author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 15:44:10 +0300 | |
branch | RCL_3 |
changeset 39 | c0c2f28ace9c |
parent 0 | b16258d2340f |
permissions | -rw-r--r-- |
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// |
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#include "sqldbaccessor.h" |
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#include "sqldbtransaction.h" |
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#include "urilist.h" |
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#include "tldlist.h" |
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#if defined (TESTDBNAME) |
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_LIT( KDatabaseName, "[A00026FF]URIList.dat" ); |
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#else |
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_LIT( KDatabaseName, "[20009D70]URIList.dat" ); |
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#endif |
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CSqlDbAccessor::CSqlDbAccessor () |
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{ |
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} |
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CSqlDbAccessor::~CSqlDbAccessor () |
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{ |
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iDatabase.Close (); |
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} |
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MDBAccessor* CSqlDbAccessor::NewL ( const RStringPool& aStringPool ) |
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{ |
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CSqlDbAccessor* self = new ( ELeave ) CSqlDbAccessor (); |
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CleanupStack::PushL ( self ); |
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self->ConstructL ( aStringPool ); |
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CleanupStack::Pop (); |
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return self; |
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} |
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void CSqlDbAccessor::ConstructL ( const RStringPool& aStringPool ) |
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{ |
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TInt result = iDatabase.Open ( KDatabaseName() ); |
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if ( result == KErrNotFound ) |
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{ |
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// Database is not existing. Create one. |
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CreateL ( aStringPool ); |
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} |
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else |
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{ |
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User::LeaveIfError ( result ); |
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} |
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} |
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/** |
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Creates a new database and its schemas. |
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*/ |
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void CSqlDbAccessor::CreateL ( const RStringPool& aStringPool ) |
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{ |
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// Create the URI List database. |
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// First create security policy |
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RSqlSecurityPolicy securityPolicy; |
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CleanupClosePushL ( securityPolicy ); |
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// Create security policies container object using a default security policy. |
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TSecurityPolicy defaultPolicy ( TSecurityPolicy::EAlwaysPass ); |
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User::LeaveIfError (securityPolicy.Create ( defaultPolicy )); |
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// Set up policy to apply to database schema and assign it |
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TSecurityPolicy schemaPolicy ( TSecurityPolicy::EAlwaysPass ); |
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User::LeaveIfError (securityPolicy.SetDbPolicy ( RSqlSecurityPolicy::ESchemaPolicy, schemaPolicy ) ); |
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// Set up policy to apply to write activity on the database and assign it |
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TSecurityPolicy writePolicy ( TSecurityPolicy::EAlwaysPass ); |
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User::LeaveIfError (securityPolicy.SetDbPolicy ( RSqlSecurityPolicy::EWritePolicy, writePolicy )); |
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// Set up policy to apply to write activity to the database table named "URIList" and assign it |
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TSecurityPolicy readPolicy ( TSecurityPolicy::EAlwaysPass ); |
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User::LeaveIfError (securityPolicy.SetDbPolicy(RSqlSecurityPolicy::EReadPolicy, readPolicy)); |
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User::LeaveIfError ( iDatabase.Create ( KDatabaseName, securityPolicy ) ); |
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CreateSchemaL ( aStringPool ); |
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CleanupStack::PopAndDestroy (); // securityPolicy |
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} |
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/** |
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Creates the schemas for the database. We create 2 tables ( URITbl & URIPropsTbl ), 1 view based |
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on those 2 tables for easy retrieval of data and the triggers to update the view. In SQLite the |
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view updation is done via the triggers. By default in SQLite views are read-only |
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*/ |
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void CSqlDbAccessor::CreateSchemaL ( const RStringPool& aStringPool ) |
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{ |
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RBuf8 stmtBuf; |
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CleanupClosePushL ( stmtBuf ); |
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stmtBuf.CreateL ( KMaxDbStmtLen ); |
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105 |
|
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const TDesC8& id ( aStringPool.String (URILIST::EId,URILIST::Table).DesC() ); |
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const TDesC8& scheme ( aStringPool.String (URILIST::EScheme,URILIST::Table).DesC() ); |
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const TDesC8& userInfo ( aStringPool.String (URILIST::EUserInfo,URILIST::Table).DesC() ); |
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const TDesC8& host ( aStringPool.String (URILIST::EHost,URILIST::Table).DesC() ); |
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const TDesC8& port ( aStringPool.String (URILIST::EPort,URILIST::Table).DesC() ); |
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const TDesC8& path ( aStringPool.String (URILIST::EPath,URILIST::Table).DesC() ); |
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const TDesC8& query ( aStringPool.String (URILIST::EQuery,URILIST::Table).DesC() ); |
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const TDesC8& fragments ( aStringPool.String (URILIST::EFragments,URILIST::Table).DesC() ); |
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114 |
|
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const TDesC8& RefId ( aStringPool.String (URILIST::EURIRefId,URILIST::Table).DesC() ); |
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const TDesC8& propId ( aStringPool.String (URILIST::EPropId,URILIST::Table).DesC() ); |
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const TDesC8& serviceType (aStringPool.String (URILIST::EServiceType,URILIST::Table).DesC()); |
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const TDesC8& listType (aStringPool.String (URILIST::EListType,URILIST::Table).DesC()); |
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const TDesC8& permission (aStringPool.String (URILIST::EPermission,URILIST::Table).DesC()); |
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const TDesC8& favouriteName (aStringPool.String (URILIST::EFavouriteName,URILIST::Table).DesC()); |
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121 |
|
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const TDesC8& KTldname ( aStringPool.String (TLDLIST::ETLDName,TLDLIST::Table).DesC() ); |
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const TDesC8& KTldListType ( aStringPool.String (TLDLIST::EListType,TLDLIST::Table).DesC() ); |
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const TDesC8& KCharacterSet ( aStringPool.String (TLDLIST::ECharacterSet,TLDLIST::Table).DesC() ); |
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125 |
|
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_LIT8 ( KURITblCreateStmt, "CREATE TABLE %S ( \ |
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%S INTEGR, \ |
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%S TEXT,\ |
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%S TEXT, \ |
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130 |
%S TEXT, \ |
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%S TEXT, \ |
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132 |
%S TEXT, \ |
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133 |
%S TEXT, \ |
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%S TEXT );" ); |
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135 |
|
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136 |
_LIT8 ( KURIPropTblCreateStmt, "CREATE TABLE %S ( \ |
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137 |
%S INTEGER, \ |
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%S INTEGER,\ |
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139 |
%S INTEGER, \ |
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140 |
%S INTEGER, \ |
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141 |
%S INTEGER, \ |
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%S TEXT );" ); |
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143 |
|
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144 |
_LIT8 ( KTldTblCreateStmt, "CREATE TABLE %S ( \ |
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145 |
%S TEXT,\ |
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146 |
%S INTEGER,\ |
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147 |
%S BLOB );" ); |
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148 |
|
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149 |
|
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150 |
_LIT8 ( KViewStmt, "CREATE VIEW %S AS SELECT \ |
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151 |
T1.%S %S, T1.%S %S, T1.%S %S, T1.%S %S, T1.%S %S, T1.%S %S, T1.%S %S, T1.%S %S, \ |
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T2.%S %S, T2.%S %S, T2.%S %S, T2.%S %S, T2.%S %S \ |
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153 |
FROM \ |
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%S T1, %S T2 \ |
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155 |
WHERE \ |
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T1.%S = T2.%S;" ); |
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157 |
|
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158 |
_LIT8 ( KTriggerInsertStmt, "CREATE TRIGGER %S INSTEAD OF INSERT ON %S \ |
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159 |
BEGIN \ |
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INSERT INTO %S \ |
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VALUES ( new.%S, new.%S, new.%S, new.%S, new.%S, new.%S, new.%S, new.%S, \ |
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new.%S, new.%S, new.%S, new.%S, new.%S); \ |
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163 |
END;" ); |
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164 |
|
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165 |
|
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166 |
_LIT8 ( KTriggerUpdateStmt, "CREATE TRIGGER %S INSTEAD OF UPDATE ON %S \ |
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167 |
BEGIN \ |
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UPDATE %S SET %S=new.%S, %S=new.%S \ |
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WHERE %S=old.%S; \ |
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END;" ); |
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171 |
_LIT8 ( KTriggerDeleteStmt, "CREATE TRIGGER %S INSTEAD OF DELETE ON %S \ |
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172 |
BEGIN \ |
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173 |
DELETE FROM %S WHERE %S=old.%S; \ |
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174 |
END;" ); |
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175 |
|
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176 |
_LIT8 ( KTldTableIndexStmt, "CREATE INDEX %S ON %S ( %S, %S )" ); |
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177 |
|
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178 |
stmtBuf.Format ( KURITblCreateStmt(), &(KUriTblName()), &id, &scheme, &userInfo, &host, &port, &path, &query, &fragments ); |
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179 |
ExecuteL ( stmtBuf ); |
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180 |
stmtBuf.Format ( KURIPropTblCreateStmt(), &(KUriPropsTblName()), &RefId, &propId, &serviceType, &listType, &permission, &favouriteName ); |
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181 |
ExecuteL ( stmtBuf ); |
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182 |
stmtBuf.Format ( KViewStmt(), &(KViewName()), &id, &id, &scheme, &scheme, &userInfo, &userInfo, &host, &host, &port, &port, |
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183 |
&path, &path, &query, &query, &fragments, &fragments, &propId, &propId, &serviceType, &serviceType, |
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184 |
&listType, &listType, &permission, &permission, &favouriteName, &favouriteName, &(KUriTblName()), &(KUriPropsTblName()), &id, &propId ); |
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185 |
ExecuteL ( stmtBuf ); |
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186 |
stmtBuf.Format ( KTriggerInsertStmt(), &(KTriggerInsertView()), &(KViewName()), &(KViewName()), &id, &scheme, &userInfo, &host, &port, &path, &query, &fragments, &propId, &serviceType, &listType, &permission, &favouriteName ); |
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187 |
ExecuteL ( stmtBuf ); |
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188 |
stmtBuf.Format ( KTriggerUpdateStmt(), &(KTriggerUpdateView()), &(KViewName()), &(KViewName()), &listType, &listType, &favouriteName, &favouriteName, &propId, &propId ); |
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189 |
ExecuteL ( stmtBuf ); |
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190 |
stmtBuf.Format ( KTriggerDeleteStmt(), &(KTriggerDeleteView()), &(KViewName()), &(KViewName()), &propId, &propId ); |
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191 |
ExecuteL ( stmtBuf ); |
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192 |
|
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193 |
stmtBuf.Format ( KTldTblCreateStmt(), &(KTldTblName()), &KTldname, &KTldListType, &KCharacterSet ); |
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194 |
ExecuteL ( stmtBuf ); |
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195 |
|
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196 |
stmtBuf.Format ( KTldTableIndexStmt(), &(KTldTblIndex()), &(KTldTblName()), &KTldname, &KTldListType ); |
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197 |
ExecuteL ( stmtBuf ); |
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CleanupStack::PopAndDestroy ( ); // stmtBuf |
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} |
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/** |
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Executes the SQL statement and leave incase of error |
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*/ |
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void CSqlDbAccessor::ExecuteL ( const TDesC8& aStmt ) |
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{ |
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User::LeaveIfError ( iDatabase.Exec ( aStmt ) ); |
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} |
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/** |
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Prepares a new SQL transaction object by providing a SQL statement. |
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*/ |
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MDBTransaction* CSqlDbAccessor::PrepareTransactionL ( const TDesC8& aQueryStmt ) |
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{ |
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return CSqlDbTransaction::NewL ( iDatabase, aQueryStmt ); |
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} |
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/** |
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Scalar queries are queries which returns a single value upon completion. This function |
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executes a scalar query and returns the result |
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*/ |
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TInt CSqlDbAccessor::ExecuteScalarQueryL ( const TDesC8& aQueryStmt ) |
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{ |
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TSqlScalarFullSelectQuery selectQuery ( iDatabase ); |
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return selectQuery.SelectIntL ( aQueryStmt ); |
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} |
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void CSqlDbAccessor::BeginTransactionL () |
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{ |
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_LIT8 ( KBeginTrans, "BEGIN TRANSACTION;" ); |
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ExecuteL ( KBeginTrans() ); |
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} |
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void CSqlDbAccessor::CommitTransactionL () |
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{ |
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_LIT8 ( KCommitTrans, "COMMIT TRANSACTION;" ); |
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ExecuteL ( KCommitTrans() ); |
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} |
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void CSqlDbAccessor::RollbackTransaction () |
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{ |
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_LIT8 ( KRollbackTrans, "ROLLBACK TRANSACTION;" ); |
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TInt err = iDatabase.Exec ( KRollbackTrans() ); |
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} |
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void CSqlDbAccessor::Release () |
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{ |
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delete this; |
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} |