Creating a miniature module

For the purpose of this chapter, we will create a miniature module called Foggyline_Office.

The module will have two entities defined as follows:

• Department: a simple model with the following fields:
  • entity_id: primary key
  • name: name of department, string value
• Employee: an EAV model with the following fields and attributes:
  • Fields:
    • entity_id: primary key
    • department_id: foreign key, pointing to Department.entity_id
    • email: unique e-mail of an employee, string value
    • first_name: first name of an employee, string value
    • last_name: last name of an employee, string value
  • Attributes:
    • service_years: employee's years of service, integer value
    • dob: employee's date of birth, date-time value
    • salary – monthly salary, decimal value
    • vat_number: VAT number, (short) string value
    • note: possible note on employee, (long) string value

Every module starts with the registration.php and module.xml files. For the purpose of our chapter module, let's create the app/code/Foggyline...