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Doctrine naming strategy bundle

Default Symfony2 Doctrine naming strategy doctrine.orm.naming_strategy.underscore for Entity tables is really great and we usually use it without any modifications. However, generated table names sometimes can be too ambiguous and conflicting, especially if vendor bundles are used, or there is a possibility to reuse some of the code from previous projects.

Common practice is, as always, to take over the control of setting names for Entity tables explicitly.

However, this can be really painful for lazy developers.

Modifying naming strategy to the rescue

In Doctrine2, it is quite possible with ease to take over the control of the naming strategy (for details see this Doctrine "Implementing a NamingStrategy") article), while Symfony2 in process of construction of Doctrine service, fetch naming strategy implementation as a service (see this Stackowerflow question and answer).

In that matter, the purpose of this bundle is to provide you with additional naming strategies which would allow you to keep good quality naming convention for your Entity tables, prevent table name conflicts and still be lazy about it.

Naming strategies within the bundle

Provided naming strategies within the bundles are:

• runopencode.doctrine.orm.naming_strategy.underscored_bundle_prefix: Extension of default, underscored, naming strategy, which will add a bundle name prefix to the generated table names (without "bundle" in prefix).
• runopencode.doctrine.orm.naming_strategy.underscored_class_namespace_prefix: Extension of default, underscored, naming strategy, which will add a configured prefix to the generated table names of the Entities based on its namespace.
• runopencode.doctrine.orm.naming_strategy.underscored_namer_collection: Underscored namer collection is collection of several naming strategies, and one default naming strategy. Default naming strategy will define default name, and then others namers are consulted. First namer in collection that provides different name from default one finally determines name. This will allow you to mix naming strategies, and in conjunction with white and black lists of provided namers you can fine tune naming process of your tables in batch.

Installing the bundle

You can install this bundle by using composer:

php composer require "runopencode/doctrine-naming-strategy-bundle"                            

or you can add bundle name to your composer.json and execute php composer update command.

After that, all you need is to add the bundle to your config/bundles.php file:

<?php 

return [
    // ... other bundles
    RunOpenCode\Bundle\DoctrineNamingStrategy\DoctrineNamingStrategyBundle::class => [ 'all' => true ],
];               

And in your project config/packages/doctrine.yml you should define which naming strategy you would like to use:

doctrine:
    orm:
        naming_strategy: [SERVICE NAME OF NAMING STRATEGY THAT YOU WOULD LIKE TO USE]

NOTE: Adding this bundle to your project make sense only at the very beginning of the project, PRIOR to materialization of the tables into database. Otherwise, it will give you a quite an issue if you do not use properly namers and their possibility to define white and black lists.

Naming strategies configuration options

Options for runopencode.doctrine.orm.naming_strategy.underscored_bundle_prefix

• case: Optional, enum, possible values: lowercase or uppercase. Default is lowercase.
• map: Optional, array. List of bundle names and desired prefixes to use. Otherwise, namer will use full bundle name without "Bundle" at the end of the bundle name. This is quite useful if you are using, per example, MySQL which has table name limit to up to 60 chars.
• whitelist: Optional, array. List of bundles for which prefix to the table name should be added.
• blacklist: Optional, array. Oposite of whitelist, list of bundles for which prefix to the table name should not be added.
• join_table_field_suffix: Optional, boolean. Whether to add field name as suffix to join table name. It is very useful to lazy developers when they have multiple many-to-many relations between same entities, so they do not have to set table name manually because of table name collisions. Default is true.

NOTE: You can either use whitelist or blacklist or none, but never booth.

Configuration example

runopencode_doctrine_naming_strategy:
    underscored_bundle_prefix:
        case: lowercase
        map:
            MyLongNameOfTheBundle: my_prefix
            MyOtherLongNameOfTheBundle: my_prefix_2
        blacklist:
            - DoNotPrefixThisBundle         

Options for runopencode.doctrine.orm.naming_strategy.underscored_class_namespace_prefix

• case: Optional, enum, possible values: lowercase or uppercase. Default is lowercase.
• map: Required, array. Map of FQCNs prefixes and table prefixes to use when namer stumbles upon Entity class under given FQCN prefix.
• whitelist: Optional, array. List of FQCNs prefixes for which prefix to the table name should be added.
• blacklist: Optional, array. Oposite of whitelist, list of FQCNs prefixes for which prefix to the table name should not be added.
• join_table_field_suffix: Optional, boolean. Whether to add field name as suffix to join table name. It is very useful to lazy developers when they have multiple many-to-many relations between same entities, so they do not have to set table name manually because of table name collisions. Default is true.

NOTE: You can either use whitelist or blacklist or none, but never booth.

Configuration example

runopencode_doctrine_naming_strategy:
    underscored_class_namespace_prefix:
        case: uppercase
        map:
            My\Class\Namespace\Entity: my_prefix
        blacklist:
            - My\Class\Namespace\Entity\ThisShouldBeSkipped
            - My\Class\Namespace\Entity\ThisShouldBeSkippedAsWell

Options for runopencode.doctrine.orm.naming_strategy.underscored_namer_collection

• default: Optional, default namer to use. Default value is Symfony default namer for ORM, doctrine.orm.naming_strategy.underscore.
• namers: List of namers to use for proposing new, different name from name which was provided by default namer. Note that first different proposal wins.
• join_table_field_suffix: Optional, boolean. Whether to add field name as suffix to join table name. It is very useful to lazy developers when they have multiple many-to-many relations between same entities, so they do not have to set table name manually because of table name collisions. Default is true.

Configuration example

runopencode_doctrine_naming_strategy:         
    underscored_namer_collection:
        default: doctrine.orm.naming_strategy.underscore
        namers:
            - runopencode.doctrine.orm.naming_strategy.underscored_class_namespace_prefix
            - runopencode.doctrine.orm.naming_strategy.underscored_bundle_prefix            

Known issues

• Some DBMS have certain limitation in regards to number of characters in table and/or column names (per example, MySQL which allows 64 chars, read this article for details). Adding long prefixes can easily breach that limitation.

Development

Library is delivered with dockerized environment. You may run docker-compose up -d to fire up environment, and then you can run bin/attach to attach container to your CLI. From container, you may run scripts defined in composer.json file to do static analysis, check code style, as well as run tests.

In order to run full build, you need to have ant installed and you may run it from root directory of your project from host (outside of container).