PM84949: LOADING JSONSTORE COLLECTION WITH OBJECT INSTEAD OF ARRAY FAILS

APAR status

• Closed as program error.

Error description

• Calling load either via collection.load() or via
  WL.JSONStore.initCollection with {load: true}, will fail if the
  value returned from the adapter that is linked to the JSONStore
  collection is an Object instead of an Array.
  

Local fix

• 1) Wrap the data you are returning in an Array.  2) Instead of
  using the load: true option, you can check the db count and, if
  it's 0, invoke the adapter and pass the data to the store()
  function to add it to JSONStore.  store() will correctly handle
  a JS Object.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM Worklight and Mobile Foundation 5.0     *
  *                  developers who build applications which     *
  *                  use                                         *
  *                  JSONStore with adapters linked to their     *
  *                  JSONStore collection that return Objects    *
  *                  instead of Arrays.                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: The native implementation of            *
  *                      JSONStore always expects an array to    *
  *                      be passed to the store function, this   *
  *                      however is not enforced in the load     *
  *                      method from the JavaScript layer.       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If the problem is occurring, an error such as "Terminating app
  due to uncaught exception 'Invalid JSON structure', reason:
  'Invalid JSON structure'" may be found in the application log.
  

Problem conclusion

• The code was changed to wrap simple objects in an array so
  that the error no longer occurs.
  
  The fix for this APAR is currently targeted for inclusion in
  fixpack 5.0.6.0.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WORKLIGHT CONSU

• Fixed component ID

  5725I4301

Applicable component levels

• R505 PSY

     UP