graphql-python / graphql-python/graphene-sqlalchemy
Generate Input Arguments from SQLAlchemy Class?
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Descrizione
Hello,
Do you know if it's possible to generate input arguments dynamically from the SQLAlchemy class that will be transformed by the mutation?
Example:
My input arguments for a `CreatePerson` mutation look like this:
```python
class CreatePersonInput(graphene.InputObjectType):
"""Arguments to create a person."""
name = graphene.String(required=True, description="Name of the person to be created.")
height = graphene.String(default_value="unknown", description="Height of the person to be created.")
mass = graphene.String(default_value="unknown", description="Mass of the person to be created.")
hair_color = graphene.String(default_value="unknown", description="Hair color of the person to be created.")
skin_color = graphene.String(default_value="unknown", description="Skin color of the person to be created.")
eye_color = graphene.String(default_value="unknown", description="Eye color of the person to be created.")
birth_year = graphene.String(default_value="unknown", description="Birth year of the person to be created.")
gender = graphene.String(default_value="unknown", description="Gender of the person to be created.")
planet_id = graphene.ID(default_value="unknown", description="Global Id of the planet from which the person to be created comes from.")
url = graphene.String(default_value="unknown", description="URL of the person in the Star Wars API.")
class CreatePerson(graphene.Mutation):
"""Mutation to create a person."""
person = graphene.Field(lambda: People, description="Person created by this mutation.")
class Arguments:
input = CreatePersonInput(required=True)
...
```
In the meantime, the input arguments for my `UpdatePerson` mutation look like this:
```python
class UpdatePersonInput(graphene.InputObjectType):
"""Arguments to update a person."""
id = graphene.ID(required=True)
name = graphene.String()
height = graphene.String()
mass = graphene.String()
hair_color = graphene.String()
skin_color = graphene.String()
eye_color = graphene.String()
birth_year = graphene.String()
gender = graphene.String()
planet_id = graphene.ID()
url = graphene.String()
class UpdatePerson(graphene.Mutation):
"""Update a person."""
person = graphene.Field(lambda: People, description="Person updated by this mutation.")
class Arguments:
input = UpdatePersonInput(required=True)
...
```
Finally, my SQLAlchemy class look like this:
```python
class ModelPeople(Base):
"""People model."""
__tablename__ = 'people'
id = Column('id', Integer, primary_key=True)
name = Column('name', String)
height = Column('height', String)
mass = Column('mass', String)
hair_color = Column('hair_color', String)
skin_color = Column('skin_color', String)
eye_color = Column('eye_color', String)
birth_year = Column('birth_year', String)
gender = Column('gender', String)
planet_id = Column('planet_id', Integer, ForeignKey('planet.id'))
created = Column('created', String)
edited = Column('edited', String)
url = Column('url', String)
...
```
This is all pretty redundant and it would be ideal if we could just reuse the SQLAlchemy class attributes in the `InputObjectType`
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