104 lines
3.2 KiB
Ruby
104 lines
3.2 KiB
Ruby
class StudentsController < ApplicationController
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# set_institution will try to load an institution when institution_id is present
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before_action :set_institution
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# set_student will safely find a student either scoped to @institution or globally
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before_action :set_student, only: %i[ show edit update destroy ]
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# ensure nested behaviour for new/create (these expect an institution). Allow index to show all students.
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before_action :ensure_institution_for_nested_actions, only: %i[new create]
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# GET /students or /students.json
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def index
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if @institution
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@students = @institution.students
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else
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# show all students when not nested
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@students = Student.all
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end
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end
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# GET /students/1 or /students/1.json
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def show
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end
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# GET /students/new
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def new
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@student = @institution.students.build
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end
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# GET /students/1/edit
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def edit
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end
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# POST /students or /students.json
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# def create
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# @student = @institution.students.build(student_params)
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# if @student.save
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# redirect_to institution_students_path(@institution), notice: 'Student was successfully created.'
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# else
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# render :new, status: :unprocessable_entity
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# end
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# end
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def create
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@student = @institution.students.new(student_params)
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respond_to do |format|
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if @student.save
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format.html { redirect_to institution_students_path(@institution), notice: 'Student was successfully created.' }
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format.js # renders create.js.erb
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else
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format.html { render :new, status: :unprocessable_entity }
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format.js { render :error }
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end
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end
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end
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# PATCH/PUT /students/1 or /students/1.json
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def update
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if @student.update(student_params)
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redirect_to institution_students_path(@institution), notice: 'Student was successfully updated.'
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else
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render :edit, status: :unprocessable_entity
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end
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end
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# DELETE /students/1 or /students/1.json
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def destroy
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@student.destroy
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redirect_to institution_students_path(@institution), notice: 'Student was successfully destroyed.'
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end
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private
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# Use callbacks to share common setup or constraints between actions.
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def set_institution
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return unless params[:institution_id].present?
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@institution = Institution.find(params[:institution_id])
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rescue ActiveRecord::RecordNotFound
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# Let other parts handle missing institution (redirects in actions)
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@institution = nil
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end
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def set_student
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if @institution.present?
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@student = @institution.students.find(params[:id])
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else
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# fallback to global lookup when not nested
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@student = Student.find(params[:id]) if params[:id].present?
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@institution = @student.institution if @student.present?
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end
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rescue ActiveRecord::RecordNotFound
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# will raise in actions if record missing
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raise
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end
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def ensure_institution_for_nested_actions
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return if @institution.present?
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redirect_to institutions_path, alert: 'Please select an Institution first.'
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end
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# Only allow a list of trusted parameters through.
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def student_params
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params.require(:student).permit(:first_name, :last_name, :email, :institution_id, :place, :phone_number, :age, :photo)
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end
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end
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