Hello all,
I’m into my first week of rails coding and I’m really enjoying it so
far.
I’ve run into a bit of an problem. I have a user model which represents
the
currently logged in user. I’m also creating a gas_reading model which
will
be a child of the user model. When I attempt to create and save a new
gas_reading its saving successfully without any exceptions but its not
storing the attributes. I’m logging the values directly before the save
call in the create method of my controller and they’re set correctly but
I
can see from the mongrel output that the sql being used does not contain
any
values.
I’ve been searching for a similar problem on here and haven’t managed to
find anything and I’ve tried hacking around as much as possible but not
been
able to make progress.
Any help would be really appreciated.
Here’s my code:
user.rb:
class User < ActiveRecord::Base
has_many :gas_readings
… lots of stuff around passwords and encryption
end
gas_reading.rb:
class GasReading < ActiveRecord::Base
validates_presence_of :value, :start_date, :end_date
belongs_to :user
attr_accessor :value, :start_date, :end_date
end
gas_reading_controller.rb:
GET /gas_readings/new
GET /gas_readings/new.xml
def new
@user = User.find(Integer(session[:user_id]))
@gas_reading = @user.gas_readings.build
end
POST /gas_readings
POST /gas_readings.xml
def create
logger.error "this is gas reading before #{params[:gas_reading]}"
@user = User.find(Integer(session[:user_id]))
@gas_reading = @user.gas_readings.build(params[:gas_reading])
logger.error "this is gas reading after #{@gas_reading.value} ,
#{@gas_reading.start_date} , #{@gas_reading.end_date}"
respond_to do |format|
if @gas_reading.save
flash[:notice] = 'GasReading was successfully created.'
format.html { redirect_to(@gas_reading) }
else
format.html { render :action => "new" }
end
end
end
This is the mongrel output when I create a new gas_reading:
Rendering gas_readings/new
Completed in 39ms (View: 11, DB: 7) | 200 OK
[http://localhost/gas_readings/new]
SQL (0.1ms) SET NAMES ‘utf8’
SQL (0.1ms) SET SQL_AUTO_IS_NULL=0
Processing GasReadingsController#create (for 127.0.0.1 at 2010-03-29
16:41:41) [POST]
Parameters: {“commit”=>“Create”,
“authenticity_token”=>“RSLUS1/MA86MXtnm2RnBIh9ksD4FAzSX2NBnu80eh8s=”,
“gas_reading”=>{“end_date”=>“03/26/2010”, “start_date”=>“03/02/2010”,
“value”=>“23423”}}
User Columns (1.9ms) SHOW FIELDS FROM users
User Load (1.0ms) SELECT * FROM users WHERE (users.id = 4)
LIMIT 1
this is gas reading before
start_date03/02/2010end_date03/26/2010value23423
User Load (0.3ms) SELECT * FROM users WHERE (users.id = 4)
GasReading Columns (2.2ms) SHOW FIELDS FROM gas_readings
this is gas reading after 23423 , 03/02/2010 , 03/26/2010
SQL (0.7ms) BEGIN
GasReading Create (0.3ms) INSERT INTO gas_readings (start_date,
end_date, updated_at, user_id, created_at) VALUES(NULL, NULL,
‘2010-03-29 15:41:41’, 4, ‘2010-03-29 15:41:41’)
SQL (26.2ms) COMMIT
Redirected to http://localhost:3000/gas_readings/9
Completed in 62ms (DB: 33) | 302 Found [http://localhost/gas_readings]
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