CODEWITHSUNDEEP
iosobjective-ccocoa-touchnspredicatestring-comparison
user3570579
user3570579

Reputation: 65

Compare NSArray in a for loop with given input with nspredicate

i really don't know how to ask this since it was really painful to come up with a question title but i hope you will be able to help me

I got a plist.

i read it into an nsarray 

NSArray *arrayOfPlist = [[NSArray alloc] initWithContentsOfFile:path];

this pList is in this format.

<array>
    <dict>
                <key>category</key>
        <string>desert</string>
        <key>numberOfPerson</key>
        <string>3</string>
        <key>recipeImage</key>
        <string>asdasd.jpg</string>
        <key>time</key>
        <string>15</string>
        <key>recipeName</key>
        <string>asd asdad</string>
        <key>recipeDetail</key>
        <string>asdasd</string>
        <key>recipeIngredients</key>

User enters inputs into a textField.

where i store it as searchText

and i use NSPredicate to see if RecipeIngredients contains it.

At this point i m having troubles

When i try to use this array 

        NSArray*        haves = [recipeIngredientsOfOneRecipeString componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@","]];

it gives me this error [<__NSCFString 0x109291950> valueForUndefinedKey:]: this class is not key value coding-compliant for the key recipeIngredients.'

And the other thing is i can not imagine a proper way to check all recipeIngredients with given input.

I tried adding a bool predicate each time it returns true i incremented and when its count became same as haves.count i added it but this doesn't work either.

i am killing myself for a way to solve these problems and i m out of of ideas.

need a new perspective.

Upvotes: 0

Views: 110

Answers (1)

Pandey_Laxman
Pandey_Laxman

Reputation: 3908

You can enumerate whole plist file to match the user input using the below code

NSArray* arrOfPlist = [[NSArray alloc] initWithContentsOfFile:path];
    NSString* strMatch;//user Input
    for (NSDictionary* dict in arrOfPlist)
    {
        for (id key in dict)
        {
            if ([[dict objectForKey:key]isEqualToString:strMatch])
            {
                //user search matches do whatever code you want here

                break;
            }
        }
    }

Upvotes: 1

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