“.save” only inserts null values in database

Question

I\'m trying to make a RoR application for a Hospital so it has patients, doctors, offices, etc.

The problem I\'m having is that, at the patient \"Sign-up\", I\'m not

Answer 1

So in your controller your params are nil but you call .to_s and .to_s.to_i which results in an empty string "" and 0 (zero). You then save them into your database. A couple recommendations:

def pat_create

  pat = Patient.new(:name => params[:name], :pid =>params[:pid])
  pat.save

end

In addition to the uniqueness validation I would make sure your db column has a unique index on it to insure no duplicate patients.

class Patient < ActiveRecord::Base

  attr_accessible :name, :pid
  attr_accessor :name, :pid

  has_many :appointments
  validates :name, presence: true, 
                   length: { maximum: 50 }, 
                   format: {:with=> /^[a-zA-Z\s\D]+$/}
  validates :pid, presence: true,
                  numericality: { only_integer: true, 
                                  greater_than_or_equal_to: 100000, 
                                  less_than_or_equal_to: 9999999999 },
                  uniqueness: true
end

If you are getting valid values this will work and if not you will see why it is not.

Answer 2

Remove the following line in class Patient:

attr_accessor :name, :pID

What happened was that attr_accessor replaced the two database column attributes :name and :pID (which were automatically generated) with its own, resulting in two virtual attributes, :name and :pID.

Thus, the virtual attributes were being set and validated instead of the corresponding database attributes, which resulted in no errors yet null values in the database.

Answer 3

Can you show us how this method is called? Also are you sure that params[:name] and params[:pid].

You have used the column :pid and :pID, as below

pat = Patient.where(:pID => id).first
if pat == nil
  pat = Patient.new(:name => pName, :pID =>id)  # should use pat = Patient.new(:name => pName, :pid =>id)
  pat.save
end