Single 'add_index' line in migration file produces multiple 'add_index' lines in my schema. (?)

Rails
1

Hello,
I’m a newbie to Rails, and to this Group - just putting that out there.
Here’s my question:

I have a migration file for a new table, and at the end of the file I
added
the line:
add_index: :table_name, :name

I was trying to generate an index on a single column in my database.

But after running rake db:migrate … I see 3 add_index lines added to
my
schema.rb file.

There’s one for the :name column of the table, but rails seems to have
also
generated an add_index line for each column in the table.

Strange. Anyone have ideas on this?
Thank you!

2

On 13 July 2015 at 22:54, Bart D. [email protected] wrote:

But after running rake db:migrate … I see 3 add_index lines added to my
schema.rb file.

There’s one for the :name column of the table, but rails seems to have also
generated an add_index line for each column in the table.

If you leave out your add_index do all three disappear?
Which version of Rails are you running?

Colin

3

What a coincidence. I just ran rails g model, and each field was
duplicated.