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+//
+// $Id$
+//
+// QKQueryUtilities.m
+// sequel-pro
+//
+// Created by Stuart Connolly (stuconnolly.com) on September 4, 2011
+// Copyright (c) 2011 Stuart Connolly. All rights reserved.
+//
+// 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.
+//
+// More info at <http://code.google.com/p/sequel-pro/>
+
+#import "QKQueryUtilities.h"
+
+static NSString *QKUnrecognisedQueryOperatorException = @"QKUnrecognisedQueryOperator";
+
+@implementation QKQueryUtilities
+
+/**
+ * Returns a string representation of the supplied operator type.
+ *
+ * @param operator The operator
+ *
+ * @return A string represenation of the operator.
+ */
++ (NSString *)operatorRepresentationForType:(QKQueryOperator)operator
+{
+ NSString *opString = nil;
+
+ switch (operator)
+ {
+ case QKEqualityOperator:
+ opString = @"=";
+ break;
+ case QKNotEqualOperator:
+ opString = @"!=";
+ break;
+ case QKLikeOperator:
+ opString = @"LIKE";
+ break;
+ case QKNotLikeOperator:
+ opString = @"NOT LIKE";
+ break;
+ case QKInOperator:
+ opString = @"IN";
+ break;
+ case QKNotInOperator:
+ opString = @"NOT IN";
+ break;
+ case QKIsNullOperator:
+ opString = @"IS NULL";
+ break;
+ case QKIsNotNullOperator:
+ opString = @"IS NOT NULL";
+ break;
+ case QKGreaterThanOperator:
+ opString = @">";
+ break;
+ case QKLessThanOperator:
+ opString = @"<";
+ break;
+ case QKGreaterThanOrEqualOperator:
+ opString = @">=";
+ break;
+ case QKLessThanOrEqualOperator:
+ opString = @"<=";
+ break;
+ default:
+ [NSException raise:QKUnrecognisedQueryOperatorException format:@"Unrecognised query operator type: %d", operator];
+ break;
+ }
+
+ return opString;
+}
+
+@end