CODEWITHSUNDEEP
objective-cnaming-conventions
osxdev12
osxdev12

Reputation: 163

What is your alternative name for ID variable in Objective-C?

Since "id" is a keyword in Objective-C what alternative name do you use for ID variable (e.g. PK field)?

Upvotes: 14

Views: 4219

Answers (6)

halbano
halbano

Reputation: 1305

Using id is a bad idea for me. I almost use 'uid' or 'cid' for Users and Clients respectively. I use the first letter of the model name to avoid the reserved word.

Upvotes: 0

Konrad77
Konrad77

Reputation: 2535

I almost use 'guid' NSString *guid NSNumber *guid.

http://en.wikipedia.org/wiki/Globally_unique_identifier

Upvotes: 0

jscs
jscs

Reputation: 64002

I think it should be noted that the compiler can distinguish between id in the type specifier position and id in the variable name position. That is,

NSUInteger id;
id = 10;

will compile just fine (as, indeed, will id id; id = [NSNumber numberWithInt:10];). (You could also uppercase it: ID.) That said, those are all horrible ideas. Don't use them. Forget I even said that.

The style in Cocoa programming is to tend towards verbosity, so (as all the earlier answers have suggested) the best practice is probably to write it all out: identifier or dinglehopferID.

Upvotes: 18

Tommy
Tommy

Reputation: 100622

I tend to use either 'identifier' — if there's really no better alternative — or something domain specific like 'programmeID' which sort of says 'this is the primary key, but only with respect to this domain'.

It's actually quite rare that you have to think in terms of primary keys within Cocoa. Core Data preserves object graphs without any nomination of primary keys, NSPredicates don't give inherently any additional weight to a field that happens to be unique per object and NSDictionarys tend to be built in an adhoc fashion.

Upvotes: 0

justin
justin

Reputation: 104698

It often depends on context. Simply, identifier if I'm not feeling particularly creative.

Upvotes: 0

Noah Witherspoon
Noah Witherspoon

Reputation: 57149

identifier, or something more specific like userID.

Upvotes: 3

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