Create PetClinic Model

Model description:

There are seven tables in the model. The main entities are Pet, Owner, Vet and Visit.

Additional entities are Speciality, VetSpecialty and PetType. VetSpecialty is the associative class between Vet and Speciality entity.

According to the model, we can see that:

• Each Pet is of particular PetType.

• One Owner can have more Pets.

• Pet has to belong to one Owner.

• Pet has mode Visits.

• VetSpeciatlty represents Specialities of Vet.
  

In Step 1 we will create a PetClinic model with two entities: PetType and Speciality.

After saving a model, all necessary files will be generated automatically:

• Java project “model-petclinic-jpa” that is a Maven project with:

  • package com.codeless

  • two JPA classes: PetType.java and Speciality.java

  • HibernateConfigurator java

• application.context is updated

• the project added as a dependency in CodelessPlatform’s pom.xml

• project is added to a master pom.xml that is in your workspace root.

After the model is created and changes are saved, we will update our development database. DDL script is generated automatically.

Watch Step 1   (4' 17'')
Notes:

• As seen in the video, after creating a model, you should import it in your favorite IDE in this case Eclipse IDE.

• After any change in the model, you should rebuild changed model projects.

   

Adding entities: Vet and Owner

In this step we will add two more entities: Vet and Owner. Note how we will create unique constraints for Vet.

Notes:

• You don’t have to go to Eclipse and rebuild your projects, you can do that after step 3 when we finish with complete model. 

• You don’t have to synchronize changes with the database after each step, you can do that also after step 3. 

   

Create Entities: Pet, Visit and VetSpecialties

This step will show you how to create relationships. Note that “reverse” relations can be added with a single click, you just need to give it a name you want.

Watch Step 3 (3' 23'')

Notes:

• Make sure that all changes are synchronized with the database

• Stop the platform, go to your IDE and rebuild model-petclinic-jpa project. You can do this with maven clean and then maven install or you can simply run the “rebuild” task you created during installation.

• Make sure that all changes are synchronized with the database

• Stop the platform, go to your IDE and rebuild model-petclinic-jpa project. You can do this with maven clean and then maven install or you can simply run the “rebuild” task you created during installation.

• Note that reverse relations were created in entity VetSpecialty. That resulted in two new relations:       

   

Create PetClinic Application

In Step 4 we will create a PetClinic application. After saving the newly created application, all necessary files will be generated automatically:

• Java project “PetClinic” is a Maven project with:
  • two Java classes for translation purpose: PetClinicTranslator and PetClinicMessages
  • Project PetClinic is added as a dependency in CodelessPlatform’s pom.xml

Watch Step 4 (1' 27'')

Notes:

• Import PetClinic maven project in your IDE.
• Run task “rebuild” and start the platform to continue.
  • PetClinicTranslator is auto generated file and will not change after the first generation.
  • PetClinicMessages is auto generated each time you save a translation for application PetClinic in the Platform.

   

Create Simple Forms

In Step 5 we will create Speciality, PetType and Owner forms.

Watch Step 5 (3' 34'')

Notes:

• No need to go to your IDE and rebuild any more. You need to do this only if you are adding new application, change the model or add custom controller or business logic code. Creating forms and menus do not produce any code so you do not need to rebuild anything.

   

Create Application Menu

In Step 6 we will create an application menu with items to start forms that we have created so far.

Watch Step 6 (2' 15'')

Notes:

• You can translate each item if you write {TEXT_TO_TRANSLATE} and then press “Translate”

• If you do not put brackets around the text, it will be as is, you do not have to translate it.

• PET CLINIC menu is added to PetClinic application
  • Application PetClinic is added to a user

   

Adding some data

In Step 7 we will add some data to forms we have created so far.

Watch Step 7  (3' 04'')

   

Create association VetSpecialty

In step 8 we will show how to create an associative form that will act as a selection form with checkboxes.

Watch Step 8 (2' 42'')

   

Create Pet and Visit entities

In step 9 we will show how to create a Pet that will have Gallery view, Column renderer, owner with an image on lookup etc.

Watch Step 9 (6' 48'')

   

Create Checker View

In step 10 we will create a Checker view for associative class VetSpecialties

Watch Step 10 (2' 23'')