Model, Form and DTO of PWeb CRUD Example

Here will describe about Model is Schema of DB, Form for Data Validation and serialization, lastly DTO for Data validation, serialization, deserialization of API.


Model

from pweb_orm import PwebModel, pweb_orm


class Person(PwebModel):
    name = pweb_orm.Column("name", pweb_orm.String(150), nullable=False)
    email = pweb_orm.Column("email", pweb_orm.String(150), nullable=False)
    password = pweb_orm.Column("password", pweb_orm.String(250), nullable=False)
    address = pweb_orm.Column("address", pweb_orm.Text())


Form

from boot.model.person import Person
from pweb_form_rest import fields, PWebForm


class PersonDetailsForm(PWebForm):

    class Meta:
        model = Person
        load_instance = True

    name = fields.String(required=True, error_messages={"required": "Please enter name"})
    email = fields.Email(required=True, error_messages={"required": "Please enter email"})
    address = fields.String(allow_none=True, type="textarea")


class PersonCreateForm(PersonDetailsForm):
    class Meta:
        model = Person
        load_instance = True

    password = fields.String(required=True, error_messages={"required": "Please enter password"}, type="password")


class PersonUpdateForm(PersonDetailsForm):
    class Meta:
        model = Person
        load_instance = True

    id = fields.Integer(required=True, error_messages={"required": "Please enter id"}, type="hidden", isLabel=False)


DTO

from boot.model.person import Person
from pweb_form_rest import fields, PWebRestDTO


class PersonDetailsDTO(PWebRestDTO):
    class Meta:
        model = Person
        load_instance = True

    name = fields.String(required=True, error_messages={"required": "Please enter name"})
    email = fields.Email(required=True, error_messages={"required": "Please enter email"})
    address = fields.String(allow_none=True)


class PersonCreateDTO(PersonDetailsDTO):
    class Meta:
        model = Person
        load_instance = True

    password = fields.String(required=True, error_messages={"required": "Please enter password"})


class PersonUpdateDTO(PersonDetailsDTO):
    class Meta:
        model = Person
        load_instance = True

    id = fields.Integer(required=True, error_messages={"required": "Please enter id"})
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