Using less than or greater validation in ruby on rails - ruby-on-rails

Question

I have two models the first model is entry this is used with my controller entry to create a new request.. I need to validate range_days from entry is less than or equal to range from my second model empaccrl..But no matter what I do Still get an undefined method range...
My Entry Model
class Entry < ActiveRecord::Base
self.primary_key = 'id'
validates :indirect_id, presence: true, allow_blank: false
validates :leave_range, presence: true, allow_blank: false
validates :range_days, presence: true, allow_blank: false, length: { maximum: 2 }
# Really wish I could get this validation to work ..............
validates :range_days, :numericality => { :less_than_or_equal_to => :range }, :presence => true
belongs_to :empaccrl
attr_accessible :emp_id, :person_id, :emp_dept, :emp_no, :emp_first_name, :emp_last_name, :emp_mail_addr, :indirect_id, :mgr_no, :mgr_first_name, :mgr_last_name, :mgr_mail_addr, :leave_range, :employee_type, :seq_no, :range_days, :alt_mgr_name, :alt_mgr_addr, :alt_mgr_no
# This is for the validation
def range
empaccrl.range
end
end
My Empaccrl Model
class Empaccrl < ActiveRecord::Base
establish_connection :vdev
self.table_name = 'empaccrl'
belongs_to :entry
attr_accessor :range
end
My Entry Controller with create method and new
def new
#entry = Entry.new
respond_to do |format|
format.html# new.html.haml
format.xml { render :xml => #entry }
end
end
def create
params.permit!
#entry = Entry.new(params[:entry])
respond_to do |format|
if #entry.save
EntryMailer.submit_for_approval(#entry).deliver
format.html { redirect_to(entry_path( #entry ), :notice => 'Entry successfully created.') }
format.xml { render :xml => #entry, :status => :created, :location => #entry }
else
format.html { render :action => "new" }
format.xml { render :xml => #entry.errors, :status => :unprocessable_entity }
end
end
end
This is my entry table
ID NUMBER(38,0)
CREATED_AT DATE
UPDATED_AT DATE
EMP_ID VARCHAR2(255 BYTE)
EMP_NO VARCHAR2(255 BYTE)
EMP_FIRST_NAME VARCHAR2(255 BYTE)
EMP_LAST_NAME VARCHAR2(255 BYTE)
EMP_MAIL_ADDR VARCHAR2(255 BYTE)
INDIRECT_ID VARCHAR2(255 BYTE)
MGR_NO VARCHAR2(255 BYTE)
MGR_FIRST_NAME VARCHAR2(255 BYTE)
RANGE_DAYS NUMBER(38,0)
This is my Empaccrl table
PERSON_ID NUMBER(10,0)
IS_ACTIVE VARCHAR2(1 BYTE)
ACCRUAL_DATE DATE
RANGE NUMBER(10,0)
PROJECTED_ACCRUED NUMBER(12,5)
Any help is greatly appreciated my eyes are burning from staring at this for so long!!!!!

Answer 1

No way to do this using built-in validations. You need to write a custom one:
validates :range_days, :presence => true
validate :range_days_smaller_than_range, if: :range
private
def range_days_smaller_than_range
errors.add(:range_days, "LOL Nah! <Any error message or translation key here>") if range_days > range
end

Answer 2

I got it to work!!!!
This is how I got it to do what I wanted it to do thanks #BroiSatse for the help!
validate :range_days_smaller_than_range, if: :range
def range
range = Empaccrl.where("person_id = ? and is_active = ?", '14052', 'Y').pluck(:range).first
end
private
def range_days_smaller_than_range
errors.add(:range_days, "Sorry you don't have days for this request") if range_days > range
end
end