Schema building with foreign keys - laravel-4

Question

I was wondering if someone could show me how to write the following SQL in Laravel 4Schema Builder`?
CREATE TABLE `conversation_reply` (
`cr_id` int(11) NOT NULL PRIMARY KEY AUTO_INCREMENT,
`reply` text,
`user_id_fk` int(11) NOT NULL,
`ip` varchar(30) NOT NULL,
`time` int(11) NOT NULL,
`c_id_fk` int(11) NOT NULL,
FOREIGN KEY (user_id_fk) REFERENCES users(user_id),
FOREIGN KEY (c_id_fk) REFERENCES conversation(c_id)
);

Answer 1

If I understand what you're asking, this should be close;
Schema::table('conversation_reply', function($table)
{
$table->increments('cr_id');
$table->text('reply')->nullable();
$table->foreign('user_id_fk')->references('user_id')->on('users');
$table->string('ip', 30);
$table->integer('time');
$table->foreign('c_id_fk')->references('c_id')->on('conversation');
});

Answer 2

Do Following:
Below Schema will go inside schema-migrations file under public function up()
//Create ** category table **
Schema:Create ('category',function ($table)){
//Relation: category table id used as FK -> to -> product table category_id
$table->increments('category_id');
//category name
$table->string('category_name',40)->unique();
//time staps: created,Updated
$table->timestamps();
}
Than,Inside product schema:
//Create ** product table **
Schema::create('products', function ($table){
//product id
$table->increments('product_id');
//product name
$table->string('p_name')->unique();
//product description
$table->text('p_description');
//created_at and updated_at column
$table->timestamps();
//Foregine Key
$table->integer('category_id_fk')->unsigned();
//Foreign Key link to category table
$table->foreign('category_id_fk')->references('category_id')->on('category');
}