Monday, October 3, 2011
On Mon, Oct 3, 2011 at 9:56 PM, Romain Maz BILLOIR <billoirr@gmail.com> wrote:
-- This issue is making me crazy... Look at this:
ruby-1.9.3-rc1 :071 > @hunting = Hunting.find(1)
Hunting Load (0.5ms) SELECT "huntings".* FROM "huntings" WHERE
"huntings"."id" = $1 LIMIT 1 [["id", 1]]
=> #<Hunting id: 1, path: "((7,6),(5,4))", created_at: "2011-10-02
16:02:11", updated_at: "2011-10-03 19:16:44">
ruby-1.9.3-rc1 :072 > @hunting.path
=> ((7,6),(5,4))
ruby-1.9.3-rc1 :073 > @hunting.changed?
=> false
ruby-1.9.3-rc1 :074 > @hunting.changes
=> {}
ruby-1.9.3-rc1 :075 > @hunting.one_step_forward
=> (7,6)
ruby-1.9.3-rc1 :076 > @hunting.path
=> ((5,4))
ruby-1.9.3-rc1 :077 > @hunting.changed?
=> true
ruby-1.9.3-rc1 :078 > @hunting.changes
=> {"path"=>[((5,4)), ((5,4))]}
Strange, I would expect here:
=> {"path"=>["((7,6),(5,4))", "((5,4))"]}
ruby-1.9.3-rc1 :079 > @hunting.changed_attributes
=> {"path"=>((5,4))}
Strange, I would expect here:
=> {"path"=>"((7,6),(5,4))"}
ruby-1.9.3-rc1 :080 > @hunting.save
(0.2ms) BEGIN
(0.5ms) UPDATE "huntings" SET "path" = '((7,6),(5,4))',
"updated_at" = '2011-10-03 19:30:15.467748' WHERE "huntings"."id" = 1
(23.5ms) COMMIT
=> true
What happens, when on line :075 of your example above, you
simply say
@hunting.path '((5,4))'
instead of the call to Hunting#one_step_forward and replay the rest of your
example. Does it behave as expected then?
Are there any before_save hooks at play in your Hunting model?
Actually, I tried to replay your example (using a simple string assignment)
in Rails 3.1.1.rc1 and found the different results for .changes and
.changed_attributes after the assignment, mentioned above.
004:0> j = Job.find(1)
Job Load (0.5ms) SELECT "jobs".* FROM "jobs" WHERE "jobs"."id" = $1 LIMIT 1 [["id", 1]]
=> #<Job id: 1, created_at: "2011-10-03 20:56:27", updated_at: "2011-10-03 21:02:56", name: "foo", path: "((7,6),(5,4))">
005:0> j.path
=> "((7,6),(5,4))"
006:0> j.changed?
=> false
007:0> j.path = "((5,4))"
=> "((5,4))"
008:0> j.changed?
=> true
009:0> j.changes # this is different from your result and what I expected
=> {"path"=>["((7,6),(5,4))", "((5,4))"]}
010:0> j.changed_attributes # this is the original value, as documented
=> {"path"=>"((7,6),(5,4))"}
011:0> j.path_was
=> "((7,6),(5,4))"
012:0> j.path
=> "((5,4))"
013:0> j.save
(0.1ms) BEGIN
(0.4ms) UPDATE "jobs" SET "path" = '((5,4))', "updated_at" = '2011-10-03 21:06:21.336787' WHERE "jobs"."id" = 1
(0.7ms) COMMIT
=> true
014:0> j = Job.find(1)
Job Load (0.4ms) SELECT "jobs".* FROM "jobs" WHERE "jobs"."id" = $1 LIMIT 1 [["id", 1]]
=> #<Job id: 1, created_at: "2011-10-03 20:56:27", updated_at: "2011-10-03 21:06:21", name: "foo", path: "((5,4))">
HTH,
Peter
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