數據庫設計通訊簿

Question

我試圖開發一個地址簿的MySQL架構。我的不確定性在於如何對它進行建模，因爲有些聯繫人會有一個電話號碼和一個電子郵件地址，而其他聯繫人可能有多個這樣的電話號碼。在前端，我將創建一個允許用戶添加地址字段的按鈕。

現在我的模型看起來是這樣的：

class Person(models.Model): 
    sex = models.CharField(max_length=32) 
    first_names = models.CharField(max_length=64) 
    last_names = models.CharField(max_length=64) 
    date_of_birth = models.DateField() 
    marital_status = models.CharField(max_length=64) 
    nationality = models.CharField(max_length=64) 

    address_street = models.CharField(max_length=64) 
    address_alt_line = models.CharField(max_length=64) 
    address_zip = models.CharField(max_length=64) 
    address_state = models.CharField(max_length=64) 
    address_city = models.CharField(max_length=64) 
    address_country = models.CharField(max_length=64) 
    phone1 = models.CharField(max_length=64) 
    phone2 = models.CharField(max_length=64) 
    phone3 = models.CharField(max_length=64) 
    phone4 = models.CharField(max_length=64) 
    phone5 = models.CharField(max_length=64) 
    email1 = models.CharField(max_length=64) 
    email2 = models.CharField(max_length=64) 
    email3 = models.CharField(max_length=64) 
    email4 = models.CharField(max_length=64) 
    email5 = models.CharField(max_length=64) 
    website1 = models.CharField(max_length=64) 
    website2 = models.CharField(max_length=64) 
    website3 = models.CharField(max_length=64) 
    website4 = models.CharField(max_length=64) 
    website5 = models.CharField(max_length=64) 
    website6 = models.CharField(max_length=64) 
    website7 = models.CharField(max_length=64) 
    website8 = models.CharField(max_length=64) 
    website9 = models.CharField(max_length=64) 

但是我知道，這不是很乾。我想到了另一種選擇是創建了地址，電子郵箱，電話號碼，網站等人士和獨立的那些獨立的模型，然後進行person.id這些模型外鍵：

class Person(models.Model): 
    sex = models.CharField(max_length=32) 
    first_names = models.CharField(max_length=64) 
    last_names = models.CharField(max_length=64) 
    date_of_birth = models.DateField() 
    marital_status = models.CharField(max_length=64) 
    nationality = models.CharField(max_length=64) 


class Address(models.Model): 
    street = models.CharField(max_length=64) 
    alt_line = models.CharField(max_length=64) 
    zip = models.CharField(max_length=64) 
    state = models.CharField(max_length=64) 
    city = models.CharField(max_length=64) 
    country = models.CharField(max_length=64) 
    type = models.CharField(max_length=64) 
    owner = models.ForeignKey(Person, on_delete=models.CASCADE) 


class Phone(models.Model): 
    number = models.CharField(max_length=64) 
    type = models.CharField(max_length=32) 
    owner = models.ForeignKey(Person, on_delete=models.CASCADE) 


class OnlineContact(models.Model): 
    address = models.CharField(max_length=64) 
    type = models.CharField(max_length=32) 
    owner = models.ForeignKey(Person, on_delete=models.CASCADE) 

是任何這些方法好（足夠）還是有更好的方法來做到這一點？我寧願不使用NOSQL數據庫並堅持使用MySQL。僅供參考，我使用Python和Django。

類Person（models.Model）：

Answer 1

，除非你使用相同的模型，並覆蓋其夫婦時間

如果把它拆分爲2種機型，例如我不認爲DRY是有關模型的設計： 用戶，users_details 所以它的邏輯分離權威性的數據和個人數據 但在這情況下，以多分離表

爲什麼你需要的電話，網站這麼多表格，電子郵件 也許你的數據設計ISN」糾正