Add comparison operators for CodingKey

Author: colemancda

Sources/CoreModel/Predicate/Comparison.swift

@@ -266,3 +266,79 @@ public extension String {
  return .comparison(comparison)
  }
 }
+
+public func < <K: CodingKey, T: AttributeEncodable>(lhs: K, rhs: T) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: lhs.stringValue)),
+ right: .attribute(rhs.attributeValue),
+ type: .lessThan)
+ 
+ return .comparison(comparison)
+}
+
+public func <= <K: CodingKey, T: AttributeEncodable>(lhs: K, rhs: T) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: lhs.stringValue)),
+ right: .attribute(rhs.attributeValue),
+ type: .lessThanOrEqualTo)
+ 
+ return .comparison(comparison)
+}
+
+public func > <K: CodingKey, T: AttributeEncodable>(lhs: K, rhs: T) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: lhs.stringValue)),
+ right: .attribute(rhs.attributeValue),
+ type: .greaterThan)
+ 
+ return .comparison(comparison)
+}
+
+public func >= <K: CodingKey, T: AttributeEncodable>(lhs: K, rhs: T) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: lhs.stringValue)),
+ right: .attribute(rhs.attributeValue),
+ type: .greaterThanOrEqualTo)
+ 
+ return .comparison(comparison)
+}
+
+public func == <K: CodingKey, T: AttributeEncodable>(lhs: K, rhs: T) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: lhs.stringValue)),
+ right: .attribute(rhs.attributeValue),
+ type: .equalTo)
+ 
+ return .comparison(comparison)
+}
+
+public func != <K: CodingKey, T: AttributeEncodable>(lhs: K, rhs: T) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: lhs.stringValue)),
+ right: .attribute(rhs.attributeValue),
+ type: .notEqualTo)
+ 
+ return .comparison(comparison)
+}
+
+// Extensions for KeyPath comparisons
+public extension CodingKey {
+ 
+ func compare(_ type: FetchRequest.Predicate.Comparison.Operator, _ rhs: FetchRequest.Predicate.Expression) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: stringValue)), right: rhs, type: type)
+ return .comparison(comparison)
+ }
+ 
+ func compare(_ type: FetchRequest.Predicate.Comparison.Operator, _ options: Set<FetchRequest.Predicate.Comparison.Option>, _ rhs: FetchRequest.Predicate.Expression) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: stringValue)), right: rhs, type: type, options: options)
+ return .comparison(comparison)
+ }
+ 
+ func compare(_ modifier: FetchRequest.Predicate.Comparison.Modifier, _ type: FetchRequest.Predicate.Comparison.Operator, _ options: Set<FetchRequest.Predicate.Comparison.Option>, _ rhs: FetchRequest.Predicate.Expression) -> FetchRequest.Predicate {
+ 
+ let comparison = FetchRequest.Predicate.Comparison(left: .keyPath(.init(rawValue: stringValue)), right: rhs, type: type, modifier: modifier, options: options)
+ return .comparison(comparison)
+ }
+}