ios - Unable to retrieve previous data with EncryptedCoreData -

after app restarted data core-data not returned properly. , fetch request particular record fails. fetchrequestcontroller not grabs record once app re-started.

i using encrypted-core-data protect data in project. able parse , save data managedobjectcontext. code looks this

for (nsdictionary *data in categories) {     //use magicrecord api record     cmcategories *obj = [cmcategories mr_findfirstbyattribute:@"uniqueid"                      withvalue:[data valueforkey:@"id"]                      incontext:managedobjectcontext];     if (!obj) {         obj = [cmcategories mr_createentityincontext:managedobjectcontext];     }     obj.name = [data valueforkey:@"categoryname"];     obj.language = [data valueforkey:@"languagecode"];     obj.uniqueid = [data valueforkey:@"id"];  } nserror *error = nil; if (![_managedobjectcontext save:&error]) {     nslog(@"error saving context: %@\n%@", [error localizeddescription], [error userinfo]);     abort(); } 

the code works without error. persistentstorecoordinator , managedobjectcontext code same this

when print obj before closing app prints

2016-01-24 23:59:11.806 chare dev[10556:158617] <cmcategories: 0x7feb00d24a90> (entity: cmcategories; id: 0x7feb02ef5890 <x-coredata://b947acd3-e248-4d4f-b81e-236e100bb34d/cmcategories/p5> ; data: {     channels =     (     );     language = en;     name = professional;     order = 0;     uniqueid = 15; }) 

but after app restart, when fetch objects , print prints this

2016-01-24 23:59:11.795 chare dev[10556:158617] <cmcategories: 0x7feb02de4aa0> (entity: cmcategories; id: 0x7feb02de5c10 <x-coredata://b947acd3-e248-4d4f-b81e-236e100bb34d/cmcategories/p2> ; data: {     channels = "<relationship fault: 0x7feb02922450 'channels'>";     language = nil;     name = nil;     order = nil;     uniqueid = nil; }) 

and if try property nsstring *string = obj.uniqueid

2016-01-24 23:59:11.795 chare dev[10556:158617] coredata: warning: nsmanagedobjectcontext delegate overrode fault handling behavior silently delete object id '0x7feb02de5c10 ' , substitute nil/0 property values instead of throwing

if use nssqlitestoretype instead of encryptedstoretype works fine. can guide me doing wrong?

because due above issue, database records added multiple times , fetch request fails fetch managed object uniqueid.

tl;dr

don't use sqlite keywords on model (properties, relationships, entities, etc).

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usually coredata safe use sqlite reserved keywords, apparently not case when using encryptedcoredata.

this #232 issue explains well.

in project had from property of 1 of models, , single property culprit.

i can see code:

2016-01-24 23:59:11.806 chare dev[10556:158617] <cmcategories: 0x7feb00d24a90> (entity: cmcategories; id: 0x7feb02ef5890 <x-coredata://b947acd3-e248-4d4f-b81e-236e100bb34d/cmcategories/p5> ; data: {     channels =     (     );     language = en;     name = professional;     order = 0;     uniqueid = 15; }) 

you using order, keyword. try remove , check.

note: after renaming property model had uninstall , install app again, not of hassle me since not published yet.