add the institutions controller

app/controllers/institutions_controller.rb

+class InstitutionsController < ApplicationController
+  before_action :set_institution, only: [:show, :edit, :update, :destroy, :like]
+
+  # GET /institutions
+  # GET /institutions.json
+  def index
+    @institutions = institution_repository.all
+  end
+
+  # GET /institutions/1
+  # GET /institutions/1.json
+  def show
+  end
+
+  # GET /institutions/new
+  def new
+    @institution = Institution.new
+  end
+
+  # GET /institutions/1/edit
+  def edit
+  end
+
+  # POST /institutions
+  # POST /institutions.json
+  def create
+    @institution = Institution.new(institution_params)
+
+    respond_to do |format|
+      if institution_repository.save @institution
+        format.html { redirect_to @institution, notice: 'Institution was successfully created.' }
+      else
+        format.html { render :new }
+      end
+    end
+  end
+
+  # PATCH/PUT /institutions/1
+  # PATCH/PUT /institutions/1.json
+  def update
+    respond_to do |format|
+      if institution_repository.update(institution_params)
+        format.html { redirect_to @learning_object, notice: 'Institution was successfully updated.' }
+      else
+        format.html { render :edit }
+      end
+    end
+  end
+
+  # DELETE /institutions/1
+  # DELETE /institutions/1.json
+  def destroy
+    institution_repository.destroy @institution
+
+    respond_to do |format|
+      format.html { redirect_to institutions_url, notice: 'Learning object was successfully destroyed.' }
+    end
+  end
+
+
+
+  private
+
+  def set_institution
+    @institution = institution_repository.find("##{params[:id]}")
+  end
+
+  def institution_repository
+    repository.for(:institution)
+  end
+
+  # Never trust parameters from the scary internet, only allow the white list through.
+  def institution_params
+    params[:institution_object]
+  end
+
+end