Question

I am working in the iPhone messaging app. Am using coredata to store the messages(Sent by the user and received from the webservice), username, date and time. I want to save the username once and add the send/received messages and date to the corresponding username.

Like this way:

No   Name        Date                ReceivedMessage        SendMessage
1    Gopinath    27 june, 12.01pm    Hi                     ----
                 27 june, 12.02pm    ----                   Hello

2    ABCD        26 june, 1.01pm     Hi                     ----
                 26 june, 2.02pm     ----                   Hello
                 27 june, 8pm        Hi Gopi                ----

Received messages should be store when i receive from service and Sendmessage will be stored when the user composed and send the message.

Can anyone please help me how to store the data like this using CoreData in my project? Thanks in advance.

Answer 1

Create an entity with the following attributes:

Message
- mid: uint // message ID
- name: string
- date: date
- sent: boolean
- message: string

And Messages are created with:

[NSEntityDescription insertNewObjectForEntityForName: @"Message" inManagedObjectContext: context]