Mixing
iOS Core Data - Double (NSNumber) value changes the second time I access it
I have a Core Data that has a Double number, and the Swift class has it as NSNumber. When I open a ViewController, then access the value, it's fine. If I access it again, the value changes. For example, one object has its NSNumber change from 56.5 to 7770.5, every time. Does this have anything to do with choosing Double and NSNumber instead of Decimal and NSDecimalNumber?
I might perform a migration if that's true, but I can't lose the previous value that was saved.
ios swift core-data
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
add a comment |
I have a Core Data that has a Double number, and the Swift class has it as NSNumber. When I open a ViewController, then access the value, it's fine. If I access it again, the value changes. For example, one object has its NSNumber change from 56.5 to 7770.5, every time. Does this have anything to do with choosing Double and NSNumber instead of Decimal and NSDecimalNumber?
I might perform a migration if that's true, but I can't lose the previous value that was saved.
ios swift core-data
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
1
number type will affect precision but not a complete change of value. You probably have a bug somewhere.
– Sulthan
Nov 21 '18 at 15:28
1
Did you try running your debugger to monitor the value you are saving from beginning to end?
– Andy Ibanez
Nov 21 '18 at 16:45
Can you show some code? Also, do you have ARC turned on? This sounds like anNSNumberthat's getting released and perhaps another object is being put in its place.
– user1118321
Nov 21 '18 at 18:23
@AndyIbanez It was actually an array of this object. I clicked watch variable and it stopped at 'symbol stub for: swift_bridgeObjectRelease'
– Questioner
Nov 22 '18 at 11:09
@user1118321 It stopped at 'symbol stub for: swift_bridgeObjectRelease', which implies you're right. The thing is, the other values in the object (which is an array element) stay the same.
– Questioner
Nov 22 '18 at 11:10
add a comment |
I have a Core Data that has a Double number, and the Swift class has it as NSNumber. When I open a ViewController, then access the value, it's fine. If I access it again, the value changes. For example, one object has its NSNumber change from 56.5 to 7770.5, every time. Does this have anything to do with choosing Double and NSNumber instead of Decimal and NSDecimalNumber?
I might perform a migration if that's true, but I can't lose the previous value that was saved.
ios swift core-data
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
I have a Core Data that has a Double number, and the Swift class has it as NSNumber. When I open a ViewController, then access the value, it's fine. If I access it again, the value changes. For example, one object has its NSNumber change from 56.5 to 7770.5, every time. Does this have anything to do with choosing Double and NSNumber instead of Decimal and NSDecimalNumber?
I might perform a migration if that's true, but I can't lose the previous value that was saved.
ios swift core-data
ios swift core-data
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
edited Nov 23 '18 at 10:54
wvteijlingen
8,59112544
8,59112544
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
asked Nov 21 '18 at 15:25
QuestionerQuestioner
96321134
96321134
1
number type will affect precision but not a complete change of value. You probably have a bug somewhere.
– Sulthan
Nov 21 '18 at 15:28
1
Did you try running your debugger to monitor the value you are saving from beginning to end?
– Andy Ibanez
Nov 21 '18 at 16:45
Can you show some code? Also, do you have ARC turned on? This sounds like anNSNumberthat's getting released and perhaps another object is being put in its place.
– user1118321
Nov 21 '18 at 18:23
@AndyIbanez It was actually an array of this object. I clicked watch variable and it stopped at 'symbol stub for: swift_bridgeObjectRelease'
– Questioner
Nov 22 '18 at 11:09
@user1118321 It stopped at 'symbol stub for: swift_bridgeObjectRelease', which implies you're right. The thing is, the other values in the object (which is an array element) stay the same.
– Questioner
Nov 22 '18 at 11:10
add a comment |
1
number type will affect precision but not a complete change of value. You probably have a bug somewhere.
– Sulthan
Nov 21 '18 at 15:28
1
Did you try running your debugger to monitor the value you are saving from beginning to end?
– Andy Ibanez
Nov 21 '18 at 16:45
Can you show some code? Also, do you have ARC turned on? This sounds like anNSNumberthat's getting released and perhaps another object is being put in its place.
– user1118321
Nov 21 '18 at 18:23
@AndyIbanez It was actually an array of this object. I clicked watch variable and it stopped at 'symbol stub for: swift_bridgeObjectRelease'
– Questioner
Nov 22 '18 at 11:09
@user1118321 It stopped at 'symbol stub for: swift_bridgeObjectRelease', which implies you're right. The thing is, the other values in the object (which is an array element) stay the same.
– Questioner
Nov 22 '18 at 11:10
1
1
number type will affect precision but not a complete change of value. You probably have a bug somewhere.
– Sulthan
Nov 21 '18 at 15:28
number type will affect precision but not a complete change of value. You probably have a bug somewhere.
– Sulthan
Nov 21 '18 at 15:28
1
1
Did you try running your debugger to monitor the value you are saving from beginning to end?
– Andy Ibanez
Nov 21 '18 at 16:45
Did you try running your debugger to monitor the value you are saving from beginning to end?
– Andy Ibanez
Nov 21 '18 at 16:45
Can you show some code? Also, do you have ARC turned on? This sounds like an
NSNumber that's getting released and perhaps another object is being put in its place.– user1118321
Nov 21 '18 at 18:23
Can you show some code? Also, do you have ARC turned on? This sounds like an
NSNumber that's getting released and perhaps another object is being put in its place.– user1118321
Nov 21 '18 at 18:23
@AndyIbanez It was actually an array of this object. I clicked watch variable and it stopped at 'symbol stub for: swift_bridgeObjectRelease'
– Questioner
Nov 22 '18 at 11:09
@AndyIbanez It was actually an array of this object. I clicked watch variable and it stopped at 'symbol stub for: swift_bridgeObjectRelease'
– Questioner
Nov 22 '18 at 11:09
@user1118321 It stopped at 'symbol stub for: swift_bridgeObjectRelease', which implies you're right. The thing is, the other values in the object (which is an array element) stay the same.
– Questioner
Nov 22 '18 at 11:10
@user1118321 It stopped at 'symbol stub for: swift_bridgeObjectRelease', which implies you're right. The thing is, the other values in the object (which is an array element) stay the same.
– Questioner
Nov 22 '18 at 11:10
add a comment |
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1
number type will affect precision but not a complete change of value. You probably have a bug somewhere.
– Sulthan
Nov 21 '18 at 15:28
1
Did you try running your debugger to monitor the value you are saving from beginning to end?
– Andy Ibanez
Nov 21 '18 at 16:45
Can you show some code? Also, do you have ARC turned on? This sounds like an
NSNumberthat's getting released and perhaps another object is being put in its place.– user1118321
Nov 21 '18 at 18:23
@AndyIbanez It was actually an array of this object. I clicked watch variable and it stopped at 'symbol stub for: swift_bridgeObjectRelease'
– Questioner
Nov 22 '18 at 11:09
@user1118321 It stopped at 'symbol stub for: swift_bridgeObjectRelease', which implies you're right. The thing is, the other values in the object (which is an array element) stay the same.
– Questioner
Nov 22 '18 at 11:10