changes on the form and people controller to display error messages

app/controllers/people_controller.rb

@@ -9,10 +9,12 @@ def new
   end
 
   def create
-    if Person.create(person_attributes)
+    @person = Person.new(person_attributes)
+
+    if @person.save
       redirect_to people_path, notice: 'Successfully created entry'
     else
-      render :create, alert: 'Unsuccessfully created entry'
+      render :new, status: :unprocessable_entity
     end
   end
 
@@ -21,6 +23,5 @@ def create
   def person_attributes
     params.require(:person).permit(:name, :email, :phone_number)
   end
-
 end
 

app/models/person.rb

@@ -12,6 +12,7 @@
 #
 
 class Person < ApplicationRecord
-
   belongs_to :company, optional: true
+
+  validates :name, :phone_number, :email, presence: true
 end

app/views/people/_form.html.slim

@@ -0,0 +1,19 @@
+= form_for person, class: 'row' do |f|
+  - if person.errors.any?
+    .alert.alert-danger
+      h4 There were errors with your submission:
+      ul
+        - person.errors.full_messages.each do |msg|
+          li = msg
+
+  .col-auto
+    = f.label :name, class: 'form-label'
+    = f.text_field :name, class: 'form-control'
+  .col-auto
+    = f.label :phone_number, class: 'form-label'
+    = f.text_field :phone_number, class: 'form-control'
+  .col-auto
+    = f.label :email, class: 'form-label'
+    = f.text_field :email, class: 'form-control'
+  .col-auto.mt-4
+    = f.submit person.new_record? ? 'Create Person' : 'Update Person', class: 'btn btn-primary'

app/views/people/new.html.slim

@@ -1,14 +1,2 @@
 h2 Creating an entry
-
-= form_for @person, class: 'row' do |f|
-  .col-auto
-    = f.label :name, class: 'form-label'
-    = f.text_field :name, class: 'form-control'
-  .col-auto
-    = f.label :phone_number, class: 'form-label'
-    = f.text_field :phone_number, class: 'form-control'
-  .col-auto
-    = f.label :email, class: 'form-label'
-    = f.text_field :email, class: 'form-control'
-  .col-auto.mt-4
-    = f.submit class: 'btn btn-primary'
+= render 'form', person: @person