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Fixes attribute creation for models with subentities. Only creates th… #24

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Fixes attribute creation for models with subentities. Only creates th… #24

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40 changes: 28 additions & 12 deletions Seam/Seam/SMStoreChangeSetHandler.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -53,17 +53,23 @@ class SMStoreChangeSetHandler {
}

func addExtraBackingStoreAttributes(toEntity entity: NSEntityDescription) {
let recordIDAttribute: NSAttributeDescription = NSAttributeDescription()
recordIDAttribute.name = SMLocalStoreRecordIDAttributeName
recordIDAttribute.optional = false
recordIDAttribute.indexed = true
recordIDAttribute.attributeType = NSAttributeType.StringAttributeType
entity.properties.append(recordIDAttribute)
let recordEncodedValuesAttribute: NSAttributeDescription = NSAttributeDescription()
recordEncodedValuesAttribute.name = SMLocalStoreRecordEncodedValuesAttributeName
recordEncodedValuesAttribute.attributeType = NSAttributeType.BinaryDataAttributeType
recordEncodedValuesAttribute.optional = true
entity.properties.append(recordEncodedValuesAttribute)
let attributes = entity.attributesByName

if attributes[SMLocalStoreRecordIDAttributeName] == nil {
let recordIDAttribute: NSAttributeDescription = NSAttributeDescription()
recordIDAttribute.name = SMLocalStoreRecordIDAttributeName
recordIDAttribute.optional = true
recordIDAttribute.indexed = true
recordIDAttribute.attributeType = NSAttributeType.StringAttributeType
entity.properties.append(recordIDAttribute)
}
if attributes[SMLocalStoreRecordEncodedValuesAttributeName] == nil {
let recordEncodedValuesAttribute: NSAttributeDescription = NSAttributeDescription()
recordEncodedValuesAttribute.name = SMLocalStoreRecordEncodedValuesAttributeName
recordEncodedValuesAttribute.attributeType = NSAttributeType.BinaryDataAttributeType
recordEncodedValuesAttribute.optional = true
entity.properties.append(recordEncodedValuesAttribute)
}
}

func changeSetEntity() -> NSEntityDescription {
Expand Down Expand Up @@ -103,9 +109,19 @@ class SMStoreChangeSetHandler {
func modelForLocalStore(usingModel model: NSManagedObjectModel) -> NSManagedObjectModel {
let backingModel: NSManagedObjectModel = model.copy() as! NSManagedObjectModel
for entity in backingModel.entities {

if entity.superentity != nil { // only add to super-entities, not the sub-entities
continue
}
if entity.name == SMLocalStoreChangeSetEntityName {
continue
}

self.addExtraBackingStoreAttributes(toEntity: entity)
}
backingModel.entities.append(self.changeSetEntity())
if backingModel.entitiesByName[SMLocalStoreChangeSetEntityName] == nil {
backingModel.entities.append(self.changeSetEntity())
}
return backingModel
}

Expand Down