Laravel Starter - PHP User Group (Myanmar)

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Quick start: Creating your first web application Laravel Starter In this section we'll be building a user administration tool. User admins are one of the most common components to be found in web applications. They also use a number of important systems that we want to explore with Laravel including database interactions, forms, and routing. We'll be storing and retrieving records from a database so now it would be a good time for you to create a database for this application. Keep the database name, user, and password handy. Let's get started. Step 1 – Database configuration Armed with our database name, user, and password, we can now tell Laravel how to connect to our database. Open the file application/config/database.php and scan the contents. You'll find example configurations for each database driver. Determine which driver you're going to use from the available options (sqlite, mysql, pgsql, and sqlserv) and enter the name of the driver as the default database connection. Then, in the Connections section add your database name, user, and password. Ok! We're just where we want to be. Let's get started by creating the users table. Step 2 – Creating the users table using migrations You might typically create the users table with a tool like phpMyAdmin or Navicat. But, Laravel provides a fancy migrations system for us and we should use it because it improves our workflow and reduces deployment bugs. Migrations are version control for your schema modifications. Migrations reduce the amount of headache that we face by requiring us to only define the schema alteration once. Afterwards, we can deploy our changes to any number of systems without the potential for human error. Migrations are especially useful for projects in which you're collaborating with others. Like using source control, migrations are always a good idea. Developers who are new to migrations might believe them unnecessary or believe that they add too much additional work at first. But, stick with it and their value will become quickly apparent. Let's start by creating our migration template with Laravel's command-line tool Artisan. 7
Laravel Starter In order to use Artisan, we will need to add the directory which contains the PHP binary to our PATH environment variable. This lets us execute the PHP binary from anywhere, as the system will know where to find it. You can test this by running the following command from your command-line terminal: # php -v You should see a nice readout telling you which version of PHP you're running. If you find that your command-line interface doesn't know where the PHP binary is, you'll need to update your system's PATH. You can modify your PATH variable on OS X and Linux with the following command line: # export PATH=/path/to/php/binary:$PATH Windows users will need to right-click on Computer from the start menu and click on Properties. Click on Advanced system settings, and then click on Environment Variables. Here you can find the system variable PATH and add the directory that contains your PHP binary. Now that the PHP binary is in our path, let's navigate to our project folder. Now we can go ahead and install our migrations database table. Execute the following command: # php artisan migrate:install You should see the message, Migration table created successfully. If you get errors, verify that your database connection information is correct. Next, let's create a new migration template in our application/migrations folder. # php artisan migrate:makecreate_users_table The migration files are formatted with the year, month, day, time, and the text that you added that enable it to be identified by a human, in this case create_users_table. Mine looks like 2012_08_16_112327_create_users_table.php. The structure of the filename is important as it helps Laravel to understand the order in which it should run the migrations. By using a convention for naming your migrations, you'll be helping your team to better understand your work (and vice-versa). An example convention might consist of entries like create_users_table, add_fields_to_users_table, or rename_blog_posts_ table_to_posts. The migrations file contains a single class with the human readable name that we entered before. The class has two methods, up() and down(). When migrations are run, Laravel reads in each migration file one by one and runs its up() method. If you feel that a mistake has been made, you can rollback migrations. When rolling back a change, Laravel runs the down() method. The up() method is for making your desired changes to the database. The down() method is for reverting your changes. 8
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