[5.2] Cast unique validation exclude id to integer

[sakalauskas]

I have this quite complex validation rule and I use with mongodb:

unique:mongodb.responses,RY7bC4VBFdzFWBS3.age,123,visitor_id,survey_id,564ce591c560ca2c6a8b4568

The problem occurs that in MongoDB where = 123 and where = '123' are two different queries, where in MySQL there is no difference.

Therefore I really need to cast ID attribute to integer to have it return the correct count for unique validation and I suppose that it can only be done from here.

[gpedro]

I may be wrong, but if you add integer it does the cast?

integer | unique:mongodb.responses, ...

[sakalauskas]

@gpedro Would be great if it worked. But your suggested solution adds validation to the field, but does not cast the except in unique:table,column,except,idColumn rule definition.

[sakalauskas]

Thanks @GrahamCampbell for updating title, didn't knew to which branch (5.1 or 5.2 or 5.3) to tag this PR.

[taylorotwell]

What if someone is using UUIDs?

[sakalauskas]

@taylorotwell Well, if its really a string, then do not cast it and leave like it is?

I've added conditional check to check if it is really an integer.
if (filter_var($id, FILTER_VALIDATE_INT) !== false)

Don't know how I can better check for casting.

Would prefixing 'int:' the id might be better?

e.g.
if (starts_with($id, 'int:')) { $id = intval($id); }

[taylorotwell]

I see thanks.

[sakalauskas]

Thanks @taylorotwell !!!

[GrahamCampbell]

Should be just (int) $id. The two are the same, but this version is faster.