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Razer FRAMEWORK

• Razer is a PHP Framework that provides a convenient MVC (Model, View Controller) structure for systems development.
• Do you want something small but yet powerfull, this is your best choice

  Table of contents

  Database

  1. Insert
  2. Update
  3. Delete
  4. Truncate
  5. Affected Rows
  6. Fetch Data
  7. Join Tables
  8. Eloquent Models
  9. Migrations

     HTTP

  10. Request
  11. Response
  12. Redirect
  13. Routing

      Insert one / Many

      // For many, supply an array of arrays of data. DB::table('table_name')->save($data);

Last Insert Id

DB::lastId();

Update a record

DB::table('table_name')->where('id', 1)->update($data);

Delete a record

DB::table('table_name')->where('id', 1)->delete();

Truncate the whole table

DB::table('table_name')->delete();

Affected Rows

DB::affectedRows();

Fetch all

DB::table('table_name')->get(); // returns all columns

Fetch specific columns

$columns = 'column1, column2, column3 columnn' //as a string

OR

$columns = ['column1', 'column2', 'column3', 'columnn'] // as an array DB::table('table_name')->get($columns);

Fetch all columns with a condition

DB::table('table_name')->where('id', 1)->get();

Fetch all columns with multiple conditions

// multiple call to the where method creates WHERE AND AND AND ... // call orWhere to and an OR DB::table('table_name')->where('id', 1) ->where('age', 20 , '>')->where('gender', 'Male')->get();

Fetch one row with a condition

DB::table('table_name')->row()->where('id', 1)->get();

OR

DB::table('table_name')->find(1); // default column name is 'id'

Fetch one value

DB::table('table_name')->where('id', 1)->value();

Count number of rows

DB::table('table_name')->where('id', 1)->count(); DB::table('table_name')->count(); // all rows without a condition

Max / Min / Average value

DB::table('table_name')->where('id', 1)->max(); DB::table('table_name')->where('id', 1)->min(); DB::table('table_name')->where('id', 1)->avg();

Select distict values

DB::table('table_name')->distinct()->get(); // supply columns if not all // distinct with a condition DB::table('table_name')->distinct()->where('id', 1)->get();

Join tables

DB::table('table_name')->join('table2', 'table1.primary', 'table2.foregin')->get();

// call the join method multiple times to join mutliple tables using INNER JOIN. Other options of join methods include leftJoin(), rightJoin,() unionJoin()

Select with a Between clause

DB::table('table_name')->between('age', 20, 25)->get();

Select data for pagenation

DB::table('table_name')->range(1, 25)->get();

Check if the record exists

DB::table('table_name')->where('id', 1)->exits(); // retuns true if exists

Check if the record does not exist

DB::table('table_name')->where('id', 1)->doesNotExist(); // oposite of exist

Use a different database before querying

Database::switchTo('database_name'); // start querying from here

Use a different database when querying

DB::table('table_name')->use('database_name', 'table')->get();

Eloquent Models

• You can extend the Model class to you have you model called on its corresponding table name.
• The Model name should be singular and the table name in plural form
• The Eloquent model will convert your model name from singular to plural before querying the model objects.

  Insert

  $interns = new Intern($data); $interns->save();

  Affected Rows

  $interns->affectedRows();

  Last Insert Id

  $interns->lastId();

Magic assignment for inserting

$interns = new Intern(); $interns->name = "Godwin"; $interns->age = 20; $inters->save();

Update a model

Intern::find(1)->update($data);

Delete a resource

Intern::find(5)->delete();

Fecth all

Intern::all(); // same as DB::table('interns')->get();

Fetch all with a condition

Intern::where('id', 1)->get(); // same DB::table('interns')->where('id', 1)->get();

Fetch one

Intern::find(1);

Join models

Intern::with('course')->get(); // this will assume that the interns and courses table use the Id column as its primary key, forming INNER JOIN courses ON interns.course_id = courses.id

Join using the query builder

Interns::with('course')->join('supervisor', 'interns.supervisor_id', 'supervisor.id')->get();

Execute a custom query

DB::query('SELETE * FROM interns WHERE age > ?')->bindings([20])->get();

• Only queries with bindings are executed with the query method

Migrations

Create Database: | php manage make:db if the database name is not specified in the .env configurations, use php manage make:db dbname

Make Migration: | php manage make:migration create_migration_name This will create a migrations file under database/migrations directory. (tables names should be in a plural form)

RunAll Migrations: | php manage migrate This will run all migrations

Migration a specific file: | php manage migrate --file=filename This will run migations for a single file. (do not put the file extension)

Group Migrations into 1 sql file | php manage migrate:group All migration files will be grouped into one sql file

Run grouped migration: | php mange migrate:group --run This will run grouped migrations

Run Migartion modifications | php manage migrate:modifiy This will run migration modifications

List Migrations: | php manage migrate:list Lists all run migrations

Drop Migrations: | php manage migrate:rollback Rolls back migrations

Drop and re-run migrations: | php manage migrate:refresh Rools back and re-runs migrations

Show Migration logs/errors: | php manage migrate:log Logs Migrations errors

Clear Migration logs/errors: | php manage migrate:log --clear Clears migrations errors

Controllers and Models

Case; All Controllers and Models should use CamelCase and should be in singular form

Make Controller: | php manage make:controller ControllerName

• //in singular Will create a controller under app/Controller/

• The resource controller is created with methods, index, create, store, show, edit, update, and destroy

  Make a Resource Controller: | php manage make:controller ControllerName --resource

• // Creates a resource controller with CRUD methods

  Make Model: | php manage make:model ModelName

• // in singular Creates a model under app/Models

  Make Model and its migration: | php manage make:model -M ModelName

• // in singular

Template

Clear Cache: | php manage cache:clear

• For more information or inquiries, please call
• +256 754438448 OR
• Email [email protected]

Requests

• All methods that receive data through an HTTP POST request should have a $request paramater

• HTTP POST

  public function saveUser(Request $request) { $name = $request->post('name'); // get the value of name sent through an HTTP POST echo $name; }

// OR public function saveUser(Request $request) { $name = $request->name; //dynamically assigned properties the Request Class echo $name; }

// OR public function saveUser(Request $request) { $name = $request->body->name; //dynamically assigned properties the Request Class echo $name; }

• HTTP GET

  public function saveUser(Request $request) { $name = $request->get('name'); // get the value of name sent through an HTTP GET echo $name; }

// OR public function saveUser(Request $request) { $name = $request->name; echo $name; }

// OR public function saveUser(Request $request) { $name = $request->params->name; echo $name; }

Response

The response class has 2 methods, ie send and json. Send() send a plain text response while json send a json formated respeonse.

• Both methods have 2 parameters
  1. status --> http status code. Supported status codes are 200,202,302, 400, 401, 402, 403, 404, 408, 422, 500, 502
  2. Message --> text / json reponse to send.

• HTTP Plain text response

public function login(Request $request) { $email = $request->post('email'); return response()->send(200, $email); }

• HTTP JSON response

  public function login(Request $request) { $email = $request->post('email'); return response()->json(200, $email); // can be received through the message property }

  Redirect

  redirect('user/dashboard');

• Redirect back redirect()->back();

  Routes

• The Routes class has 6 methods, get, post, group, except, name. and resource

• GET

• The get and post methods takes 2 arguements, $url (the url to go to) and $callback, an array of controller name and its method
• Simple get route Route::get('user/profile', [UserController::class, 'userProfile']);

• POST

• Simple get route Route::post('user/profile', [UserController::class, 'userProfile']);

• GROUP

• Takes in 2 arguments, $prefix (array), $callback (closure)
• Route::group(['prefix' => 'admin', function(){ Route::get('/dashboard', [AdminController::class, 'index']); }); in the template ` <a href='{{ url('admin/dashboard') }}'>Dashboard

• Resource

• This Route method is used to create routes for resource controllers
• Route::resource('products', ProductController::class); // products is the prefix of the route
• The above creates the following routes
• /products (GET)
• /products (PUT)
• /products/create (GET)
• /products/product_id (GET)
• /products/product_id/edit (GET)
• /products/product_id (DELETE)
• /products/store (POST)

• Except

• You can call the except method to ignore the specified class methods when creating routes Route::resource('products', ProductController::class)->except(['destroy']);

• name

• On top of get and post methods, you can call the name method and register a short route name to use. This name must be used within the route method
• In routes Route::post('user/profile', [UserController::class, 'userProfile'])->name('user.p');
• In the template <a href='{{ route('user.p') }}'>Dashboard</a> // takes you to user/profile

  End