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Issue with snake_case naming strategy

See original GitHub issue

Issue type:

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

Database system/driver:

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

TypeORM version:

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

Steps to reproduce or a small repository showing the problem:

I have two tables:

product

product_attachment

id product_id

var productAttachment = repository.findAndCount({ relations: 'product'});

QueryFailedError: ER_DUP_FIELDNAME: Duplicate column name ‘ProductAttachment_product_id’

This issue happens because query builder generate alias ProductAttachment_product_id twice: product_attachment.product_id -> ProductAttachment_product_id product_attachment.product.id -> ProductAttachment_product_id

Issue Analytics

State:
Created 5 years ago
Reactions:5
Comments:22 (4 by maintainers)

Top GitHub Comments

22reactions

zwenzacommented, Jul 12, 2019

Can confirm that setting the snake-case naming strategy fixes the issue!

const SnakeNamingStrategy = require('typeorm-naming-strategies').SnakeNamingStrategy;

module.exports = {
   type: "mysql",
   host: "localhost",
   port: 3306,
   ...
   namingStrategy: new SnakeNamingStrategy(),
}

9reactions

cliedeltcommented, Jan 14, 2019

Issue type:

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

Database system/driver:

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

TypeORM version:

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

Steps to reproduce or a small repository showing the problem:

I have two tables:

product

id

product_attachment

id product_id

var productAttachment = repository.findAndCount({ relations: 'product'});

QueryFailedError: ER_DUP_FIELDNAME: Duplicate column name ‘ProductAttachment_product_id’

This issue happens because query builder generate alias ProductAttachment_product_id twice: product_attachment.product_id -> ProductAttachment_product_id product_attachment.product.id -> ProductAttachment_product_id