Displaying 20 results from an estimated 10000 matches similar to: "unexpected behavior of before_validation"
2011 Jun 19
1
before before_validation callback
Hi,
I was looking around a bit and couldn''t find any callbacks that
executed before before_validation
The current problem with using before_validation is that it won''t fire
if I''m not using validations with #save(:validate => false) - which
makes sense. Before_save won''t suffice because I want these callbacks
to fire before validation on the occasions that
2006 Mar 24
1
Problems with before_validation
Hi all
My visitors can create party organisator profiles, and I want assign
them as the creators (the field creator_id in the organisators table
references a member in the members table).
To do that I tried it with before_validation:
def before_validation
creator = Member.find 1
end
Sadly, this does not work. The validation
validates_presence_of :creator_id
Still tells me, that
2006 Mar 25
0
[Sentry]-before_validation(model) not working for crypted-attribute?
I am still trying to get sentry working to encrypt a couple of
attributes in the model. One of them is a password field and the other
ssn#.
I have crypted_password and crypted_ssn in the db.
In addition, I also have validates_uniqueness_of :ssn
Here is the problem... I get the error
MysqlError: Unknown column ''ssn'' in ''where clause'': SELECT * FROM
students
2012 May 26
2
before_create is after_validatation :on => :create , when it should be before_validation :on => :create
In ActiveRecord''s callbacks, methods within a before_create callback
are called after the validation, but before the model is created.
This was an intentional design decision, but I think it was the wrong
one. What do you think?
When I think of before_create, I think of before_validation :foo, :on
=> :create, but, by default, before_create is synonymous with
after_validation :foo,
2006 Jun 15
1
callback object problem
I''m trying to create a separate class to do validation so that about 10
models can use the same date validation. I have tried to use the
example from the agile book but it''s not working. Here''s what I have:
app/models/date_callbacks.rb
class DateCallbacks
def before_validation(model)
if model.start_date > Date.today
model.errors.add(:start_date, "must
2009 Jun 24
2
At my wits end ! Controlling passed in negative values from a form
Hi,
I am trying to validate a numeric value passed in from a form, which
is saved in a MySQL db as decimal(9,2)
Now problem is I need to ensure people don''t enter a form value like -.
003. In my validations, I have a validates_numericality_of check being
done. Furthermore, in validate method, I have a check using an if
statement such as :
((an_object[n].nil? or an_object[n] < 0) and
2006 Jul 12
1
odd habtm behavior? or is it me?
Hello List,
I''m a bit spent on this problem, and my code might be whack. I seem to be
encountering a problem where the primary key on a join table is not being
resolved correctly. I will elaborate after some code bits. I am creating
the join table using migrations, and relevant model code is this:
class Post < ActiveRecord::Base
has_and_belongs_to_many :records
2006 Dec 11
1
Compute date during before_validation_on_create
Hello,
- the form posted by the user have a date field
- this date is begin_date, I need to compute end_date
- so, added callback before_validation_on_create
- in this method I do :
end_date = begin_date >> 12
- unfortunately, beeing in before_validation the actual self.begin_date
have not been type casted - It''s always a string
- unfortunately again, I can''t put this code
2006 May 24
1
Observer behavior differences between DEV and TEST environments ?
Hi all !
I''m having an issue and I can''t seem to make heads or tails of it.
I am attempting to add an observer to a model object. I created
app/models/greenback_transaction_observer.rb, inherited from
AR::Observer, defined methods, registered in config/environment.rb,
but things don''t work...
So, I took a step back and put in the following code:
class
2006 May 02
4
useful bit of code (hopefully)
Hi,
I often find myself using bits of code like this inside ActiveRecord,
perhaps it''s useful for others, or others can improve on it:
###########
# fix user input before validating it
before_validation :sanitize_input
# santize input before actual validation is called
# this uses the little methods defined below
def sanitize_input
trim %w(adres postcode woonplaats email naam
2006 Apr 27
3
Removing a default value for a foreign key with not null set
Hi all,
For various reasons I need to have foreign keys with not null constraints.
Eg:
create_table :people do |t|
t.column :name, :string
t.column :household_id, :integer, :null => false
end
create_table :households do |t|
t.column :name, :string
end
add_foreign_key_constraint :people, :household_id, :households, :id
So the people table has a foreign key into
2006 Apr 30
0
populating model attribute from one of many lists
I have a model named Project which contains a name attribute, and I
have a second model named Booking which has, among other things, a
date and a Project. (has_many :bookings, belongs_to :project).
When a user creates a new Booking, they have the option of using an
existing Project or creating a new Project. As an added complexity,
when choosing from existing Projects, they can either choose from
2005 Apr 04
0
Validation problem with active record: AssociationTypeMismatch
[Rails] Validation problems: ActiveRecord::AssociationTypeMismatch
Hi everyone, I''m starting on my first rails project and I have a
problem that I''m sure has a simple solution. I have two models, an
address model and a state model. The address belongs_to :state,
foreign_key=>"state" and validate_associated :state
I have new & edit controllers for address
2005 Apr 04
1
Validation problems: ActiveRecord::AssociationTypeMismatch
Hi everyone, I''m starting on my first rails project and I have a
problem that I''m sure has a simple solution. I have two models, an
address model and a state model. The address belongs_to :state,
foreign_key=>"state" and validate_associated :state
I have new & edit controllers for address which contain a drop down
list for the state choice. My list was
2006 Nov 10
3
Move variables from session to ActiveRecord?
Buildings have units. Units have rooms. Rooms have people. I can grab
building, room, and people IDs and store them in a session[:variable].
However, when creating a new unit, I need to give that
session[:building_id] to ActiveRecord for creation. I''m not sure
whether to use hidden fields or do it all in the model
''before_validation'' - in either case I
2008 Jan 14
2
simple syntax question (models, validation)
who can explain this to me?
def before_validation
logger.info url
url = "http://" << url if url[0..3]=="www."
end
the logger line correctly logs any URL that''s been submitted, let''s
say it''s "www.amazon.co.uk"
BUT Rails raises an exception on the next line, complaining about nil.
[] (obviously from the url[0..3] bit)
It works
2006 Jul 28
3
Forms: handle foreign keys (AssociationTypeMismatch)
Hi all
I tried and tried and tried, but I still fail in creating a form with
proper validation and stuff for foreign keys... So I''d really like to
get some help here.
I''m creating a booking site for DJ''s, and for every booking one can
choose one of different countries:
class Booking < ActiveRecord::Base
validates_presence_of :country_id
2006 Feb 13
0
Including a Module within a model
If I have a module with a callback in it:
module Sanitize
module PhoneNumber
def before_validation
self.phone.gsub!(/\D/, '''') if attribute_present?(''phone'')
end
end
module MobileNumber
def before_validation
self.mobile.gsub!(/\D/, '''') if attribute_present?(''mobile'')
end
end
end
2010 Feb 02
1
subset function unexpected behavior
I was surprised to see this unexpected behavior of subset in a for loop. I
looked in subset.data.frame and it seemed to me that both versions should
work, since the subset call should be evaluated in the global environment -
but perhaps I don't understand environments well enough. Can someone
enlighten me? In any case, this is a bit of a gotcha for naive users of
subset.
input.data <-
2008 Apr 17
1
Callback Problem: Why to use self.var= instead of @var=
Hi,
I''ve defined the following model:
class Eintrag < ActiveRecord::Base
before_validation :vali
protected
def vali
# self.feld1.reverse!
self.feld2 = self.feld1
end
end
Now I''m wondering why I have to write
self.feld2=self.feld1
and why
@feld2=@feld1
doesn''t work.
I''ve found the thread