ISParseBind

With ISParseBind you can save, update and query PFObjects using the power of Xcode Interface Builder resources.

​ https://www.youtube.com/watch?v=WCZRNC_mHNQ

Supported Components:

• UITextField
• TextView
• UIImageView
• UISlider
• UISwitch
• UILabel (Read Only)
• UIButton (Comming soon for Radio Button)

Custom Components:

• You can implement ISParseBindable protocol to create your own component.
• All custom components need to subclass one of the supported components and to implement ISParseBindable

Requirements:

• iOS 9 +
• Swift 3

Install with Cocoapods:

• pod 'ISParseBind'

How does it work? Interface Builder Step

• Add a UIView in your xib/story board and set that as ISParseBindView subclass.
• Add some components that implement ISParseBindable in that ISParseBindView.
• On the Attributes Inspector, fill: FieldType, FieldPath and Persist - the others aren't required.
• After setting up the components, you need right click on your ISParseBindView and bind it with ISParseBindable components.
• Create an @IBoutlet to bind your ISParseBindView.

How does it work in practice? Code Step

Setup Parse Server credentials in AppDelegate, on "didFinishLaunchingWithOptions" method:

    let parseConfiguration = ParseClientConfiguration(block: { (ParseMutableClientConfiguration) -> Void in
        ParseMutableClientConfiguration.applicationId = "applicationID"
        ParseMutableClientConfiguration.clientKey = "clientKey"
        ParseMutableClientConfiguration.server = "serverURL"
    })
    
    Parse.initialize(with: parseConfiguration)

In some UIViewController, do:

1:

import ISParseBind

2:

@IBOutlet var parseBindView:ISParseBindView!

3: Implement ISParseBindViewDelegate.

It's not mandatory, but if you need to intercept some methods of before or after processing, implement:

parseBindView.delegate = self

extension yourViewController : ISParseBindViewDelegate {
  func willSave(view: ISParseBindView, object: PFObject) -> PFObject? {
        //If you need, you can intercept the current PFObject that will be saved and change some attributes before that. For example:
        //if object.parseClassName == "Car" {
        //    object["color"] = "Yellow"
        //}
        return object
    }
    
  func didSave(view: ISParseBindView, object: PFObject, isMainEntity:Bool, error: Error?) {
        
  }
  
  func didFetch(view: ISParseBindView, error: Error?) {
      print("finish fetch")
  }  
  
  func willFill(component: Any, value: Any) -> Any? {
      //Check wich component will be filled and return a custom value
      if let component = component as? UITextField, component == txtName {
          return "\(value as! String) Smith"

      //Return nil if you want to ignore the fill
      }else if let component = component as? UIImageView, component == imgPicture {
          return nil
      }

      return value
   }
    
  func didFill(component: Any, value: Any) { }

  func willSet(component: Any, value: Any) -> Any? {
      //Check wich component will be setup and return a custom value
      if let component = component as? UIImageView, component == imgPicture {
          return getImageInGrayScale(imgPicture.image)
      }        
      return value
  }

  func didSet(component: Any, value: Any) { }  
}

4:

self.parseBindView.save()

5: Optional Fetch/Query data. In viewDidLoad(), do:

self.parseBindView.parseObject = PFObject(withoutDataWithClassName: "SomeClass", objectId: "YYYYXXX")

ISParseBindable vars

Learn about how to use variables of ISParseBindable protocol works.

Variable	Type	Description
Required	Bool (optional)	Fill component is mandatory
Required Error	String (optional)	Error message if component is not filled
Field Type	String: 'Text', 'Number', 'Logic' or 'Image'	This is necessary for the algorithm to cast correctly for the corresponding field type in Parse.
Filed Type Error	String (optional)	Cast error message
Field Path	String	Path of the field on your class structure, for example: 'vehicle.brand.car.model'. Vehicule will be your main entity, 'Brand' and 'Car' will be relations class that will be created automatically, and 'model' will be the field of 'Car' Class.
Persist	Bool	If persist = false then this field will only use "read only" mode.

Developers can use optionals ISParseBindable vars to create your own field validator.

FieldTypeError, Required and Required Error is not used in ISParseBind algorithm. You can use as Helper to make your own validation rule.

Class Structure

• Sample of Input in Field Path: "vehicle.brand.car.model", will generate this class structure:

  {
      vehicle = {
          brand = {
           	 car = {
              	     model: 
            	 }
          }
      }
  }

  • "model" value depends of its component's type. For example, if the component is a UITextField or a UITextView, the value will be a String. If the component is a UIImageView, however, the value will be a UIImage that will be cast to a PFFile in the algorithm.
  • In the above dictionary structure, the algorithm will generate 3 classes in the Parse Server: Vehicule, Brand and Car.
  • The last string after "." in the fieldPath will always be the field in Parse Server. 'model', in the given example, will be a field and not a class.