fix: model provider credentials null value validate failed (#2009)

api/core/model_runtime/model_providers/model_provider_factory.py

@@ -61,7 +61,7 @@ class ModelProviderFactory:
         # return providers
         return providers
 
-    def provider_credentials_validate(self, provider: str, credentials: dict) -> None:
+    def provider_credentials_validate(self, provider: str, credentials: dict) -> dict:
         """
         Validate provider credentials
 
@@ -80,13 +80,15 @@ class ModelProviderFactory:
 
         # validate provider credential schema
         validator = ProviderCredentialSchemaValidator(provider_credential_schema)
-        validator.validate_and_filter(credentials)
+        filtered_credentials = validator.validate_and_filter(credentials)
 
         # validate the credentials, raise exception if validation failed
-        model_provider_instance.validate_provider_credentials(credentials)
+        model_provider_instance.validate_provider_credentials(filtered_credentials)
+
+        return filtered_credentials
 
     def model_credentials_validate(self, provider: str, model_type: ModelType,
-                                   model: str, credentials: dict) -> None:
+                                   model: str, credentials: dict) -> dict:
         """
         Validate model credentials
 
@@ -107,13 +109,15 @@ class ModelProviderFactory:
 
         # validate model credential schema
         validator = ModelCredentialSchemaValidator(model_type, model_credential_schema)
-        validator.validate_and_filter(credentials)
+        filtered_credentials = validator.validate_and_filter(credentials)
 
         # get model instance of the model type
         model_instance = model_provider_instance.get_model_instance(model_type)
 
         # call validate_credentials method of model type to validate credentials, raise exception if validation failed
-        model_instance.validate_credentials(model, credentials)
+        model_instance.validate_credentials(model, filtered_credentials)
+
+        return filtered_credentials
 
     def get_models(self,
                    provider: Optional[str] = None,

api/core/model_runtime/schema_validators/common_validator.py

@@ -46,7 +46,7 @@ class CommonValidator:
         :return: validated credential form schema value
         """
         #  If the variable does not exist in credentials
-        if credential_form_schema.variable not in credentials:
+        if credential_form_schema.variable not in credentials or not credentials[credential_form_schema.variable]:
             # If required is True, an exception is thrown
             if credential_form_schema.required:
                 raise ValueError(f'Variable {credential_form_schema.variable} is required')