CODEWITHSUNDEEP
iosobjective-curlnsstringplist
Hulk_SMASH
Hulk_SMASH

Reputation: 553

Generate a filename based on a URL on iOS?

I need to store some persistent data in my application that should be specific to the URL i am requesting data from. For example, if i make a request to http://www.example.com/a, i need to store a plist in my documents folders that is unique to that URL. So if another request is made to the same URL, i can go edit that same plist in my documents folder.

Temporarily I am generating it this way but i need a better solution:

NSString *filename = stringForURL;
filename = [filename stringByReplacingOccurrencesOfString:@"/" withString:@"__"];
filename = [filename stringByReplacingOccurrencesOfString:@"?" withString:@""];
filename = [filename stringByAppendingPathExtension:@"plist"];

And then i write my dictionary with that filename.

Edit: Ok I don't think i explained myself clearly. I basically want to generate a unique filename for a given URL. Any same URL should generate the same filename, and 2 different URLs should generate a different filename.

Upvotes: 1

Views: 412

Answers (2)

Hulk_SMASH
Hulk_SMASH

Reputation: 553

Using an MD5 hash where the key is the URL did the trick.

Upvotes: 2

Mr UziBazooka
Mr UziBazooka

Reputation: 222

If i understand your problem you want to get the same URL back after you have changed it. If so use the same code on when looking for the string.

Create an array of all the urls you have changed and saved. 

NSString *theURLyouAreLookingFor= "myURL" ;
theURLyouAreLookingFor = [filename stringByReplacingOccurrencesOfString:@"/" withString:@"__"];
theURLyouAreLookingFor = [filename stringByReplacingOccurrencesOfString:@"?" withString:@""];

And the use isEqualTo: with the theURLyouAreLookingFor and look it up in the array of saved URLs.

Not the best way of explaining this, but hope it helps.

Upvotes: 0

Related Questions