':
case 'ado_mssql':
if( ini_get( 'magic_quotes_sybase' ) ) {
return addslashes( $p_string );
} else {
ini_set( 'magic_quotes_sybase', true );
$t_string = addslashes( $p_string );
ini_set( 'magic_quotes_sybase', false );
return $t_string;
}
# just making a point with the superfluous break;s I know it does not execute after a return ;-)
break;
case 'db2':
$t_escaped = $g_db->qstr( $p_string, false );
return utf8_substr( $t_escaped, 1, utf8_strlen( $t_escaped ) - 2 );
break;
case 'mysql':
return mysql_real_escape_string( $p_string );
case 'mysqli':
# For some reason mysqli_escape_string( $p_string ) always returns an empty
# string. This is happening with PHP v5.0.2.
$t_escaped = $g_db->qstr( $p_string, false );
return utf8_substr( $t_escaped, 1, utf8_strlen( $t_escaped ) - 2 );
case 'postgres':
case 'postgres64':
case 'postgres7':
case 'pgsql':
return pg_escape_string( $p_string );
case 'oci8':
return $p_string;
default:
error_parameters( 'db_type', $t_db_type );
trigger_error( ERROR_CONFIG_OPT_INVALID, ERROR );
}
}
/**
* Prepare a binary string before DB insertion
* Use of this function is required for some DB types, to properly encode
* BLOB fields prior to calling db_query_bound() or db_query()
* @param string $p_string raw binary data
* @return string prepared database query string
*/
function db_prepare_binary_string( $p_string ) {
global $g_db;
$t_db_type = config_get_global( 'db_type' );
switch( $t_db_type ) {
case 'mssql':
case 'mssqlnative':
case 'odbc_mssql':
case 'ado_mssql':
$content = unpack( "H*hex", $p_string );
return '0x' . $content['hex'];
break;
case 'postgres':
case 'postgres64':
case 'postgres7':
case 'pgsql':
return $g_db->BlobEncode( $p_string );
break;
case 'oci8':
$content = unpack( "H*hex", $p_string );
return '\'' . $content['hex'] . '\'';
default:
return $p_string;
break;
}
}
/**
* prepare a int for database insertion.
* @param int $p_int integer
* @return int integer
* @deprecated db_query_bound should be used in preference to this function. This function may be removed in 1.2.0 final
* @todo Use/Behaviour of this function should be reviewed before 1.2.0 final
*/
function db_prepare_int( $p_int ) {
return (int) $p_int;
}
/**
* prepare a double for database insertion.
* @param double $p_double double
* @return double double
* @deprecated db_query_bound should be used in preference to this function. This function may be removed in 1.2.0 final
* @todo Use/Behaviour of this function should be reviewed before 1.2.0 final
*/
function db_prepare_double( $p_double ) {
return (double) $p_double;
}
/**
* prepare a boolean for database insertion.
* @param boolean $p_boolean boolean
* @return int integer representing boolean
* @deprecated db_query_bound should be used in preference to this function. This function may be removed in 1.2.0 final
* @todo Use/Behaviour of this function should be reviewed before 1.2.0 final
*/
function db_prepare_bool( $p_bool ) {
global $g_db;
if( db_is_pgsql() ) {
return $g_db->qstr( $p_bool );
} else {
return (int) (bool) $p_bool;
}
}
/**
* return current timestamp for DB
* @todo add param bool $p_gmt whether to use GMT or current timezone (default false)
* @return string Formatted Date for DB insertion e.g. 1970-01-01 00:00:00 ready for database insertion
*/
function db_now() {
global $g_db;
return time();
}
/**
* convert minutes to a time format [h]h:mm
* @param int $p_min integer representing number of minutes
* @return string representing formatted duration string in hh:mm format.
*/
function db_minutes_to_hhmm( $p_min = 0 ) {
return sprintf( '%02d:%02d', $p_min / 60, $p_min % 60 );
}
/**
* A helper function that generates a case-sensitive or case-insensitive like phrase based on the current db type.
* The field name and value are assumed to be safe to insert in a query (i.e. already cleaned).
* @param string $p_field_name The name of the field to filter on.
* @param bool $p_case_sensitive true: case sensitive, false: case insensitive
* @return string returns (field LIKE 'value') OR (field ILIKE 'value')
*/
function db_helper_like( $p_field_name, $p_case_sensitive = false ) {
$t_like_keyword = 'LIKE';
if( $p_case_sensitive === false ) {
if( db_is_pgsql() ) {
$t_like_keyword = 'ILIKE';
}
}
return "($p_field_name $t_like_keyword " . db_param() . ')';
}
/**
* A helper function to compare two dates against a certain number of days
* @param $p_date1_id_or_column
* @param $p_date2_id_or_column
* @param $p_limitstring
* @return string returns database query component to compare dates
* @todo Check if there is a way to do that using ADODB rather than implementing it here.
*/
function db_helper_compare_days( $p_date1_id_or_column, $p_date2_id_or_column, $p_limitstring ) {
$t_db_type = config_get_global( 'db_type' );
$p_date1 = $p_date1_id_or_column;
$p_date2 = $p_date2_id_or_column;
if( is_int( $p_date1_id_or_column ) ) {
$p_date1 = db_param();
}
if( is_int( $p_date2_id_or_column ) ) {
$p_date2 = db_param();
}
return '((' . $p_date1 . ' - ' . $p_date2 .')' . $p_limitstring . ')';
}
/**
* count queries
* @return int
*/
function db_count_queries() {
global $g_queries_array;
return count( $g_queries_array );
}
/**
* count unique queries
* @return int
*/
function db_count_unique_queries() {
global $g_queries_array;
$t_unique_queries = 0;
$t_shown_queries = array();
foreach( $g_queries_array as $t_val_array ) {
if( !in_array( $t_val_array[0], $t_shown_queries ) ) {
$t_unique_queries++;
array_push( $t_shown_queries, $t_val_array[0] );
}
}
return $t_unique_queries;
}
/**
* get total time for queries
* @return int
*/
function db_time_queries() {
global $g_queries_array;
$t_count = count( $g_queries_array );
$t_total = 0;
for( $i = 0;$i < $t_count;$i++ ) {
$t_total += $g_queries_array[$i][1];
}
return $t_total;
}
/**
* get database table name
*
* @param string $p_name can either be specified as 'XXX' (e.g. 'bug'), or
* using the legacy style 'mantis_XXX_table'; in the
* latter case, a deprecation warning will be issued
* @return string containing full database table name (with prefix and suffix)
*/
function db_get_table( $p_name ) {
if( strpos( $p_name, 'mantis_') === 0 ) {
$t_table = substr( $p_name, 7, strpos( $p_name, '_table' ) - 7 );
error_parameters(
"db_get_table( '$p_name' )",
"db_get_table( '$t_table' )"
);
trigger_error(ERROR_DEPRECATED_SUPERSEDED, WARNING );
} else {
$t_table = $p_name;
}
$t_prefix = config_get_global( 'db_table_prefix' );
$t_suffix = config_get_global( 'db_table_suffix' );
if ( $t_prefix ) {
$t_table = $t_prefix . '_' . $t_table;
}
# Oci8 not support long object names(30 chars max), reducing table names
if ( $t_suffix && $GLOBALS['g_db_type'] == 'oci8' ) {
$t_table .= $t_suffix;
}
db_check_identifier_size( $t_table );
return $t_table;
}
/**
* get list database tables
* @return array containing table names
*/
function db_get_table_list() {
global $g_db, $g_db_schema;
if( db_is_db2() ) {
// must pass schema
$t_tables = $g_db->MetaTables( 'TABLE', false, '', $g_db_schema );
} else {
$t_tables = $g_db->MetaTables( 'TABLE' );
}
return $t_tables;
}
/**
* Sorts bind variable numbers and puts them in sequential order
* e.g. input: "... WHERE F1=:12 and F2=:97 ",
* output: "... WHERE F1=:0 and F2=:1 ".
* Used in db_oracle_adapt_query_syntax().
* @param string $p_query Query string to sort
* @return string Query string with sorted bind variable numbers.
*/
function db_oracle_order_binds_sequentially( $p_query ) {
$t_new_query= '';