If I run
php app/console doctrine:schema:update --force
It will update my database from all entities.
I need to update database only for the User entity, what is the solution?
One solution is to define a custom entity manager and then pass that entity manager to
php app/console doctrine:schema:update --force --em="custom"
But maybe it exists something faster without defining a custom entity manager?
According to the command documentation, there is no such option. If this is something you have to do only once, I'd suggest to use the --dump-sql option to get the required SQL instructions, and manually run the ones you need.
P.S. I fail to understand what's the reason to only update the schema for an entity, and leave all the rest of entities not sync'd with the database. That sounds like a recipe for getting db errors.
You can manually use the Doctrine SchemaTool class to generate an SQL diff based only on a single entity. You’ll need access to Doctrine’s EntityManager – the example below assumes access to Symfony’s container.
use Doctrine\ORM\Tools\SchemaTool;
$em = $this->container->get('doctrine')->getManager();
$schemaTool = new SchemaTool($em);
$metadata = $em->getClassMetadata(YourEntity::class);
$sqlDiff = $schemaTool->getUpdateSchemaSql([$metadata], true);
The variable $sqlDiff will now contain an array of SQL statements that are needed to bring the database schema up to date with your entity mapping.
The second argument passed to SchemaTool::getUpdateSchemaSql() is important – without it, the default behaviour would be to generate DROP TABLE statements for every other table that appears in your database.
Related
I am using the Lexik Trnaslation Bundle.
After I ran
./bin/console doctrine:schema:update --force
It added some tables to my database. These tables however don't have any Entities or Repository Classes.
How can I fetch the Data from these tables?
Is this even possible with doctrine?
There are entity classes and repository classes mapped to these new tables, or course. Otherwise doctrine:schema:update wouldn't create any tables at all.
If you take a look at the source code of the plugin, you'll see the corresponding classes here.
The repositories are:
FileRepository
TransUnitRepository
TranslationRepository
These repositories are not declared as services, so you won't be able to inject them directly. But you can inject the ManagerRegistryInterface and get the repository like this:
// example to get the FileRepository, assuming that $this->manager
// holds the EntityManager
$fileRepository = $this
->manager
->getRepository(Lexik\Bundle\TranslationBundle\Entity\File::class);
I have a database table which has a lot of fields. I want to create an Entity which maps only to few of those fields.
Is there a practical way to achieve that?
When I try to make an entity and mapping it via annotations, the doctrine:schema:validate command says that the entity is not in sync, and is right.
When I try to make a doctrine:schema:update it automatically drops all the fields that the entity doesn't have. I want that the schema update command updates only the fields written in my entity class.
With Doctrine ORM you map your database table to a PHP class and a row from that table is mapped to an instance of the entity class.
So i am pretty sure that you have to map all your fields. Otherwise if you dont want to - user ActiveRecord, it is possible there.
I'm trying to learn the basics of Symfony, and have come across a problem that baffles me.
I'm trying to write Data to a SQL Table, following (mostly) the instructions from the documentation ( http://symfony.com/doc/current/book/doctrine.html ). I created an entity via
$ php bin/console doctrine:generate:entity
and it is mapped to my DB Table correctly, I can read and write, no problem. After that I added a column to my table and the corresponding lines to my Entity:
/**
* #var string
*
* #ORM\Column(name="User_Credentials", type="text")
*/
private $userCredentials;
Then I tried creating the setters and getters, but no changes were made, just a backup of my Entity. So I added getter and setter myself, but when attempting to write to the DB the corresponding column is ommited, remaining empty. No errors are given. I checked and re-checked for typos or other sytax errors, but could not find any. When doing
$ php bin/console doctrine:schema:update --dump-sql
I get
ALTER TABLE st_users DROP User_Credentials;
So it seems my Column is completely ignored. I cleared the cache repatedly, which changed nothing. I am, obviously, lost. Any hint as to the right path will be appreciated.
Thank you.
You can use DoctrineMigrationsBundle for this operations. This bundle will manage your database operations. (Drop, Alter, Create etc.)
Anyway, when you add a new column you can try this: php app/console doctrine:schema:update --force
Well, this is embarassing...
Anyway, if someone else is having the same problem: I had a Tab before the '#ORM\Column' annotation, and it seems the parser can't handle that. Deleting the tab and adding a space did the trick.
Mert's answer is correct anyway, so I will mark it as the right answer.
I added a column to my table and the corresponding lines to my Entity
The concept of Symfony is to add column only to entity, but not to table itself.
Then, when you execute
php bin/console doctrine:schema:update --force
Symfony would detect that you have a new column and it will add column to the table automatically.
PS. Regarding clearing a cache. In case apc cache is enabled in Symfony - you also need to restart Apache or php-fpm process. Otherwise it will ignore new annotations.
This might be a dumb question but I'm clueless as to how to go about this.
I've got the entity "MailEntity". However, My database does not contain a table that corresponds with this entity yet.
Question
I would like to know how to generate the table that corresponds with the Entity I created. I've been looking for this but whatever I search on google, the same results seem to pop up constantly.
Update
I've come to know that I can achieve what I want by doing php app/console doctrine:schema:update. Adding the --dump-sql parameter will dump the sql before the schema is actually updated.
However, I would like to do this for a single Bundle. A single Entity would be even better. I just want to create a table from the MailEntity without changing anything else in the database.
If you already have the entity classes ready to go, simply run:
app/console doctrine:schema:update
This should list all the queries doctrine needs to run to create the tables. Run the command with the --force flag to execute them. It's documented here
It might be worth looking at the doctrine migrations bundle, which allows you to diff the current DB status with the entities, and generate migration scripts based on that diff see the docs
You could use php app/console doctrine:schema:update.
This command will tell doctrine to execute the necessary SQL so that your database reflects your doctrine schema. Add --force to actually execute the query.
If you want to check the generated SQL command first, you can use --dump-sql. It will print what would be executed with --force.
Related documentation you may read for further information
EDIT : If you want to create the table for a single entity, the easiest way is to dump the generated sql with --dump-sql and then extract the line responsible of your MailEntity table creation, then execute it manually.
I would not recommend to do it this way though, you should let Doctrine synchronise your database on its own. This kind of tricks may result in errors in your database.
What is the best way to rebuild a model without loss data in MySQL for Symfony?
What if I have a big site, and a lot of data in the database and I would like after six months to add few new fields to database?
You can use migration.
Doctine manual
Symfony task for migrations
Slideshare presentation
Slideshare presentation
So you need write migrations, migrate, and build your models, forms, etc.
I suggest you use #denys281 for Symfony1.4 ....in Symfony2 however its VERY simple ... just use the command :
php app/console doctrine:schema:update --force
It compares what your database should look like (based on the mapping information of your entities) with how it actually looks, and generates the SQL statements needed to update the database to where it should be. In other words, if you add a new property with mapping metadata to Product and run this task again, it will generate the "alter table" statement needed to add that new column to the existing product table. So it doesnt remove any data
There is also a DoctrineMigrations bundle for Symfony2 if you fancy that route -> http://symfony.com/doc/current/bundles/DoctrineMigrationsBundle/index.html