Model View Controller

This document will give you an Overview of Zigmoyd MVC. A Zigmoyd Application is made of Three Main Components and lots of other Sub Components. these are Model, View and Controller. View is the Presentation Layer that contains several HTML tags or other presentation components with embeded PHP Codes in it. Controller holds the Business Logic of the appplication. and Model works like a Simple Configyuration file that Binds Database abstraction layers(ORM Classes) with the Controller.

See also:

see MVC Explained More Detailed Information on MVC

View The Presentation layer

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See more details on view Here

A View is a Simple HTML Page just like the bellow one

  <div id="studentInfoBox" class="infoBox">
    <span>Name: </span> <?= $name ?>
    <span>Department: </span><?= $deptName ?>
  </div>

Say Its stored as a file Called stdInfo.view.php .
Hope You noticed the Presece of embedded PHP Codes <?= $name ?> and <?= $deptName ?>br />which is equivalent to <? echo $name ?> and <? echo $deptName ?> respectively. (Using PHP Short Tags). Here this File is called a View which is just a Presentation Layer not much Business logic on it.

Controller The Application Logic

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See more details on controller Here

Now one more Question is peeping in your mind that you can understand that the presentation layer is showing the name and department Name in HTML tags. But from where the variable(s) are Comming ? This is the Job of Controller it handles the business logics which is just a Class that extends the Project level Controller Class.

  <?php
  //homeController Class ultimately inherits zigControler Class
  class stdInfoController extends homeController{
    public function main(){
      $this->name = "Student Name";//Assigning a member variable called called name
      $this->deptName = "Computer Science";//Assigning another member variable
    }
  }
  ?>

Here the two member variables name and deptname becomes local variables in the view when this controller renders the view.

Model

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See more details on model Here

In the above example we have just assigned simple values to the member variables name and deptInfo. but we can do more

in Practical situation you would like to do something like

  $this->name = getNameFromDataBase()// or
  $this->name = getNameById(1)// or similer thing

e.g. access value of name and deptInfo from Database in Zigmoyd Way you will do$this->name = $this->db->Student->getNameById(1); assuming there is a table called student and you want to fetch the value of Field `name` where `id` = 1 Isn't it simpler enough. $this->db->TableName->getColBySearch(Value)

Object Relation Maping

See also:

See more details on Object-relational mapping. Here

In Zigmoyd Models acts as a Simple Configuration file like this.

  <?php
  class stdInfoModel extends manualModel{
          public function attachOrmMap(){
                  parent::attachOrmMap('StudentOrm');//attach an Orm Map on file StudentOrm.orm.map.php
                  //you can attach More ORM Maps in the Same way
          }
  }
  ?>

a Model Attach's Orm Classes (Which is built by reading an ORM Map) with the Controller. and a Map Maps Tables of databases like this (schoolOrm.orm.map.php).

  connection as schoolConn{
  }
  table std as Student{
      readonly id as Id{
      }
      writable name as name{
          required:       You must enter a name of the Student
          string:         name of the student must be a String
      }
      writable dptName as DeptName{
          required:       Department Name must not be left Blank
          string:         Department Name Must be a Valid string
      }
  }

See also:

See more details on Orm Maps Here

Connection File.

First it Specifies which Connection File to use schoolCon.con.ini.php (which is shown bellow)

  driver = "mysql"
  database = "manual"
  host = "localhost"
  user = "root"
  psw = "123456"
  port = ""

You can provide alias names for Tables/Columns here you will access std table as Student (you dont ever need to remember the real name just remember the alias name that you haev choosen). you can also mark columns as readonly or writable. you can add validation rules that will be checked everytime something get written to that table through the ORM Layer. So No backdoor of invalid Data Entry even if you forget to do form validation on tables you can have multiple Orm Maps as well as Multiple Connection Files. You just need to attach these Orm Maps with your Controller through Model. when you specify the Connection File name the Connection is automatically bound with all tables of that Orm Map. Zigmoyd parces this ORM Map file once and generates an ORM file that conrtains ORM Class(s) which is actually used in for that ORM map.

See also:

See more details on Orm Class(s) Here