Doctrine2 conversion error

Question

What does this error from \"Doctrine2 & Symfony2\" mean?

Could not convert database value \"\" to Doctrine Type array

Answer 1

I would prefer not having everyone running SQL on their Production Database.

 @ORM\Column(type="array", nullable=TRUE)

An easier solution in make the Column nullable, so after you run your "console doctrine:schema:update --force" the existing DB entries will get a NULL value, instead of an empty string. And doctrine can handle a converting the database value NULL to Doctrine Type array. It should be just a NULL array reference. And PHP empty() doesn't care if its zero sized array or NULL.

In MySQL, I get the following sql-dump:

ALTER TABLE my_table ADD my_new_column LONGTEXT DEFAULT NULL COMMENT '(DC2Type:array)'