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WIP: make fetching methods throwable

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John Estropia
2019-01-11 19:52:12 +09:00
parent 42d1f41939
commit 5777831565
16 changed files with 326 additions and 226 deletions
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21
Sources/UnsafeDataTransaction+Observing.swift
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@@ -142,8 +142,23 @@ public extension UnsafeDataTransaction {
createAsynchronously: createAsynchronously
)
}
// TODO: docs
/**
Asynchronously creates a `ListMonitor` for a list of `DynamicObject`s that satisfy the specified `FetchChainableBuilderType` built from a chain of clauses. Since `NSFetchedResultsController` greedily locks the persistent store on initial fetch, you may prefer this method instead of the synchronous counterpart to avoid deadlocks while background updates/saves are being executed.
```
dataStack.monitorList(
createAsynchronously: { (monitor) in
self.monitor = monitor
},
From<MyPersonEntity>()
.where(\.age > 18)
.orderBy(.ascending(\.age))
)
```
- parameter createAsynchronously: the closure that receives the created `ListMonitor` instance
- parameter clauseChain: a `FetchChainableBuilderType` built from a chain of clauses
*/
public func monitorList<B: FetchChainableBuilderType>(createAsynchronously: @escaping (ListMonitor<B.ObjectType>) -> Void, _ clauseChain: B) {
self.monitorList(
@@ -267,8 +282,8 @@ public extension UnsafeDataTransaction {
.orderBy(.ascending(\.age))
)
```
- parameter createAsynchronously: the closure that receives the created `ListMonitor` instance
- parameter clauseChain: a `SectionMonitorBuilderType` built from a chain of clauses
- returns: a `ListMonitor` for a list of `DynamicObject`s that satisfy the specified `SectionMonitorBuilderType`
*/
public func monitorSectionedList<B: SectionMonitorBuilderType>(createAsynchronously: @escaping (ListMonitor<B.ObjectType>) -> Void, _ clauseChain: B) {