refactor(orm): move validateInput logic into InputValidator

packages/orm/src/client/client-impl.ts

@@ -120,7 +120,9 @@ export class ClientImpl {
         }
 
         this.kysely = new Kysely(this.kyselyProps);
-        this.inputValidator = baseClient?.inputValidator ?? new InputValidator(this as any);
+        this.inputValidator =
+            baseClient?.inputValidator ??
+            new InputValidator(this as any, { enabled: this.$options.validateInput !== false });
 
         return createClientProxy(this);
     }
@@ -348,7 +350,9 @@ export class ClientImpl {
         const newClient = new ClientImpl(this.schema, newOptions, this);
         // create a new validator to have a fresh schema cache, because plugins may extend the
         // query args schemas
-        newClient.inputValidator = new InputValidator(newClient as any);
+        newClient.inputValidator = new InputValidator(newClient as any, {
+            enabled: newOptions.validateInput !== false,
+        });
         return newClient;
     }
 
@@ -367,7 +371,9 @@ export class ClientImpl {
         const newClient = new ClientImpl(this.schema, newOptions, this);
         // create a new validator to have a fresh schema cache, because plugins may
         // extend the query args schemas
-        newClient.inputValidator = new InputValidator(newClient as any);
+        newClient.inputValidator = new InputValidator(newClient as any, {
+            enabled: newClient.$options.validateInput !== false,
+        });
         return newClient;
     }
 
@@ -380,7 +386,9 @@ export class ClientImpl {
         const newClient = new ClientImpl(this.schema, newOptions, this);
         // create a new validator to have a fresh schema cache, because plugins may
         // extend the query args schemas
-        newClient.inputValidator = new InputValidator(newClient as any);
+        newClient.inputValidator = new InputValidator(newClient as any, {
+            enabled: newOptions.validateInput !== false,
+        });
         return newClient;
     }
 
@@ -400,7 +408,9 @@ export class ClientImpl {
     $setOptions<Options extends ClientOptions<SchemaDef>>(options: Options): ClientContract<SchemaDef, Options> {
         const newClient = new ClientImpl(this.schema, options as ClientOptions<SchemaDef>, this);
         // create a new validator to have a fresh schema cache, because options may change validation settings
-        newClient.inputValidator = new InputValidator(newClient as any);
+        newClient.inputValidator = new InputValidator(newClient as any, {
+            enabled: newClient.$options.validateInput !== false,
+        });
         return newClient as unknown as ClientContract<SchemaDef, Options>;
     }
 

packages/orm/src/client/contract.ts

@@ -138,8 +138,7 @@ export type ClientContract<
     ): ClientContract<Schema, NewOptions, ExtQueryArgs, ExtClientMembers>;
 
     /**
-     * Returns a new client enabling/disabling input validations expressed with attributes like
-     * `@email`, `@regex`, `@@validate`, etc.
+     * Returns a new client enabling/disabling query args validation.
      *
      * @deprecated Use {@link $setOptions} instead.
      */

packages/orm/src/client/crud/validator/validator.ts

@@ -25,11 +25,23 @@ import { ZodSchemaFactory } from '../../zod/factory';
 
 type GetSchemaFunc<Schema extends SchemaDef> = (model: GetModels<Schema>) => ZodType;
 
+export type InputValidatorOptions = {
+    /**
+     * Whether validation is enabled. Defaults to `true`.
+     */
+    enabled?: boolean;
+};
+
 export class InputValidator<Schema extends SchemaDef> {
     readonly zodFactory: ZodSchemaFactory<Schema>;
+    private readonly enabled: boolean;
 
-    constructor(private readonly client: ClientContract<Schema>) {
+    constructor(
+        private readonly client: ClientContract<Schema>,
+        options?: InputValidatorOptions,
+    ) {
         this.zodFactory = new ZodSchemaFactory(client);
+        this.enabled = options?.enabled !== false;
     }
 
     // #region Entry points
@@ -183,6 +195,9 @@ export class InputValidator<Schema extends SchemaDef> {
 
     // TODO: turn it into a Zod schema and cache
     validateProcedureInput(proc: string, input: unknown): unknown {
+        if (!this.enabled) {
+            return input;
+        }
         const procDef = (this.client.$schema.procedures ?? {})[proc] as ProcedureDef | undefined;
         invariant(procDef, `Procedure "${proc}" not found in schema`);
 
@@ -270,6 +285,9 @@ export class InputValidator<Schema extends SchemaDef> {
     // #region Validation helpers
 
     private validate<T>(model: GetModels<Schema>, operation: string, getSchema: GetSchemaFunc<Schema>, args: unknown) {
+        if (!this.enabled) {
+            return args as T;
+        }
         const schema = getSchema(model);
         const { error, data } = schema.safeParse(args);
         if (error) {

packages/orm/src/client/options.ts

@@ -193,8 +193,11 @@ export type ClientOptions<Schema extends SchemaDef> = QueryOptions<Schema> & {
     fixPostgresTimezone?: boolean;
 
     /**
-     * Whether to enable input validations expressed with attributes like `@email`, `@regex`,
-     * `@@validate`, etc. Defaults to `true`.
+     * Whether to enable query args validation. Defaults to `true`.
+     *
+     * **USE WITH CAUTION**, as setting it to `false` will allow malformed input to pass through, causing
+     * incorrect SQL generation or runtime errors. If you use validation attributes like `@email`, `@regex`,
+     * etc., in ZModel, they will be ignored too.
      */
     validateInput?: boolean;
 

packages/orm/src/client/zod/factory.ts

@@ -108,6 +108,7 @@ export class ZodSchemaFactory<
     private readonly allFilterKinds = [...new Set(Object.values(FILTER_PROPERTY_TO_KIND))];
     private readonly schema: Schema;
     private readonly options: Options;
+    private readonly extraValidationsEnabled = true;
 
     constructor(client: ClientContract<Schema, Options, ExtQueryArgs, any>);
     constructor(schema: Schema, options?: Options);
@@ -125,10 +126,6 @@ export class ZodSchemaFactory<
         return this.options.plugins ?? [];
     }
 
-    private get extraValidationsEnabled() {
-        return this.options.validateInput !== false;
-    }
-
     private shouldIncludeRelations(options?: CreateSchemaOptions): boolean {
         return options?.relationDepth === undefined || options.relationDepth > 0;
     }

tests/e2e/orm/validation/custom-validation.test.ts

@@ -116,7 +116,7 @@ describe('Custom validation tests', () => {
         }
     });
 
-    it('allows disabling validation', async () => {
+    it('disabling validation makes validation attributes ineffective', async () => {
         const db = await createTestClient(
             `
             model User {
@@ -180,6 +180,95 @@ describe('Custom validation tests', () => {
         ).toBeRejectedByValidation();
     });
 
+    it('disabling validation skips structural validation for all CRUD operations', async () => {
+        const db = await createTestClient(
+            `
+            model User {
+                id Int @id @default(autoincrement())
+                email String
+                name String
+            }
+            `,
+        );
+
+        const dbNoValidation = db.$setOptions({ ...db.$options, validateInput: false });
+
+        // Helper: assert that a promise rejects but NOT with a Zod-based validation error
+        // (the cause of a Zod validation error is a ZodError)
+        const expectNonValidationError = async (promise: Promise<unknown>) => {
+            try {
+                await promise;
+            } catch (err: any) {
+                if (err.reason === 'invalid-input') {
+                    expect(err.cause?.constructor?.name).not.toBe('ZodError');
+                }
+                return;
+            }
+            // resolving is also acceptable — it means validation was skipped and the ORM handled it
+        };
+
+        // create - missing required "data" is normally rejected by Zod validation
+        await expect(db.user.create({} as any)).toBeRejectedByValidation();
+        // with validation disabled, it skips Zod validation
+        await expectNonValidationError(dbNoValidation.user.create({} as any));
+
+        // update - missing required "where" is normally rejected by Zod validation
+        await expect(db.user.update({ data: { email: 'new@b.com' } } as any)).toBeRejectedByValidation();
+        await expectNonValidationError(dbNoValidation.user.update({ data: { email: 'new@b.com' } } as any));
+
+        // delete - missing required "where" is normally rejected by Zod validation
+        await expect(db.user.delete({} as any)).toBeRejectedByValidation();
+        await expectNonValidationError(dbNoValidation.user.delete({} as any));
+
+        // upsert - missing required fields is normally rejected by Zod validation
+        await expect(db.user.upsert({} as any)).toBeRejectedByValidation();
+        await expectNonValidationError(dbNoValidation.user.upsert({} as any));
+    });
+
+    it('$setInputValidation toggles validation', async () => {
+        const db = await createTestClient(
+            `
+            model Item {
+                id Int @id @default(autoincrement())
+                url String @url
+            }
+            `,
+        );
+
+        // validation enabled by default
+        await expect(db.item.create({ data: { url: 'not-a-url' } })).toBeRejectedByValidation();
+
+        // disable via $setInputValidation
+        const dbDisabled = db.$setInputValidation(false);
+        await expect(dbDisabled.item.create({ data: { url: 'not-a-url' } })).toResolveTruthy();
+
+        // re-enable via $setInputValidation
+        const dbReEnabled = dbDisabled.$setInputValidation(true);
+        await expect(dbReEnabled.item.create({ data: { url: 'still-not-a-url' } })).toBeRejectedByValidation();
+
+        // valid data should work with re-enabled validation
+        await expect(dbReEnabled.item.create({ data: { url: 'https://example.com' } })).toResolveTruthy();
+    });
+
+    it('disabling validation at client creation time', async () => {
+        const db = await createTestClient(
+            `
+            model Post {
+                id Int @id @default(autoincrement())
+                title String @length(min: 5)
+            }
+            `,
+            { validateInput: false },
+        );
+
+        // should skip validation since validateInput is false from the start
+        await expect(db.post.create({ data: { id: 1, title: 'ab' } })).toResolveTruthy();
+
+        // re-enable validation
+        const dbValidated = db.$setInputValidation(true);
+        await expect(dbValidated.post.create({ data: { title: 'ab' } })).toBeRejectedByValidation();
+    });
+
     it('checks arg type for validation functions', async () => {
         // length() on relation field
         await loadSchemaWithError(