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Code Issues 95 Packages Projects Releases 10 Wiki Activity

elegant queries

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This commit is contained in:
John Rommel Estropia
2014-12-14 23:47:18 +09:00
parent 45a65d9262
commit 6b8bb3e434
14 changed files with 237 additions and 145 deletions
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84
HardcoreData/NSManagedObjectContext+HardcoreData.swift
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@@ -101,7 +101,7 @@ public extension NSManagedObjectContext {
self.reset()
if let completion = completion {
GCDBlock.async(.Main) {
GCDQueue.Main.async {
completion(result: SaveResult(hasChanges: false))
}
@@ -126,7 +126,7 @@ public extension NSManagedObjectContext {
if let completion = completion {
GCDBlock.async(.Main) {
GCDQueue.Main.async {
completion(result: SaveResult(hasChanges: true))
}
@@ -139,7 +139,7 @@ public extension NSManagedObjectContext {
"Failed to save NSManagedObjectContext.")
if let completion = completion {
GCDBlock.async(.Main) {
GCDQueue.Main.async {
completion(result: SaveResult(error))
}
@@ -147,7 +147,7 @@ public extension NSManagedObjectContext {
}
else if let completion = completion {
GCDBlock.async(.Main) {
GCDQueue.Main.async {
completion(result: SaveResult(hasChanges: false))
}
@@ -274,30 +274,40 @@ public extension NSManagedObjectContext {
// MARK: - DataContextProvider
extension NSManagedObjectContext: Queryable {
extension NSManagedObjectContext: ObjectQueryable {
public func findFirst<T: NSManagedObject>(entity: T.Type) -> T? {
return self.findFirst(Query(entity: entity))
return self.findFirst(entity, customizeFetch: nil)
}
public func findFirst<T: NSManagedObject>(query: Query<T>) -> T? {
public func findFirst<T: NSManagedObject>(entity: T.Type, customizeFetch: FetchRequestCustomization?) -> T? {
var query = query
query.fetchLimit = 1
let fetchRequest = query.createFetchRequestInContext(self)
return self.findFirst(ObjectQuery(entity: entity), customizeFetch: customizeFetch)
}
public func findFirst<T: NSManagedObject>(query: ObjectQuery<T>) -> T? {
return self.findFirst(query, customizeFetch: nil)
}
public func findFirst<T: NSManagedObject>(query: ObjectQuery<T>, customizeFetch: FetchRequestCustomization?) -> T? {
let fetchRequest = query.createFetchRequestForContext(self)
customizeFetch?(fetchRequest: fetchRequest)
fetchRequest.fetchLimit = 1
fetchRequest.resultType = .ManagedObjectResultType
var fetchResults: [T]?
var error: NSError?
self.performBlockAndWait {
var error: NSError?
fetchResults = self.executeFetchRequest(fetchRequest, error: &error) as? [T]
if fetchResults == nil {
HardcoreData.handleError(
error!,
"Failed executing fetch request.")
}
}
if fetchResults == nil {
HardcoreData.handleError(error!, "Failed executing fetch request.")
return nil
}
return fetchResults?.first
@@ -305,24 +315,34 @@ extension NSManagedObjectContext: Queryable {
public func findAll<T: NSManagedObject>(entity: T.Type) -> [T]? {
return self.findAll(Query(entity: entity))
return self.findAll(entity, customizeFetch: nil)
}
public func findAll<T: NSManagedObject>(query: Query<T>) -> [T]? {
public func findAll<T: NSManagedObject>(entity: T.Type, customizeFetch: FetchRequestCustomization?) -> [T]? {
let fetchRequest = query.createFetchRequestInContext(self)
return self.findAll(ObjectQuery(entity: entity), customizeFetch: customizeFetch)
}
public func findAll<T: NSManagedObject>(query: ObjectQuery<T>) -> [T]? {
return self.findAll(query, customizeFetch: nil)
}
public func findAll<T: NSManagedObject>(query: ObjectQuery<T>, customizeFetch: FetchRequestCustomization?) -> [T]? {
let fetchRequest = query.createFetchRequestForContext(self)
fetchRequest.fetchLimit = 0
var fetchResults: [T]?
var error: NSError?
self.performBlockAndWait {
var error: NSError?
fetchResults = self.executeFetchRequest(fetchRequest, error: &error) as? [T]
if fetchResults == nil {
HardcoreData.handleError(
error!,
"Failed executing fetch request.")
}
}
if fetchResults == nil {
HardcoreData.handleError(error!, "Failed executing fetch request.")
return nil
}
return fetchResults
@@ -330,12 +350,12 @@ extension NSManagedObjectContext: Queryable {
public func count<T: NSManagedObject>(entity: T.Type) -> Int {
return self.count(Query(entity: entity))
return self.count(ObjectQuery(entity: entity))
}
public func count<T: NSManagedObject>(query: Query<T>) -> Int {
public func count<T: NSManagedObject>(query: ObjectQuery<T>) -> Int {
let fetchRequest = query.createFetchRequestInContext(self)
let fetchRequest = query.createFetchRequestForContext(self)
var count = 0
var error: NSError?
@@ -345,9 +365,7 @@ extension NSManagedObjectContext: Queryable {
}
if count == NSNotFound {
HardcoreData.handleError(
error!,
"Failed executing fetch request.")
HardcoreData.handleError( error!, "Failed executing fetch request.")
return 0
}