Return error message if ID exists

Author: jamiebenstead

app/models/school.rb

@@ -17,17 +17,17 @@ class School < ApplicationRecord
   validates :municipality, presence: true
   validates :country_code, presence: true, inclusion: { in: ISO3166::Country.codes }
   validates :reference,
-            uniqueness: { conditions: -> { where(rejected_at: nil) }, case_sensitive: false, allow_blank: true },
+            uniqueness: { conditions: -> { where(rejected_at: nil) }, case_sensitive: false, allow_blank: true, message: I18n.t('validations.school.reference_urn_exists') },
             format: { with: /\A\d{5,6}\z/, allow_nil: true, message: I18n.t('validations.school.reference') },
             if: :united_kingdom?
   validates :district_nces_id,
-            uniqueness: { conditions: -> { where(rejected_at: nil) }, case_sensitive: false, allow_blank: true },
+            uniqueness: { conditions: -> { where(rejected_at: nil) }, case_sensitive: false, allow_blank: true, message: I18n.t('validations.school.district_nces_id_exists') },
             format: { with: /\A\d{12}\z/, allow_nil: true, message: I18n.t('validations.school.district_nces_id') },
             presence: true,
             if: :united_states?
   validates :district_name, presence: true, if: :united_states?
   validates :school_roll_number,
-            uniqueness: { conditions: -> { where(rejected_at: nil) }, case_sensitive: false, allow_blank: true },
+            uniqueness: { conditions: -> { where(rejected_at: nil) }, case_sensitive: false, allow_blank: true, message: I18n.t('validations.school.school_roll_number_exists') },
             format: { with: /\A[0-9]+[A-Z]+\z/, allow_nil: true, message: I18n.t('validations.school.school_roll_number') },
             presence: true,
             if: :ireland?

config/locales/en.yml

@@ -16,8 +16,11 @@ en:
     school:
       website: "must be a valid URL"
       reference: "must be 5-6 digits (e.g., 100000)"
+      reference_urn_exists: "URN number already exists"
       district_nces_id: "must be 12 digits (e.g., 010000000001)"
+      district_nces_id_exists: "NCES ID already exists"
       school_roll_number: "must be numbers followed by letters (e.g., 01572D)"
+      school_roll_number_exists: "School roll number already exists"
     invitation:
       email_address: "'%<value>s' is invalid"
   activerecord: