Database Repository / PHP Repository / Laravel Repository

Installation

Use the following command to add this package to the composer development requirement.

composer require eghamat24/database-repository --dev 

Setup Laravel Repository

Then run the following command in the console to publish the necessary assets in your project directory.

php artisan vendor:publish --tag=database-repository-config

Setup Lumen Repository

Navigate to app.php in bootstrap folder and add the following line after service providers registrations:

// snip
if ($app->environment('local', 'testing')) {
    $app->register(Eghamat24\DatabaseRepository\DatabaseRepositoryServiceProvider::class);
}
// snip

Copy repository.php to the project config folder located at the project root.

Note: Make sure to run composer dump-autoload after these changes.

Usage

To use this package easily, you can run the following command. It will create all the required components such as Entity, IRepository, Repository, MySqlRepository, RedisRepository, Resource, and Factory for the users table.

php artisan repository:make-all --table_names=users --strategy_name=QueryCacheStrategy

List of artisan commands:

Command	Inputs	Options	Description
repository:make-entity	table_name	-f, -d, -k, -g	Create new Entity
repository:make-enum	table_name	-f, -d, -g	Create new Enum
repository:make-factory	table_name	-f, -d, -g	Create new Factory
repository:make-resource	table_name	-f, -d, -k, -g	Create new Resource
repository:make-interface-repository	table_name	-f, -d, -k, -g	Create new Repository Interface
repository:make-repository	table_name, selected_db(optional)	-f, -d, -k, -g	Create new Base Repository
repository:make-mysql-repository	table_name	-f, -d, -k, -g	Create new MySql Repository class
repository:make-redis-repository	table_name	-f, -d, -k, -g	Create new Redis Repository class
repository:make-all	--table_names=table_names(optional) --selected_db=database(optional)	-a, -f, -d, -k, -g	Run all of the above commands

Options Explanation

• -f|--force: Force commands to override existing files.
• -d|--delete: Delete already created files.
• -k|--foreign-keys: Try to detect foreign keys of a table.
• -g|--add-to-git: Add created files to the git repository.
• -a|--all-tables: Use all existing tables.
• --table_names=: Add table names, separate names with comma.
• --selected_db= : Use between Mysql,Redis, If it does not send, the value will return from config/repository.php
• --strategy_name= : add a trait to your Redis repository based on the strategy you choose

Example 1. Create a new Entity for a table named 'users'.

php artisan repository:make-entity users

Example 2. Create all necessary classes for two tables named 'users' and 'customers' with an enabled foreign key option.

php artisan repository:make-all --table_names=users,customers -k

Example 3. Create all necessary classes for all tables with an enabled foreign key option(this may be used for new projects).

php artisan repository:make-all -a -k

Cache Strategy

We created some strategies for caching data, based on the number of records and change frequency

SingleKeyCacheStrategy

SingleKeyCacheStrategy is a good choice for tables with very few rows, such as less than 50 records. This strategy creates one cache key and stores all the data on it. Then, when the app queries data, it loops through the data and returns the result.

This strategy has one cache key and clears all the cached data whenever there is a change. This ensures that the data is always updated and valid.

QueryCacheStrategy

QueryCacheStrategy is suitable for tables that have low change frequency and not too many records. For example, if the table has less than 10,000 rows or if it has more than that but the queries are not very unique and there are similar queries, this strategy works well.

This strategy assigns a tag to each cache of the repository and clears all the cached data whenever there is a change. This ensures that the data is always updated and valid.

TemporaryCacheStrategy

TemporaryCacheStrategy is useful when we have a large or diverse amount of data and the data user can tolerate some delay in the updates. We cache every request and delay the changes that are not critical to be reflected in real time. For example, if we have a post and we edit its content, we can cache the old version until the cache expires. We set the cache expiration time for each data item based on the maximum delay the user can accept. This way, we use this strategy to cache data temporarily.

ClearableTemporaryCacheStrategy

Sometimes, we need to clear the data from a temporary cache when some critical changes occur. ClearableTemporaryCacheStrategy is suitable for these situations.

php artisan repository:make-all --table_names=users --strategy_name=QueryCacheStrategy