Coverage for docs_src/tutorial/relationship_attributes/back_populates/tutorial003_py39.py: 100%

1from typing import Optional 4 ctx1abcd

2 

3from sqlmodel import Field, Relationship, SQLModel, create_engine 4 ctx1abcd

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5 

6class Weapon(SQLModel, table=True): 4 ctx1abcd

7 id: Optional[int] = Field(default=None, primary_key=True) 4 ctx1abcd

8 name: str = Field(index=True) 4 ctx1abcd

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10 hero: "Hero" = Relationship(back_populates="weapon") 4 ctx1abcd

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13class Power(SQLModel, table=True): 4 ctx1abcd

14 id: Optional[int] = Field(default=None, primary_key=True) 4 ctx1abcd

15 name: str = Field(index=True) 4 ctx1abcd

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17 hero_id: int = Field(foreign_key="hero.id") 4 ctx1abcd

18 hero: "Hero" = Relationship(back_populates="powers") 4 ctx1abcd

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20 

21class Team(SQLModel, table=True): 4 ctx1abcd

22 id: Optional[int] = Field(default=None, primary_key=True) 4 ctx1abcd

23 name: str = Field(index=True) 4 ctx1abcd

24 headquarters: str 4 ctx1abcd

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26 heroes: list["Hero"] = Relationship(back_populates="team") 4 ctx1abcd

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28 

29class Hero(SQLModel, table=True): 4 ctx1abcd

30 id: Optional[int] = Field(default=None, primary_key=True) 4 ctx1abcd

31 name: str = Field(index=True) 4 ctx1abcd

32 secret_name: str 4 ctx1abcd

33 age: Optional[int] = Field(default=None, index=True) 4 ctx1abcd

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35 team_id: Optional[int] = Field(default=None, foreign_key="team.id") 4 ctx1abcd

36 team: Optional[Team] = Relationship(back_populates="heroes") 4 ctx1abcd

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38 weapon_id: Optional[int] = Field(default=None, foreign_key="weapon.id") 4 ctx1abcd

39 weapon: Optional[Weapon] = Relationship(back_populates="hero") 4 ctx1abcd

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41 powers: list[Power] = Relationship(back_populates="hero") 4 ctx1abcd

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44sqlite_file_name = "database.db" 4 ctx1abcd

45sqlite_url = f"sqlite:///{sqlite_file_name}" 4 ctx1abcd

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47engine = create_engine(sqlite_url, echo=True) 4 ctx1abcd

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49 

50def create_db_and_tables(): 4 ctx1abcd

51 SQLModel.metadata.create_all(engine) 4 ctx1abcd

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53 

54def main(): 4 ctx1abcd

55 create_db_and_tables() 4 ctx1abcd

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57 

58if __name__ == "__main__": 4 ctx1abcd

59 main()