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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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38
Sources/NSEntityDescription+Migration.swift
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@@ -32,24 +32,30 @@ import Foundation
internal extension NSEntityDescription {
@nonobjc
internal func cs_resolvedAttributeRenamingIdentities() -> [String: (attribute: NSAttributeDescription, versionHash: Data)] {
var mapping: [String: (attribute: NSAttributeDescription, versionHash: Data)] = [:]
for (attributeName, attributeDescription) in self.attributesByName {
mapping[attributeDescription.renamingIdentifier ?? attributeName] = (attributeDescription, attributeDescription.versionHash)
}
return mapping
internal func cs_resolveAttributeNames() -> [String: (attribute: NSAttributeDescription, versionHash: Data)] {
return self.attributesByName.reduce(into: [:], { (result, attribute: (name: String, description: NSAttributeDescription)) in
result[attribute.name] = (attribute.description, attribute.description.versionHash)
})
}
@nonobjc
internal func cs_resolvedRelationshipRenamingIdentities() -> [String: (relationship: NSRelationshipDescription, versionHash: Data)] {
var mapping: [String: (relationship: NSRelationshipDescription, versionHash: Data)] = [:]
for (relationshipName, relationshipDescription) in self.relationshipsByName {
mapping[relationshipDescription.renamingIdentifier ?? relationshipName] = (relationshipDescription, relationshipDescription.versionHash)
}
return mapping
internal func cs_resolveAttributeRenamingIdentities() -> [String: (attribute: NSAttributeDescription, versionHash: Data)] {
return self.attributesByName.reduce(into: [:], { (result, attribute: (name: String, description: NSAttributeDescription)) in
result[attribute.description.renamingIdentifier ?? attribute.name] = (attribute.description, attribute.description.versionHash)
})
}
@nonobjc
internal func cs_resolveRelationshipNames() -> [String: (relationship: NSRelationshipDescription, versionHash: Data)] {
return self.relationshipsByName.reduce(into: [:], { (result, relationship: (name: String, description: NSRelationshipDescription)) in
result[relationship.name] = (relationship.description, relationship.description.versionHash)
})
}
@nonobjc
internal func cs_resolveRelationshipRenamingIdentities() -> [String: (relationship: NSRelationshipDescription, versionHash: Data)] {
return self.relationshipsByName.reduce(into: [:], { (result, relationship: (name: String, description: NSRelationshipDescription)) in
result[relationship.description.renamingIdentifier ?? relationship.name] = (relationship.description, relationship.description.versionHash)
})
}
}