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EGODatabaseRequest.m
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EGODatabaseRequest.m
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//
// EGODatabaseRequest.m
// EGODatabase
//
// Copyright (c) 2009-2014 Enormego, Shaun Harrison
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
#import "EGODatabaseRequest.h"
#import "EGODatabase.h"
@implementation EGODatabaseRequest {
NSArray* _parameters;
NSString* _query;
}
- (id)initWithQuery:(NSString*)query {
return [self initWithQuery:query parameters:nil];
}
- (id)initWithQuery:(NSString*)query parameters:(NSArray*)parameters {
if((self = [super init])) {
_query = [query copy];
_parameters = parameters;
self.requestKind = EGODatabaseSelectRequest;
}
return self;
}
- (void)main {
if(self.requestKind == EGODatabaseUpdateRequest) {
[self executeUpdate];
} else {
[self executeQuery];
}
}
- (void)executeUpdate {
BOOL result = [self.database executeUpdate:_query parameters:_parameters];
if(result) {
[self didSucceedWithResult:nil];
} else {
NSString* errorMessage = [self.database lastErrorMessage];
NSDictionary* userInfo = nil;
if(errorMessage != nil) {
userInfo = @{ @"message" : errorMessage };
}
[self didFailWithError:[NSError errorWithDomain:@"com.egodatabase.update" code:[self.database lastErrorCode] userInfo:userInfo]];
}
}
- (void)executeQuery {
EGODatabaseResult* result = [self.database executeQuery:_query parameters:_parameters];
if(result.errorCode == 0) {
[self didSucceedWithResult:result];
} else {
NSDictionary* userInfo = nil;
if(result.errorMessage != nil) {
userInfo = @{ @"message" : result.errorMessage };
}
[self didFailWithError:[NSError errorWithDomain:@"com.egodatabase.select" code:result.errorCode userInfo:userInfo]];
}
}
- (void)didSucceedWithResult:(EGODatabaseResult*)result {
if(self.completion != nil) {
dispatch_async(dispatch_get_main_queue(), ^{
self.completion(self, result, nil);
});
}
}
- (void)didFailWithError:(NSError*)error {
if(self.completion != nil) {
dispatch_async(dispatch_get_main_queue(), ^{
self.completion(self, nil, error);
});
}
}
@end