Welcome to the documentation for MTLParseAdapter. In this guide, you will find detailed information on how to use MTLParseAdapter in your iOS app development projects. MTLParseAdapter is a powerful framework that provides a convenient way to integrate Mantle and Parse SDK together.
Installation
To get started with MTLParseAdapter, follow these steps:
- Ensure that you have the latest version of CocoaPods installed on your system.
- Navigate to your Xcode project directory using the terminal.
- Create a Podfile by running the command
pod init
. - Edit the Podfile and add the following line:
pod 'MTLParseAdapter'
- Save the Podfile and run the command
pod install
to install MTLParseAdapter.
Usage
Prerequisites
In order to use MTLParseAdapter, you need to have a basic understanding of Mantle and Parse SDK. Make sure you have these frameworks integrated into your project.
Basic Setup
Follow the steps below to set up MTLParseAdapter in your project:
- Import the MTLParseAdapter module into your class:
import MTLParseAdapter
- Extend the
MTLParseAdapter
class in your model class:
class MyModel: MTLParseAdapter {
// Your model class implementation
}
- Create a subclass of
MTLAdapter
and implement the required methods:
class MyAdapter: MTLAdapter {
override func parseClassName() -> String {
// Return the name of your Parse class
}
override func uniqueIdentifierKey() -> String {
// Return the unique identifier key for your objects
}
}
- Instantiate an instance of your adapter class and assign it to your model class:
let myAdapter = MyAdapter()
MyModel.adapter = myAdapter
Querying Data
Making queries using MTLParseAdapter is simple and straightforward. Follow the example below to query data:
- Create a query object using the query class provided by Parse SDK:
let query = PFQuery(className: "MyClass")
- Execute the query using the
fetchObjects
method of your adapter class:
myAdapter.fetchObjects(query) { objects, error in
if let objects = objects {
// Process objects
} else if let error = error {
// Handle error
}
}
Advanced Usage
Relations
MTLParseAdapter supports Parse’s relations feature. To define a relation between objects, follow these steps:
- Create a relationship property in your model class:
class User: MTLParseAdapter {
var friends: PFRelation?
}
- Implement the
relationships
method in your adapter class:
class UserAdapter: MTLAdapter {
override func relationships() -> [String: MTLRelationship] {
return ["friends": MTLRelationship(type: .relation, parseClassName: "User")]
}
}
- Use the relationship property in your code:
let user = User()
user.friends = PFRelation(className: "User")
Subclassing
MTLParseAdapter supports Parse’s subclassing feature. To create a subclass of your model class, follow these steps:
- Create a new class that extends your model class:
class SpecialUser: User {
// SpecialUser implementation
}
- Create a new subclass of your adapter class:
class SpecialUserAdapter: UserAdapter {
override func parseClassName() -> String {
return "SpecialUser"
}
}
- Instantiate an instance of your adapter subclass and assign it to your model subclass:
let specialAdapter = SpecialUserAdapter()
SpecialUser.adapter = specialAdapter
Troubleshooting
Common Issues
Here are some common issues you may encounter while using MTLParseAdapter:
- Error: “Could not find any linked parse objects for the given relation.”
- This error occurs when the relation property in your model class has not been assigned a valid
PFRelation
object. - Error: “Parse error 101: Invalid session token.”
- This error typically occurs when the user’s session token is invalid or expired. Make sure you authenticate the user before making any queries or modifications.
Support
If you have any questions, issues, or suggestions regarding MTLParseAdapter, please feel free to reach out to our support team at support@mtlparseadapter.com.