I have two tables in MySQL: football_fixtures and weekly_fixtures.
In my code I have two classes
class FootballFixture
end

and

class WeeklyFixture
  has_many :football_fixtures
end

the WeeklyFixture class has more code than this, mostly validation

In the console window I do this

wf = WeeklyFixture.new
wf.somefield = somevalue
wf.save!

and everything is OK

however if I do

wf = WeeklyFixture(6) # where 6 is an id in the table so the wf is
found!
wf.football_fixtures[0].name = "value"
wf.save!

I get a return value of true, but no data is written to the database.

I have the log visible on another terminal (tail -f development.log),
and I don't see any update call being made. (I do see selects being
made when I read the records)

I think I'm missing something fundamental here. I assumed that when I
updated the related fields and wrote the parent model the the DB then
the save would also write the related fields, but this is not
happening.

BTW, if I do
wf.football_fixtures[0].save

that does work!

What (presumably simple) magic incantation am I missing?

Thanks,

Kevin Jones


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