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Package utils.patcher
Short Description A patch system designed for Mouf than enables developers to know what patch has been run and what needs to be run on its environment. Very useful for database patches.
License MIT
Homepage https://mouf-php.com/mouf/utils.patcher
Informations about the package utils.patcher
Mouf's patching system
This package is a patch system designed for Mouf than enables developers to know what patch has been run and what needs to be run on its environment. If you are working with a team or with many environment, this is very useful to know which database patches have been applied or not in an environment.
Video tutorial
Installing the patch service
Installation is done via composer. Here is a typical composer.json file:
As you can see, we are installing two packages here.
- mouf/utils.patcher contains the patch service. The patch service can be used to install any kinds of patches, but does not contain any patches implementation. This is why we need the second packages.
- mouf/database.patcher adds an easy way to create database patches (the most common use of the patch system).
Using the patch service (graphical user interface)
Once the patch service is installed, you will notice there is a new menu in Mouf UI.
Using the Utils > Patches management menu, you can access the patches list or create new database patches.
Let's have a quick look at the paches list.
In this list, you can view all the patches that have been defined. Using one big button, you can easily apply all the patches that needs to be applied. This is really the only button you should ever touch on that screen, unless you are playing with advanced features like database replication, etc...
If you need a more fine-tuned approach, you can apply each patch one by one. You can also skip the patch if you prefer to run it yourself or if you know it has already been applied. Finally, you will notice that some patches can be reverted.
Using the patch service (command line interface)
You can also apply patches using the Mouf console. This is especially useful for deployments in continuous integration environments or on a production server.
Creating/Editing a database patch
You have 2 options to edit your database patches.
- Option 1: generate a SQL patch (you use SQL to alter your database)
- Option 2: generate a migration PHP class (you use PHP class to alter your database)
Using SQL patches
You can create a new SQL database patch using the Utils > Patches management > Register a SQL patch menu.
As you can see, you need to provide a unique patch name. You can (and you should) add a comment that will help you and others remember what this patch is doing. Finally, you will add the SQL of the patch.
You can choose what to do when you save the patch. You have 3 options:
- Most often, it is likely than when you save the patch, you already applied it in your development environment. In this case, you should skip the patch (there is no point in applying this patch again).
- If you haven't applied the patch yet, you can choose to save and apply the patch.
- Finally, you can also choose to save, but do not apply the patch yet. In this case, the patch will be in Awating state.
Advanced options
There are a number of advanced options. These will allow you to:
- Choose the file saving the patch (the SQL of the patch is stored in its own file, usually in the database/up directory.
- Set up a reverse patch that can be used to cancel/revert your patch.
Using PHP migration classes
You can create a new PHP migration class using the Utils > Patches management > Register a SQL patch menu.
There are really 2 kinds of migration patches:
- the patches that edit your database model
- the patches that edit your data
You should choose which kind of patch you are creating in the UI.
The UI will generate a PHP file for you containing your class.
You can then use the power of Doctrine DBAL to write your patch.
Class generated for altering a database model
Class generated for altering data
Patch type
Whether you create a SQL patch or a PHP migration class, you can select a patch "type".
By default, the package comes with 2 bundled types:
- default: for patches that should always be applied (like patches modifying the database model)
- test_data: for patches that should be applied conditionnally based on the environment (you might want test data in your development environment but not in production)
You can also edit thos patch types or add your own patch types by editing the patchService
instance in Mouf.
You are a package developer? You want your own package to create/modify tables? See how you can use the patch system for that.
Want to learn more about the patch system? Want to learn how to create you own non db-related patches? Have a look at the advanced documentation.
All versions of utils.patcher with dependencies
mouf/mouf-validators-interface Version ~2.0
mouf/utils.console Version ~1.0