My ERP

1. User

1.1. Email

1.2. Name

1.3. Display_Name

1.4. Belong To

2. Purchase

2.1. BelongTo Product

2.2. Day

2.3. Special_prime_cost

2.4. Count

3. Author

3.1. HasMany Product

3.2. name

3.3. discount

3.4. comments

3.5. ID?

4. Product

4.1. BelongTo Author

4.2. Author (ID / Name)

4.3. Name

4.4. prime_cost

4.5. suggest_rmb_price

4.6. suggest_ntd_price

5. Product-spec

5.1. related on Product, same price different photo and description

5.2. Related to Product