I'll show some sample scripts to access Core Data using "call method".
This is just an experiment. I don't think that this is a good idea...
Download "EventManager.zip" from this URL.
http://homepage.mac.com/ssfactory/
The original is Apple's Core Data example.
(/Developer/Examples/CoreData/EventManager/)
I changed it into ASS application.
Open "CranberryFestival.events" in "Sample Event Files" folder with
EventManager.app, then try following AppleScripts.
1. sample script for getting all values of all objects.
tell application "EventManager"
set managedObjectContext to call method "managedObjectContext" of document 1
set registeredObjects to call method "registeredObjects" of managedObjectContext
set allObjects to call method "allObjects" of registeredObjects
set allRecords to {}
repeat with theObject in allObjects
set theEntity to call method "entity" of theObject
set allKeys to call method "allKeysOfEntity:" of document 1 with parameter theEntity
set allValues to {}
repeat with theKey in allKeys
set theValue to call method "primitiveValueForKey:" of theObject with parameter theKey
try
theValue
on error -- set missing value when failed to get primitive value
set theValue to missing value
end try
set end of allValues to theValue
end repeat
set end of allRecords to call method "dictionaryWithObjects:forKeys:" of class "NSDictionary" with parameters {allValues, allKeys}
end repeat
return allRecords
end tell
2. sample script for getting values of 'Event' object whose 'name' contains 're'.
tell application "EventManager"
set managedObjectContext to call method "managedObjectContext" of document 1
set entityDescription to call method "entityForName:inManagedObjectContext:" of class "NSEntityDescription" with parameters {"Event", managedObjectContext}
set predicate to call method "predicateWithFormat:" of class "NSPredicate" with parameter "name contains 're'"
set foundObjects to call method "executeQueryWithEntity:predicate:" of document 1 with parameters {entityDescription, predicate}
set allKeys to call method "allKeysOfEntity:" of document 1 with parameter entityDescription
set allRecords to {}
repeat with theObject in foundObjects
set allValues to {}
repeat with theKey in allKeys
set theValue to call method "primitiveValueForKey:" of theObject with parameter theKey
try
theValue
on error -- set missing value when failed to get primitive value
set theValue to missing value
end try
set end of allValues to theValue
end repeat
set end of allRecords to call method "dictionaryWithObjects:forKeys:" of class "NSDictionary" with parameters {allValues, allKeys}
end repeat
return allRecords
end tell
Hope this helps.
SSFactory
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