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Posted to issues@cordova.apache.org by "Vladimir Kotikov (JIRA)" <ji...@apache.org> on 2015/11/20 10:31:11 UTC
[jira] [Updated] (CB-7906) App crashes when find() is called with
undefined desiredField members
[ https://issues.apache.org/jira/browse/CB-7906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vladimir Kotikov updated CB-7906:
---------------------------------
Labels: documentation-update iOS, (was: )
> App crashes when find() is called with undefined desiredField members
> ---------------------------------------------------------------------
>
> Key: CB-7906
> URL: https://issues.apache.org/jira/browse/CB-7906
> Project: Apache Cordova
> Issue Type: Bug
> Components: Plugin Contacts
> Affects Versions: 3.6.0
> Environment: iOS 7, iOS 8
> Reporter: Shingo Toda
> Priority: Minor
> Labels: documentation-update, iOS,
>
> Apps crash when find() is called with undefined members of ContactFieldType.
> For example, the following code sets desiredFields to {{xx}} or {{yyy}} which are actually not defined in ContactFieldType.
> {code:javascript}
> options.desiredFields = [navigator.contacts.fieldType.xx, navigator.contacts.fieldType.yyy];
> var fields = [navigator.contacts.fieldType.displayName, navigator.contacts.fieldType.name];
> navigator.contacts.find(fields, onSuccess, onError, options);
> {code}
> In Objective-C code, those undefined members are turned into {{NSNull}} object. Therefore {{calcReturnFields}} method receives {{fieldArray}} which contains {{NSNull}} objects, then analyses {{fieldStr}} NSString object which is actually {{NSNull}} at {{[fieldStr componentsSeparatedByString:@"."]}} and eventually an app crashes.
> I tweaked {{calcReturnFields}} method to ignore {{NSNull}} object as below and this looks working fine.
> {code:title=CDVContact.m}
> for (id i in fieldsArray) {
> NSMutableArray* keys = nil;
> NSString* fieldStr = nil;
> if ([i isKindOfClass:[NSNumber class]]) {
> fieldStr = [i stringValue];
> // ST modified start
> } else if([i isEqual:[NSNull null]]){
> continue;
> // ST modified end
> } else {
> fieldStr = i;
> }
> {code}
> By this modification, all invalid desiredField types are ignored and those types could be thought to be "not found". In my opinion, this behaviour would make sense to developer as {{find()}} is called with dodgy desiredField parameters then those types shouldn't be included in the returned contact data. As far as I know, at least {{find()}} for Android behaves like this.
> By the way, I couldn't see supported parameters for {{desiredField}} in document. If I look at {{ContactFieldType.js}}, those members are populated from {{Contact}}, {{ContactAddress}}, etc.. It would be nice to clearly describe all supported types.
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