Ionic 4 mangles table names when using --prod

Issue type:

[ ] question [x] bug report [ ] feature request [ ] documentation issue

Database system/driver:

[x] cordova [ ] mongodb [ ] mssql [ ] mysql / mariadb [ ] oracle [ ] postgres [ ] sqlite [ ] sqljs [ ] react-native

TypeORM version:

[x] latest [x] @next [ ] 0.x.x (or put your version here)

Steps to reproduce or a small repository showing the problem: Can’t make Ionic work using the --prod flag. Everything works perfectly when using ionic cordova run android or ionic cordova run android --release but as soon as we add the --prod flag, things start to break. My SQL queries show that all the Queries running look like FROM TABLE a irrespective of what model is being used.

I have tried the workaround suggested in Ionic example: https://github.com/typeorm/ionic-example

• Using table name with Entity @Entity('user')
• Getting the repository using the table name getRepository('user')

[AmirTugi]

@pleerock Is there a solution/ a tool for checking that cyclic dependency with the mangle option? I still want to use the uglify ability.

[kunalgrover05]

Also confirmed with ionic-example repository that I am able to reproduce the same problem. Observations which are common across both my app and ionic-example.

• The tables are used as “a” or “n” for all SELECT statements

query:  SELECT "n"."id" AS "n_id", "n"."name" AS "n_name" FROM "category" "n" WHERE (("n"."id" = ?) OR ("n"."id" = ?)) -- PARAMETERS: [1,2]

• Error received when trying to save Post in the Ionic-example.

Uncaught (in promise): Error: Cyclic dependency: "n"

• INSERTs work when the table does not have any foreign key. In the Ionic-example, if I try to save Category and Author separately they work, but whenever I try to save Post it fails.

query:  INSERT INTO "category"("name") VALUES (?) -- PARAMETERS: ["Programming"]

I believe what is happening is in some queries tables get renamed to “a” and it fails since there’s a cyclic dependency between the Table we are creating data and the FK relation.