support EmailStr

pyproject.toml

@@ -33,7 +33,7 @@ classifiers = [
 [tool.poetry.dependencies]
 python = "^3.7"
 SQLAlchemy = ">=2.0.0,<=2.0.11"
-pydantic = "^2.1.1"
+pydantic = { version = ">=2.1.1,<=2.4", extras = ["email"] }
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.0.1"

sqlmodel/main.py

@@ -29,7 +29,8 @@
 )
 
 import pydantic
-from pydantic import BaseModel
+from annotated_types import MaxLen
+from pydantic import BaseModel, EmailStr, ImportString, NameEmail
 from pydantic._internal._fields import PydanticGeneralMetadata
 from pydantic._internal._model_construction import ModelMetaclass
 from pydantic._internal._repr import Representation
@@ -480,7 +481,7 @@ def get_sqlalchemy_type(field: FieldInfo) -> Any:
     metadata = _get_field_metadata(field)
     if type_ is None:
         raise ValueError("Missing field type")
-    if issubclass(type_, str):
+    if issubclass(type_, str) or type_ in (EmailStr, NameEmail, ImportString):
         max_length = getattr(metadata, "max_length", None)
         if max_length:
             return AutoString(length=max_length)
@@ -693,4 +694,6 @@ def _get_field_metadata(field: FieldInfo) -> object:
     for meta in field.metadata:
         if isinstance(meta, PydanticGeneralMetadata):
             return meta
+        if isinstance(meta, MaxLen):
+            return meta
     return object()

tests/test_pydantic_types.py

@@ -0,0 +1,24 @@
+from pydantic import EmailStr, HttpUrl, ImportString, NameEmail
+from sqlmodel import Field, SQLModel, create_engine
+
+
+def test_pydantic_types(clear_sqlmodel, caplog):
+    class Hero(SQLModel, table=True):
+        integer_primary_key: int = Field(
+            primary_key=True,
+        )
+        http: HttpUrl = Field(max_length=250)
+        email: EmailStr
+        name_email: NameEmail = Field(max_length=50)
+        import_string: ImportString = Field(max_length=200, min_length=100)
+
+    engine = create_engine("sqlite://", echo=True)
+    SQLModel.metadata.create_all(engine)
+
+    create_table_log = [
+        message for message in caplog.messages if "CREATE TABLE hero" in message
+    ][0]
+    assert "http VARCHAR(250) NOT NULL," in create_table_log
+    assert "email VARCHAR NOT NULL," in create_table_log
+    assert "name_email VARCHAR(50) NOT NULL," in create_table_log
+    assert "import_string VARCHAR(200) NOT NULL," in create_table_log