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v 2.3.2 - appropriates attributes ending in _type and _value
Reported by James B. Byrne | March 23rd, 2009 @ 05:27 PM | in 2.x
If a table has attributes ending in type or value then these attributes cannot be set.
Example:
class CreateIdentifiers < ActiveRecord::Migration
def self.up
create_table :identifiers do |t|
t.integer :entity_id
t.string :code_type, :null => false
t.string :code_value, :null => false
end
end
script/console
mi = me.identifiers.build => #mi.code_type = "Xray" => "Xray" mi.code_type => nil mn = Identifier.new => #mn.entity_id = 1 => 1 mn.code_type = "Whisky" => "Whisky" mn => #
If the write_attribute method is used instead, then the values are set but any attribute= overrides are skipped.
Example:
class Identifier < ActiveRecord::Base belongs_to :entity
def code_type=(code)
code.upcase
end
def code_value=(desc)
desc.downcase
end end
script/console
mn.write_attribute("code_type", "MixCase") => "MixCase" mn => #
Comments and changes to this ticket
-
James B. Byrne March 23rd, 2009 @ 05:31 PM
Lost example added:
Using write_attribute skips attribute= processing in model.
>> mn.write_attribute(code_type, "MixCase") NameError: undefined local variable or method `code_type' for #<Object:0x2b1bc50203f8> from (irb):19 >> mn.write_attribute("code_type", "MixCase") => "MixCase" >> mn => #<Identifier id: nil, entity_id: 1, code_type: "MixCase", code_value: nil> >> -
James B. Byrne March 23rd, 2009 @ 05:32 PM
- Title changed from “v 2.3.2 - appropriates attributed ending in _type and _value” to “v 2.3.2 - appropriates attributes ending in _type and _value”
-
James B. Byrne March 23rd, 2009 @ 05:36 PM
mi = me.identifiers.build => mi.code_type = "Xray" => "Xray" mi.code_type => nil mn = Identifier.new => mn.entity_id = 1 => 1 mn.code_type = "Whisky" => "Whisky" mn,code_type => nil
-
James B. Byrne March 23rd, 2009 @ 07:44 PM
This appears to be dependent upon whether or not the model name forms part of the attribute name. So:
mi = Identity.new => ... mi.x_type = "A Type" => "A Type" mi.x_type => "A Type" mi.identifier_type = "this type" => "this type" mi.identifier_type => nil
-
James B. Byrne March 23rd, 2009 @ 08:20 PM
- Tag changed from “2.3.2, activerecord, attributes, defect” to “invalid”
Please close. Invalid.
-
Matt Jones March 25th, 2009 @ 02:22 AM
What was the final resolution? Before closing the ticket, it's good to know what happened, in case others run into the same problem.
-
James B. Byrne April 30th, 2009 @ 08:22 PM
Sorry for the late replay, I did not get an email notice when the ticket was updated, or missed it if I did.
The error was mine. I had the attr_protected set for those fields in the model that I was testing.
-
Frederick Cheung May 7th, 2009 @ 11:20 PM
- State changed from “new” to “invalid”
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