Merge pull request #123 from phenobarbital/new-mutables

fixing support for dynamic fields

Author: phenobarbital

datamodel/abstract.py

@@ -117,10 +117,6 @@ def __new__(cls, name, bases, attrs, **kwargs):
                         df.type = _type
                         cols[field] = df
                         attrs[field] = df
-                    elif strict is True and field not in attrs:
-                        raise ValueError(
-                            f"Cannot create a new Field {field} on {cls.__name__}"
-                        )
                     else:
                         # add a new field, based on type
                         df = Field(type=_type, required=False, default=None)

datamodel/version.py

@@ -3,7 +3,7 @@
 __title__ = 'python-datamodel'
 __description__ = ('simple library based on python +3.8 to use Dataclass-syntax'
                    'for interacting with Data')
-__version__ = '0.3.5'
+__version__ = '0.3.6'
 __author__ = 'Jesus Lara'
 __author_email__ = '[email protected]'
 __license__ = 'BSD'

examples/dynamic.py

@@ -3,6 +3,18 @@
 from datamodel import BaseModel, Column
 
 
+class AuthBackend(BaseModel):
+    name: str
+    uri: str
+    description: str
+    icon: str
+    external: bool = Column(required=True, default=False)
+    headers: dict = Column(required=False, default_factory=dict)
+
+    class Meta:
+        strict = True
+        frozen = False
+
 class Identity(BaseModel):
     """Identity.