Be able to use .primary() as for unique() constraint

[girardinsamuel]

Be able on a migration to use primary() this way:

table.increments("user_id").primary()

[josephmancuso]

@girardinsamuel increments is special. Increments assumes that its the primary key.

increments is the same as "auto incrementing primary column" version of the table so its a bit of an all-in-one.

What we really need to to be able to specify any one of the other column types as a primary key like:

table.unsigned_integer('col').primary()

[girardinsamuel]

@josephmancuso Yes that was a bad example but that's what I had in mind.
And increments was confusing me I wasn't sure about what was ran under the hood. thanks for clarifying.

I will update the PR then

[josephmancuso]

ok great just making sure :)

[girardinsamuel]

I have updated the test in the PR, when I am using .primary() on a simple integer column