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Resolve source entity and managed object attributes by name

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Addresses #300 – see it for details. Also improves the use of whitespace consistency across the `CustomSchemaMappingProvider.swift` and uses method names for `cs_resolve…` over `cs_resolved…` for better alignment with [Swift API Design Guidelines](https://swift.org/documentation/api-design-guidelines).
This commit is contained in:
Ian Bytchek
2019-01-13 05:41:34 +00:00
parent 42d1f41939
commit ac8304f977
3 changed files with 79 additions and 71 deletions
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19
Sources/NSManagedObjectModel+Migration.swift
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@@ -32,13 +32,16 @@ import Foundation
internal extension NSManagedObjectModel {
@nonobjc
internal func cs_resolvedRenamingIdentities() -> [String: (entity: NSEntityDescription, versionHash: Data)] {
var mapping: [String: (entity: NSEntityDescription, versionHash: Data)] = [:]
for (entityName, entityDescription) in self.entitiesByName {
mapping[entityDescription.renamingIdentifier ?? entityName] = (entityDescription, entityDescription.versionHash)
}
return mapping
internal func cs_resolveNames() -> [String: (entity: NSEntityDescription, versionHash: Data)] {
return self.entitiesByName.reduce(into: [:], { (result, entity: (name: String, description: NSEntityDescription)) in
result[entity.name] = (entity.description, entity.description.versionHash)
})
}
@nonobjc
internal func cs_resolveRenamingIdentities() -> [String: (entity: NSEntityDescription, versionHash: Data)] {
return self.entitiesByName.reduce(into: [:], { (result, entity: (name: String, description: NSEntityDescription)) in
result[entity.description.renamingIdentifier ?? entity.name] = (entity.description, entity.description.versionHash)
})
}
}