From 4cb9f0b6ab99875d487ae9c2c438595978222a3e Mon Sep 17 00:00:00 2001
From: stuconnolly <stuart02@gmail.com>
Date: Wed, 27 May 2009 13:30:34 +0000
Subject: Redesigned table information pane.

---
 Source/SPDatabaseData.m | 176 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 176 insertions(+)
 create mode 100644 Source/SPDatabaseData.m

(limited to 'Source/SPDatabaseData.m')

diff --git a/Source/SPDatabaseData.m b/Source/SPDatabaseData.m
new file mode 100644
index 00000000..24a0f204
--- /dev/null
+++ b/Source/SPDatabaseData.m
@@ -0,0 +1,176 @@
+//
+//  $Id$
+//
+//  SPDatabaseData.m
+//  sequel-pro
+//
+//  Created by Stuart Connolly (stuconnolly.com) on May 20, 2009
+//  Copyright (c) 2009 Stuart Connolly. All rights reserved.
+//
+//  This program 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.
+//
+//  This program 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 this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  More info at <http://code.google.com/p/sequel-pro/>
+
+#import "SPDatabaseData.h"
+#import "CMMCPConnection.h"
+#import "CMMCPResult.h"
+#import "SPStringAdditions.h"
+
+@interface SPDatabaseData (PrivateAPI)
+
+- (NSArray *)_getDatabaseDataForQuery:(NSString *)query;
+
+@end
+
+@implementation SPDatabaseData
+
+@synthesize connection;
+
+/**
+ * Initialize cache arrays.
+ */
+- (id)init
+{
+	if ((self = [super init])) {
+		characterSetEncoding = nil;
+		
+		collations             = [[NSMutableArray alloc] init];
+		characterSetCollations = [[NSMutableArray alloc] init];
+		storageEngines         = [[NSMutableArray alloc] init];
+		characterSetEncodings  = [[NSMutableArray alloc] init];
+	}
+	
+	return self;
+}
+
+/**
+ * Reset all the cached values.
+ */
+- (void)resetAllData
+{
+	if (characterSetEncoding != nil) {
+		[characterSetEncoding release]; 
+	}
+	
+	[collations removeAllObjects];
+	[characterSetCollations removeAllObjects];
+	[storageEngines removeAllObjects];
+	[characterSetEncodings removeAllObjects];
+}
+
+/**
+ * Returns all of the database's currently available collations by querying information_schema.collations.
+ */
+- (NSArray *)getDatabaseCollations
+{
+	if ([collations count] == 0) {
+		[collations addObjectsFromArray:[self _getDatabaseDataForQuery:@"SELECT * FROM information_schema.collations ORDER BY collation_name ASC"]];
+	}
+		
+	return collations;
+}
+
+/**
+ * Returns all of the database's currently available collations allowed for the supplied encoding by 
+ * querying information_schema.collations.
+ */ 
+- (NSArray *)getDatabaseCollationsForEncoding:(NSString *)encoding
+{
+	if ((characterSetEncoding == nil) || (![characterSetEncoding isEqualToString:encoding]) || ([characterSetCollations count] == 0)) {
+		
+		[characterSetEncoding release];
+		[characterSetCollations removeAllObjects];
+		
+		characterSetEncoding = [[NSString alloc] initWithString:encoding];
+		
+		[characterSetCollations addObjectsFromArray:[self _getDatabaseDataForQuery:[NSString stringWithFormat:@"SELECT * FROM information_schema.collations WHERE character_set_name = '%@' ORDER BY collation_name ASC", characterSetEncoding]]];
+	}
+	
+	return characterSetCollations;
+}
+
+/**
+ * Returns all of the database's currently availale storage engines by querying information_schema.engines.
+ */
+- (NSArray *)getDatabaseStorageEngines
+{
+	if ([storageEngines count] == 0) {
+		[storageEngines addObjectsFromArray:[self _getDatabaseDataForQuery:@"SELECT * FROM information_schema.engines"]];
+	}
+	
+	return storageEngines;
+}
+
+/**
+ * Returns all of the database's currently available character set encodings by querying 
+ * information_schema.character_sets.
+ */ 
+- (NSArray *)getDatabaseCharacterSetEncodings
+{
+	if ([characterSetEncodings count] == 0) {
+		[characterSetEncodings addObjectsFromArray:[self _getDatabaseDataForQuery:@"SELECT * FROM information_schema.character_sets ORDER BY character_set_name ASC"]];
+	}
+	
+	return characterSetEncodings;
+}
+
+/**
+ * Deallocate ivars.
+ */
+- (void)dealloc
+{
+	if (characterSetEncoding != nil) {
+		[characterSetEncoding release], characterSetEncoding = nil;
+	}
+	
+	[collations release], collations = nil;
+	[characterSetCollations release], characterSetCollations = nil;
+	[storageEngines release], storageEngines = nil;
+	[characterSetEncodings release], characterSetEncodings = nil;
+	
+	[super dealloc];
+}
+
+@end
+
+@implementation SPDatabaseData (PrivateAPI)
+
+/**
+ * Executes the supplied query against the current connection and returns the result as an array of 
+ * NSDictionarys, one for each row.
+ */
+- (NSArray *)_getDatabaseDataForQuery:(NSString *)query
+{
+	NSMutableArray *array = [NSMutableArray array];
+	
+	CMMCPResult *result = [connection queryString:query];
+	
+	// Log any errors
+	if (![[connection getLastErrorMessage] isEqualToString:@""]) {
+		NSLog(@"");
+	}
+	else {
+		[result dataSeek:0];
+		
+		for (int i = 0; i < [result numOfRows]; i++)
+		{		
+			[array addObject:[result fetchRowAsDictionary]];		
+		}
+	}
+	
+	return array;
+}
+
+@end
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