Add anonymizer feature

[mazsudo]

Hi there,
here is a first implementation to answer to this #5 feature request.

Concept is:

• provides 2 annotation (at entity & property levels): AnonymizedEntity & AnonymizedProperty

• AnonymizedEntity has 2 possible actions (anonymize & truncate) and a where sql clause to be able to keep some data as they are (admin account or something like that)

• AnonymizedProperty has 3 types (static, composed, expression) and a value field:
  => static : a static value that will be applied on all raw of the table
  => composed : a composed value based on another field of the entity which allow you to update all lines into a format like: email="test+<id>@test.com where id is the identifier of the table which allow to answer to unique index issue (at sql level)
  => expression : a valid sql expression like CONCAT(FLOOR(1 + (RAND() * 1000)), id) to answer to unique constraints issue (at validator level)

This MR mainly contains a command that :

• gather & build AnonymizedMetadata by entity
• validate this AnonymizedMetadata object (check some nullable/unique constraint to give best chances to generated queries to succeed)
• build a query for each AnonymizedMetadata object
• execute those queries

Would love some feedback before going further and writing test/doc ;)

[qsomazzi]

I'm not sure it's possible (or the goal), but it would be awesome to run this command in a production env, and instead of executing thoose queries it will create an anonymized dump of the DB in a target folder. no ?

Besides that, i find that to be a nice way to handle anonymisation through annotation, it feel simple to export and apply to another project.

[mazsudo]

I'm not sure it's possible (or the goal), but it would be awesome to run this command in a production env, and instead of executing thoose queries it will create an anonymized dump of the DB in a target folder. no ?

not the purpose here but your thought kind of already exists here :
https://github.com/ifsnop/mysqldump-php
https://github.com/machbarmacher/gdpr-dump

[fancyweb]

Yes for example I'm pretty sure the concat expression varies by platform.

[mazsudo]

🤔 seems ok at least for mysql & posgresql. WDYT?