Monotone-Revision: 12cffe17c857f344b88a2e8225bd29d25d96b049 Monotone-Author: wsourdeau@inverse.ca Monotone-Date: 2012-02-14T15:58:17
250 lines
6.9 KiB
Objective-C
250 lines
6.9 KiB
Objective-C
/* SOGoSQLUserProfile.m - this file is part of SOGo
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*
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* Copyright (C) 2009 Inverse inc.
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#import <NGExtensions/NSObject+Logs.h>
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#import <NGExtensions/NSNull+misc.h>
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#import <GDLContentStore/GCSChannelManager.h>
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#import <GDLContentStore/NSURL+GCS.h>
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#import <GDLAccess/EOAdaptor.h>
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#import <GDLAccess/EOAdaptorChannel.h>
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#import <GDLAccess/EOAdaptorContext.h>
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#import <GDLAccess/EOAttribute.h>
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#import "SOGoSystemDefaults.h"
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#import "SOGoSQLUserProfile.h"
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static NSURL *tableURL = nil;
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static NSString *uidColumnName = @"c_uid";
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static EOAttribute *textColumn = nil;
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@implementation SOGoSQLUserProfile
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+ (void) initialize
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{
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NSDictionary *description;
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NSString *profileURL;
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SOGoSystemDefaults *sd;
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if (!tableURL)
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{
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sd = [SOGoSystemDefaults sharedSystemDefaults];
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profileURL = [sd profileURL];
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if (profileURL)
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tableURL = [[NSURL alloc] initWithString: profileURL];
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}
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if (!textColumn)
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{
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#warning This is a hack for providing an EOAttribute definition \
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that is compatible with all the backends that we support
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/* TODO: ... We should make use of EOModel for the profile tables */
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description = [NSDictionary dictionaryWithObjectsAndKeys:
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@"c_textfield", @"columnName",
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@"VARCHAR", @"externalType",
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nil];
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textColumn = [EOAttribute attributeFromPropertyList: description];
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[textColumn retain];
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}
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}
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- (id) init
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{
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if ((self = [super init]))
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{
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fieldName = nil;
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}
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return self;
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}
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- (void) dealloc
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{
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[fieldName release];
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[super dealloc];
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}
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- (void) setProfileType: (SOGoUserProfileType) newProfileType
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{
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if (newProfileType == SOGoUserProfileTypeDefaults)
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ASSIGN (fieldName, @"c_defaults");
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else if (newProfileType == SOGoUserProfileTypeSettings)
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ASSIGN (fieldName, @"c_settings");
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else
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[self errorWithFormat: @"unknown profile value: %d", newProfileType];
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[super setProfileType: newProfileType];
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}
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- (NSString *) fetchJSONProfileFromDB
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{
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GCSChannelManager *cm;
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EOAdaptorChannel *channel;
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NSDictionary *row;
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NSException *ex;
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NSString *sql, *value;
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NSArray *attrs;
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value = nil;
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cm = [GCSChannelManager defaultChannelManager];
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channel = [cm acquireOpenChannelForURL: tableURL];
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if (channel)
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{
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/* generate SQL */
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defFlags.ready = YES;
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sql = [NSString stringWithFormat: @"SELECT %@ FROM %@ WHERE %@ = '%@'",
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fieldName, [tableURL gcsTableName],
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uidColumnName, [self uid]];
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/* run SQL */
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ex = [channel evaluateExpressionX: sql];
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if (ex)
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[self errorWithFormat:@"could not run SQL '%@': %@", sql, ex];
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else
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{
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/* fetch schema */
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attrs = [channel describeResults: NO /* don't beautify */];
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/* fetch values */
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row = [channel fetchAttributes: attrs withZone: NULL];
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[channel cancelFetch];
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/* the isNew flag depends on the presence of the row in the
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database rather than on the existence of the value. */
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defFlags.isNew = (row == nil);
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value = [row objectForKey: fieldName];
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if ([value isNotNull])
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/* The following enables the restitution of coded unicode (\U1234)
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characters with the Oracle adaptor. */
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value = [value stringByReplacingString: @"\\\\"
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withString: @"\\"];
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else
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value = nil; /* we discard any NSNull instance */
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}
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[cm releaseChannel: channel];
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}
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else
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{
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defFlags.ready = NO;
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[self errorWithFormat:@"failed to acquire channel for URL: %@",
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tableURL];
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}
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return value;
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}
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- (NSString *) generateSQLForInsert: (NSString *) jsonRepresentation
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{
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NSString *sql;
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if ([jsonRepresentation length])
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sql = [NSString stringWithFormat: (@"INSERT INTO %@"
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@" (%@, %@)"
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@" VALUES ('%@', %@)"),
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[tableURL gcsTableName], uidColumnName, fieldName,
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[self uid],
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jsonRepresentation];
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else
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sql = nil;
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return sql;
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}
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- (NSString *) generateSQLForUpdate: (NSString *) jsonRepresentation
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{
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NSString *sql;
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if ([jsonRepresentation length])
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sql = [NSString stringWithFormat: (@"UPDATE %@"
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@" SET %@ = %@"
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@" WHERE %@ = '%@'"),
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[tableURL gcsTableName],
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fieldName,
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jsonRepresentation,
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uidColumnName, [self uid]];
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else
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sql = nil;
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return sql;
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}
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- (BOOL) storeJSONProfileInDB: (NSString *) jsonRepresentation
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{
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GCSChannelManager *cm;
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EOAdaptorChannel *channel;
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EOAdaptorContext *context;
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NSException *ex;
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NSString *sql, *formattedValue;
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BOOL rc;
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rc = NO;
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cm = [GCSChannelManager defaultChannelManager];
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channel = [cm acquireOpenChannelForURL: tableURL];
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if (channel)
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{
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context = [channel adaptorContext];
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if ([context beginTransaction])
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{
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formattedValue = [[context adaptor] formatValue: jsonRepresentation
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forAttribute: textColumn];
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sql = ((defFlags.isNew)
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? [self generateSQLForInsert: formattedValue]
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: [self generateSQLForUpdate: formattedValue]);
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defFlags.ready = YES;
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ex = [channel evaluateExpressionX:sql];
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if (ex)
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{
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[self errorWithFormat: @"could not run SQL '%@': %@", sql, ex];
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[context rollbackTransaction];
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}
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else
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{
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rc = YES;
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defFlags.modified = NO;
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defFlags.isNew = NO;
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[context commitTransaction];
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}
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[cm releaseChannel: channel];
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}
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else
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{
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defFlags.ready = NO;
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[cm releaseChannel: channel immediately: YES];
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}
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}
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else
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{
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defFlags.ready = NO;
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[self errorWithFormat: @"failed to acquire channel for URL: %@",
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tableURL];
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}
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return rc;
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}
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@end
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