Ios foundations module 4 DataService error

App Development
1

When making the update to the json data for the RecipeListApp i got an error- Value of type ‘String’ has no member ‘id’- However i wrote my class exactly as the lesson instructed.

I have put the code I used in a gist above

2

@JohanneN

Hi Johanne,

Welcome to the code crew community.

Post all of your DataService code in a reply so that we can see the complete context.

Paste your code in as text, rather than providing a screenshot.

To format the code nicely, place 3 back-ticks ``` on the line above your code and 3 back-ticks ``` on the line below your code. Like this:

```
Code goes here
```

The 3 back-ticks must be the ONLY characters on the line. The back-tick character is located on the same keyboard key as the tilde character ~ (which is located below the Esc key). You can also highlight an entire code block and click the </> button on the toolbar to wrap the block for you.

This also makes it easier for anyone assisting as they can copy the code and carry out some testing.

3

Here is the rest of my DataService code

import Foundation

class DataService {
    
    
    
   static func getLocalData() -> [Recipe] {
        
       
        // Parse local json file
        
        // Get a url path to the json file
        let pathString = Bundle.main.path(forResource: "recipes", ofType: "json")
        
        // Check if pathString is not nil, otherwise...
        guard pathString != nil else {
            return [Recipe]()
        }
       
        // Create a url object
        let url = URL(fileURLWithPath: pathString!)
    
        do {
            // create a data object
            let data = try Data(contentsOf: url)
            
            // decode the data with a json decoder
            let decoder = JSONDecoder()
            
            do {
                let recipeData = try decoder.decode([Recipe].self, from: data)
                // add the unique IDs
                for r in recipeData {
                    r.id = UUID()
                    
                    for i in r.ingredients{
                        i.id = UUID()
                    }
                    
                }
                // Return the recipes
                return recipeData
            }
            catch {
                // error with parsing json
                print(error)
            }
        }
        catch {
            print(error)
        }
        
     return [Recipe]()
    }
}

Thanks for the reply!

4

Hmmmm, that should work.

Maybe try cleaning your Build Folder - Shift + Command + K

5

Cleaning the build folder cleared the error

Thanks for the help Chris!

1 Like