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comments cleanup

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This commit is contained in:
John Rommel Estropia
2016-02-17 01:38:26 +09:00
parent def105e73a
commit 66892f22a3
47 changed files with 1749 additions and 1750 deletions
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CoreStore/Fetching and Querying/Concrete Clauses/From.swift
+48 -9
View File
@@ -30,38 +30,77 @@ import CoreData
// MARK: - From
/**
A `Form` clause binds the `NSManagedObject` entity type to the generics type system.
*/
A `From` clause specifies the source entity and source persistent store for fetch and query methods. A common usage is to just indicate the entity:
```
let person = transaction.fetchOne(From(MyPersonEntity))
```
For cases where multiple `NSPersistentStore`s contain the same entity, the source configuration's name needs to be specified as well:
```
let person = transaction.fetchOne(From<MyPersonEntity>("Configuration1"))
```
*/
public struct From<T: NSManagedObject> {
// MARK: Public
/**
Initializes a `From` clause with the specified entity type and configuration.
Sample Usage:
let person = transaction.fetchOne(From<MyPersonEntity>())
*/
Initializes a `From` clause.
Sample Usage:
```
let people = transaction.fetchAll(From<MyPersonEntity>())
```
*/
public init(){
self.init(entityClass: T.self)
}
/**
Initializes a `From` clause with the specified entity type.
Sample Usage:
```
let people = transaction.fetchAll(From<MyPersonEntity>())
```
- parameter entity: the `NSManagedObject` type to be created
*/
public init(_ entity: T.Type) {
self.init(entityClass: entity)
}
/**
Initializes a `From` clause with the specified entity class.
Sample Usage:
```
let people = transaction.fetchAll(From<MyPersonEntity>())
```
- parameter entityClass: the `NSManagedObject` class type to be created
*/
public init(_ entityClass: AnyClass) {
self.init(entityClass: entityClass)
}
/**
Initializes a `From` clause with the specified configurations.
Sample Usage:
```
let people = transaction.fetchAll(From<MyPersonEntity>(nil, "Configuration1"))
```
- parameter configuration: the `NSPersistentStore` configuration name to associate objects from. This parameter is required if multiple configurations contain the created `NSManagedObject`'s entity type. Set to `nil` to use the default configuration.
- parameter otherConfigurations: an optional list of other configuration names to associate objects from (see `configuration` parameter)
*/
public init(_ configuration: String?, otherConfigurations: String?...) {
self.init(entityClass: T.self, configurations: [configuration] + otherConfigurations)
}
/**
Initializes a `From` clause with the specified configurations.
Sample Usage:
```
let people = transaction.fetchAll(From<MyPersonEntity>(["Configuration1", "Configuration2"]))
```
- parameter configurations: a list of `NSPersistentStore` configuration names to associate objects from. This parameter is required if multiple configurations contain the created `NSManagedObject`'s entity type. Set to `nil` to use the default configuration.
*/
public init(_ configurations: [String?]) {
self.init(entityClass: T.self, configurations: configurations)
CoreStore/Fetching and Querying/Concrete Clauses/GroupBy.swift
+14 -16
View File
@@ -30,36 +30,34 @@ import CoreData
// MARK: - GroupBy
/**
The `GroupBy` clause specifies that the result of a query be grouped accoording to the specified key path.
*/
The `GroupBy` clause specifies that the result of a query be grouped accoording to the specified key path.
*/
public struct GroupBy: QueryClause {
// MARK: Public
/**
Initializes a `GroupBy` clause with a list of key path strings
- parameter keyPaths: a list of key path strings to group results with
*/
Initializes a `GroupBy` clause with a list of key path strings
- parameter keyPaths: a list of key path strings to group results with
*/
public init(_ keyPaths: [KeyPath]) {
self.keyPaths = keyPaths
}
/**
Initializes a `GroupBy` clause with an empty list of key path strings
*/
Initializes a `GroupBy` clause with an empty list of key path strings
*/
public init() {
self.init([])
}
/**
Initializes a `GroupBy` clause with a list of key path strings
- parameter keyPath: a key path string to group results with
- parameter keyPaths: a series of key path strings to group results with
*/
Initializes a `GroupBy` clause with a list of key path strings
- parameter keyPath: a key path string to group results with
- parameter keyPaths: a series of key path strings to group results with
*/
public init(_ keyPath: KeyPath, _ keyPaths: KeyPath...) {
self.init([keyPath] + keyPaths)
@@ -72,7 +70,7 @@ public struct GroupBy: QueryClause {
public func applyToFetchRequest(fetchRequest: NSFetchRequest) {
if fetchRequest.propertiesToGroupBy != nil {
if let keyPaths = fetchRequest.propertiesToGroupBy as? [String] where keyPaths != self.keyPaths {
CoreStore.log(
.Warning,
CoreStore/Fetching and Querying/Concrete Clauses/OrderBy.swift
+28 -30
View File
@@ -46,18 +46,18 @@ public typealias KeyPath = String
// MARK: - SortKey
/**
The `SortKey` is passed to the `OrderBy` clause to indicate the sort keys and their sort direction.
*/
The `SortKey` is passed to the `OrderBy` clause to indicate the sort keys and their sort direction.
*/
public enum SortKey {
/**
Indicates that the `KeyPath` should be sorted in ascending order
*/
Indicates that the `KeyPath` should be sorted in ascending order
*/
case Ascending(KeyPath)
/**
Indicates that the `KeyPath` should be sorted in descending order
*/
Indicates that the `KeyPath` should be sorted in descending order
*/
case Descending(KeyPath)
}
@@ -65,45 +65,43 @@ public enum SortKey {
// MARK: - OrderBy
/**
The `OrderBy` clause specifies the sort order for results for a fetch or a query.
*/
The `OrderBy` clause specifies the sort order for results for a fetch or a query.
*/
public struct OrderBy: FetchClause, QueryClause, DeleteClause {
// MARK: Public
/**
Initializes a `OrderBy` clause with a list of sort descriptors
- parameter sortDescriptors: a series of `NSSortDescriptor`s
*/
Initializes a `OrderBy` clause with a list of sort descriptors
- parameter sortDescriptors: a series of `NSSortDescriptor`s
*/
public init(_ sortDescriptors: [NSSortDescriptor]) {
self.sortDescriptors = sortDescriptors
}
/**
Initializes a `OrderBy` clause with an empty list of sort descriptors
*/
Initializes a `OrderBy` clause with an empty list of sort descriptors
*/
public init() {
self.init([NSSortDescriptor]())
}
/**
Initializes a `OrderBy` clause with a single sort descriptor
- parameter sortDescriptor: a `NSSortDescriptor`
*/
Initializes a `OrderBy` clause with a single sort descriptor
- parameter sortDescriptor: a `NSSortDescriptor`
*/
public init(_ sortDescriptor: NSSortDescriptor) {
self.init([sortDescriptor])
}
/**
Initializes a `OrderBy` clause with a series of `SortKey`s
- parameter sortKey: a series of `SortKey`s
*/
Initializes a `OrderBy` clause with a series of `SortKey`s
- parameter sortKey: a series of `SortKey`s
*/
public init(_ sortKey: [SortKey]) {
self.init(
@@ -122,11 +120,11 @@ public struct OrderBy: FetchClause, QueryClause, DeleteClause {
}
/**
Initializes a `OrderBy` clause with a series of `SortKey`s
- parameter sortKey: a single `SortKey`
- parameter sortKeys: a series of `SortKey`s
*/
Initializes a `OrderBy` clause with a series of `SortKey`s
- parameter sortKey: a single `SortKey`
- parameter sortKeys: a series of `SortKey`s
*/
public init(_ sortKey: SortKey, _ sortKeys: SortKey...) {
self.init([sortKey] + sortKeys)
@@ -139,7 +137,7 @@ public struct OrderBy: FetchClause, QueryClause, DeleteClause {
public func applyToFetchRequest(fetchRequest: NSFetchRequest) {
if fetchRequest.sortDescriptors != nil {
if let sortDescriptors = fetchRequest.sortDescriptors where sortDescriptors != self.sortDescriptors {
CoreStore.log(
.Warning,
CoreStore/Fetching and Querying/Concrete Clauses/Select.swift
+131 -135
View File
@@ -30,16 +30,16 @@ import CoreData
// MARK: - SelectResultType
/**
The `SelectResultType` protocol is implemented by return types supported by the `Select` clause.
*/
The `SelectResultType` protocol is implemented by return types supported by the `Select` clause.
*/
public protocol SelectResultType { }
// MARK: - SelectValueResultType
/**
The `SelectValueResultType` protocol is implemented by return types supported by the `queryValue(...)` methods.
*/
The `SelectValueResultType` protocol is implemented by return types supported by the `queryValue(...)` methods.
*/
public protocol SelectValueResultType: SelectResultType {
static func fromResultObject(result: AnyObject) -> Self?
@@ -49,8 +49,8 @@ public protocol SelectValueResultType: SelectResultType {
// MARK: - SelectAttributesResultType
/**
The `SelectValueResultType` protocol is implemented by return types supported by the `queryAttributes(...)` methods.
*/
The `SelectValueResultType` protocol is implemented by return types supported by the `queryAttributes(...)` methods.
*/
public protocol SelectAttributesResultType: SelectResultType {
static func fromResultObjects(result: [AnyObject]) -> [[NSString: AnyObject]]
@@ -60,49 +60,47 @@ public protocol SelectAttributesResultType: SelectResultType {
// MARK: - SelectTerm
/**
The `SelectTerm` is passed to the `Select` clause to indicate the attributes/aggregate keys to be queried.
*/
The `SelectTerm` is passed to the `Select` clause to indicate the attributes/aggregate keys to be queried.
*/
public enum SelectTerm: StringLiteralConvertible {
// MARK: Public
/**
Provides a `SelectTerm` to a `Select` clause for querying an entity attribute. A shorter way to do the same is to assign from the string keypath directly:
let fullName = CoreStore.queryValue(
From(MyPersonEntity),
Select<String>(.Attribute("fullName")),
Where("employeeID", isEqualTo: 1111)
)
is equivalent to:
let fullName = CoreStore.queryValue(
From(MyPersonEntity),
Select<String>("fullName"),
Where("employeeID", isEqualTo: 1111)
)
- parameter keyPath: the attribute name
- returns: a `SelectTerm` to a `Select` clause for querying an entity attribute
*/
Provides a `SelectTerm` to a `Select` clause for querying an entity attribute. A shorter way to do the same is to assign from the string keypath directly:
```
let fullName = CoreStore.queryValue(
From(MyPersonEntity),
Select<String>(.Attribute("fullName")),
Where("employeeID", isEqualTo: 1111)
)
```
is equivalent to:
```
let fullName = CoreStore.queryValue(
From(MyPersonEntity),
Select<String>("fullName"),
Where("employeeID", isEqualTo: 1111)
)
```
- parameter keyPath: the attribute name
- returns: a `SelectTerm` to a `Select` clause for querying an entity attribute
*/
public static func Attribute(keyPath: KeyPath) -> SelectTerm {
return ._Attribute(keyPath)
}
/**
Provides a `SelectTerm` to a `Select` clause for querying the average value of an attribute.
let averageAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Average("age"))
)
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "average(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the average value of an attribute
*/
Provides a `SelectTerm` to a `Select` clause for querying the average value of an attribute.
```
let averageAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Average("age"))
)
```
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "average(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the average value of an attribute
*/
public static func Average(keyPath: KeyPath, As alias: KeyPath? = nil) -> SelectTerm {
return ._Aggregate(
@@ -114,17 +112,17 @@ public enum SelectTerm: StringLiteralConvertible {
}
/**
Provides a `SelectTerm` to a `Select` clause for a count query.
let numberOfEmployees = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Count("employeeID"))
)
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "count(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for a count query
*/
Provides a `SelectTerm` to a `Select` clause for a count query.
```
let numberOfEmployees = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Count("employeeID"))
)
```
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "count(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for a count query
*/
public static func Count(keyPath: KeyPath, As alias: KeyPath? = nil) -> SelectTerm {
return ._Aggregate(
@@ -136,17 +134,17 @@ public enum SelectTerm: StringLiteralConvertible {
}
/**
Provides a `SelectTerm` to a `Select` clause for querying the maximum value for an attribute.
let maximumAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Maximum("age"))
)
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "max(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the maximum value for an attribute
*/
Provides a `SelectTerm` to a `Select` clause for querying the maximum value for an attribute.
```
let maximumAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Maximum("age"))
)
```
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "max(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the maximum value for an attribute
*/
public static func Maximum(keyPath: KeyPath, As alias: KeyPath? = nil) -> SelectTerm {
return ._Aggregate(
@@ -158,17 +156,17 @@ public enum SelectTerm: StringLiteralConvertible {
}
/**
Provides a `SelectTerm` to a `Select` clause for querying the minimum value for an attribute.
let minimumAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Minimum("age"))
)
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "min(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the minimum value for an attribute
*/
Provides a `SelectTerm` to a `Select` clause for querying the minimum value for an attribute.
```
let minimumAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Minimum("age"))
)
```
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "min(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the minimum value for an attribute
*/
public static func Minimum(keyPath: KeyPath, As alias: KeyPath? = nil) -> SelectTerm {
return ._Aggregate(
@@ -180,17 +178,17 @@ public enum SelectTerm: StringLiteralConvertible {
}
/**
Provides a `SelectTerm` to a `Select` clause for querying the sum value for an attribute.
let totalAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Sum("age"))
)
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "sum(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the sum value for an attribute
*/
Provides a `SelectTerm` to a `Select` clause for querying the sum value for an attribute.
```
let totalAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Sum("age"))
)
```
- parameter keyPath: the attribute name
- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "sum(<attributeName>)" is used
- returns: a `SelectTerm` to a `Select` clause for querying the sum value for an attribute
*/
public static func Sum(keyPath: KeyPath, As alias: KeyPath? = nil) -> SelectTerm {
return ._Aggregate(
@@ -230,68 +228,66 @@ public enum SelectTerm: StringLiteralConvertible {
// MARK: - Select
/**
The `Select` clause indicates the attribute / aggregate value to be queried. The generic type is a `SelectResultType`, and will be used as the return type for the query.
You can bind the return type by specializing the initializer:
let maximumAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Maximum("age"))
)
or by casting the type of the return value:
let maximumAge: Int = CoreStore.queryValue(
From(MyPersonEntity),
Select(.Maximum("age"))
)
Valid return types depend on the query:
- for `queryValue(...)` methods:
- `Bool`
- `Int8`
- `Int16`
- `Int32`
- `Int64`
- `Double`
- `Float`
- `String`
- `NSNumber`
- `NSString`
- `NSDecimalNumber`
- `NSDate`
- `NSData`
- `NSManagedObjectID`
- `NSString`
- for `queryAttributes(...)` methods:
- `NSDictionary`
- parameter sortDescriptors: a series of `NSSortDescriptor`s
*/
The `Select` clause indicates the attribute / aggregate value to be queried. The generic type is a `SelectResultType`, and will be used as the return type for the query.
You can bind the return type by specializing the initializer:
```
let maximumAge = CoreStore.queryValue(
From(MyPersonEntity),
Select<Int>(.Maximum("age"))
)
```
or by casting the type of the return value:
```
let maximumAge: Int = CoreStore.queryValue(
From(MyPersonEntity),
Select(.Maximum("age"))
)
```
Valid return types depend on the query:
- for `queryValue(...)` methods:
- `Bool`
- `Int8`
- `Int16`
- `Int32`
- `Int64`
- `Double`
- `Float`
- `String`
- `NSNumber`
- `NSString`
- `NSDecimalNumber`
- `NSDate`
- `NSData`
- `NSManagedObjectID`
- `NSString`
- for `queryAttributes(...)` methods:
- `NSDictionary`
- parameter sortDescriptors: a series of `NSSortDescriptor`s
*/
public struct Select<T: SelectResultType> {
// MARK: Public
/**
The `SelectResultType` type for the query's return value
*/
The `SelectResultType` type for the query's return value
*/
public typealias ReturnType = T
/**
Initializes a `Select` clause with a list of `SelectTerm`s
- parameter selectTerm: a `SelectTerm`
- parameter selectTerms: a series of `SelectTerm`s
*/
Initializes a `Select` clause with a list of `SelectTerm`s
- parameter selectTerm: a `SelectTerm`
- parameter selectTerms: a series of `SelectTerm`s
*/
public init(_ selectTerm: SelectTerm, _ selectTerms: SelectTerm...) {
self.selectTerms = [selectTerm] + selectTerms
}
// MARK: Internal
internal func applyToFetchRequest(fetchRequest: NSFetchRequest) {
if fetchRequest.propertiesToFetch != nil {
CoreStore/Fetching and Querying/Concrete Clauses/Tweak.swift
+18 -18
View File
@@ -30,27 +30,25 @@ import CoreData
// MARK: - Tweak
/**
The `Tweak` clause allows fine-tuning the `NSFetchRequest` for a fetch or query.
Sample usage:
let employees = transaction.fetchAll(
From(MyPersonEntity),
Tweak { (fetchRequest) -> Void in
fetchRequest.includesPendingChanges = false
fetchRequest.fetchLimit = 5
}
)
*/
The `Tweak` clause allows fine-tuning the `NSFetchRequest` for a fetch or query.
Sample usage:
```
let employees = transaction.fetchAll(
From(MyPersonEntity),
Tweak { (fetchRequest) -> Void in
fetchRequest.includesPendingChanges = false
fetchRequest.fetchLimit = 5
}
)
```
*/
public struct Tweak: FetchClause, QueryClause, DeleteClause {
// MARK: Public
/**
Initializes a `Tweak` clause with a closure where the `NSFetchRequest` may be configured.
- parameter customization: a list of key path strings to group results with
*/
Initializes a `Tweak` clause with a closure where the `NSFetchRequest` may be configured.
- parameter customization: a list of key path strings to group results with
*/
public init(_ customization: (fetchRequest: NSFetchRequest) -> Void) {
self.customization = customization
@@ -65,5 +63,7 @@ public struct Tweak: FetchClause, QueryClause, DeleteClause {
}
// MARK: Private
private let customization: (fetchRequest: NSFetchRequest) -> Void
}
CoreStore/Fetching and Querying/Concrete Clauses/Where.swift
+38 -40
View File
@@ -46,68 +46,66 @@ public prefix func !(clause: Where) -> Where {
// MARK: - Where
/**
The `Where` clause specifies the conditions for a fetch or a query.
*/
The `Where` clause specifies the conditions for a fetch or a query.
*/
public struct Where: FetchClause, QueryClause, DeleteClause {
// MARK: Public
/**
Initializes a `Where` clause with an `NSPredicate`
- parameter predicate: the `NSPredicate` for the fetch or query
*/
Initializes a `Where` clause with an `NSPredicate`
- parameter predicate: the `NSPredicate` for the fetch or query
*/
public init(_ predicate: NSPredicate) {
self.predicate = predicate
}
/**
Initializes a `Where` clause with a predicate that always evaluates to `true`
*/
Initializes a `Where` clause with a predicate that always evaluates to `true`
*/
public init() {
self.init(true)
}
/**
Initializes a `Where` clause with a predicate that always evaluates to the specified boolean value
- parameter value: the boolean value for the predicate
*/
Initializes a `Where` clause with a predicate that always evaluates to the specified boolean value
- parameter value: the boolean value for the predicate
*/
public init(_ value: Bool) {
self.init(NSPredicate(value: value))
}
/**
Initializes a `Where` clause with a predicate using the specified string format and arguments
- parameter format: the format string for the predicate
- parameter args: the arguments for `format`
*/
Initializes a `Where` clause with a predicate using the specified string format and arguments
- parameter format: the format string for the predicate
- parameter args: the arguments for `format`
*/
public init(_ format: String, _ args: NSObject...) {
self.init(NSPredicate(format: format, argumentArray: args))
}
/**
Initializes a `Where` clause with a predicate using the specified string format and arguments
- parameter format: the format string for the predicate
- parameter argumentArray: the arguments for `format`
*/
Initializes a `Where` clause with a predicate using the specified string format and arguments
- parameter format: the format string for the predicate
- parameter argumentArray: the arguments for `format`
*/
public init(_ format: String, argumentArray: [NSObject]?) {
self.init(NSPredicate(format: format, argumentArray: argumentArray))
}
/**
Initializes a `Where` clause that compares equality
- parameter keyPath: the keyPath to compare with
- parameter value: the arguments for the `==` operator
*/
Initializes a `Where` clause that compares equality
- parameter keyPath: the keyPath to compare with
- parameter value: the arguments for the `==` operator
*/
public init(_ keyPath: KeyPath, isEqualTo value: NSObject?) {
self.init(value == nil
@@ -116,22 +114,22 @@ public struct Where: FetchClause, QueryClause, DeleteClause {
}
/**
Initializes a `Where` clause that compares membership
- parameter keyPath: the keyPath to compare with
- parameter list: the array to check membership of
*/
Initializes a `Where` clause that compares membership
- parameter keyPath: the keyPath to compare with
- parameter list: the array to check membership of
*/
public init(_ keyPath: KeyPath, isMemberOf list: NSArray) {
self.init(NSPredicate(format: "\(keyPath) IN %@", list))
}
/**
Initializes a `Where` clause that compares membership
- parameter keyPath: the keyPath to compare with
- parameter list: the sequence to check membership of
*/
Initializes a `Where` clause that compares membership
- parameter keyPath: the keyPath to compare with
- parameter list: the sequence to check membership of
*/
public init<S: SequenceType where S.Generator.Element: NSObject>(_ keyPath: KeyPath, isMemberOf list: S) {
self.init(NSPredicate(format: "\(keyPath) IN %@", Array(list) as NSArray))
@@ -144,7 +142,7 @@ public struct Where: FetchClause, QueryClause, DeleteClause {
public func applyToFetchRequest(fetchRequest: NSFetchRequest) {
if fetchRequest.predicate != nil {
if let predicate = fetchRequest.predicate where predicate != self.predicate {
CoreStore.log(
.Warning,