Add core model relationships

Author: peteryates

app/models/email_address.rb

@@ -13,4 +13,5 @@
 #  fk_rails_...  (teacher_id => teachers.id)
 #
 class EmailAddress < ApplicationRecord
+  belongs_to :teacher
 end

app/models/induction_period.rb

@@ -18,4 +18,7 @@
 #  fk_rails_...  (mentorship_id => mentorships.id)
 #
 class InductionPeriod < ApplicationRecord
+  belongs_to :mentorship
+  belongs_to :appropriate_body
+  belongs_to :induction_programme
 end

app/models/mentorship.rb

@@ -14,4 +14,9 @@
 #  fk_rails_...  (tenureship_id => tenureships.id)
 #
 class Mentorship < ApplicationRecord
+  belongs_to :tenureship
+  belongs_to :mentor, class_name: 'Teacher', foreign_key: 'teacher_id'
+  has_one :mentee, through: :tenureship, source: :teacher
+  has_many :induction_periods
+  has_many :induction_programmes, through: :induction_periods
 end

app/models/school.rb

@@ -13,4 +13,19 @@
 #  fk_rails_...  (parent_id => schools.id)
 #
 class School < ApplicationRecord
+  # naming could be better here, avoiding parent/children for obvious reasons
+  belongs_to :mat, class_name: 'School', foreign_key: 'parent_id', optional: true
+  has_many :schools, class_name: 'School', foreign_key: 'parent_id'
+  has_many :tenureships
+  has_many :teachers, through: :tenureships, source: :teacher
+
+  has_many :mentorships_as_mentee,
+           through: :tenureships,
+           source: :mentorships,
+           class_name: 'Mentorship'
+
+  has_many :mentorships_as_mentor,
+           through: :teachers,
+           source: :mentorships_as_mentor,
+           class_name: 'Mentorship'
 end

app/models/teacher.rb

@@ -9,4 +9,12 @@
 #  updated_at :datetime         not null
 #
 class Teacher < ApplicationRecord
+  has_many :email_addresses
+  has_many :tenureships
+
+  has_many :mentorships_as_mentor, class_name: 'Mentorship', foreign_key: 'teacher_id'
+  has_many :mentorships_as_mentee, class_name: 'Mentorship', through: :tenureships, source: :mentorships
+
+  has_many :mentors, through: :mentorships_as_mentee, source: :mentor
+  has_many :mentees, through: :mentorships_as_mentor, source: :mentee
 end

app/models/tenureship.rb

@@ -16,4 +16,7 @@
 #  fk_rails_...  (teacher_id => teachers.id)
 #
 class Tenureship < ApplicationRecord
+  belongs_to :teacher
+  belongs_to :school
+  has_many :mentorships
 end