all: use more go-ish error for constraint failures

examples/edgeindex/ent/city_create.go

@@ -110,9 +110,7 @@ func (cc *CityCreate) sqlSave(ctx context.Context) (*City, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	c.ID = int(id)
-
 	return c, nil
 }

examples/edgeindex/ent/city_update.go

@@ -181,7 +181,7 @@ func (cu *CityUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(cu.streets) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"streets\" %v already connected to a different \"City\"", keys(cu.streets))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"streets\" %v already connected to a different \"City\"", keys(cu.streets))})
 			}
 		}
 	}
@@ -354,7 +354,7 @@ func (cuo *CityUpdateOne) sqlSave(ctx context.Context) (c *City, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(cuo.streets) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"streets\" %v already connected to a different \"City\"", keys(cuo.streets))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"streets\" %v already connected to a different \"City\"", keys(cuo.streets))})
 			}
 		}
 	}

examples/edgeindex/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/edgeindex/ent/street_create.go

@@ -115,9 +115,7 @@ func (sc *StreetCreate) sqlSave(ctx context.Context) (*Street, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	s.ID = int(id)
-
 	return s, nil
 }

examples/entcpkg/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/entcpkg/ent/user_create.go

@@ -50,9 +50,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/m2m2types/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/m2m2types/ent/group_create.go

@@ -110,9 +110,7 @@ func (gc *GroupCreate) sqlSave(ctx context.Context) (*Group, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	gr.ID = int(id)
-
 	return gr, nil
 }

examples/m2m2types/ent/user_create.go

@@ -128,9 +128,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/m2mbidi/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/m2mbidi/ent/user_create.go

@@ -127,9 +127,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/m2mrecur/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/m2mrecur/ent/user_create.go

@@ -167,9 +167,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/o2m2types/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/o2m2types/ent/pet_create.go

@@ -115,9 +115,7 @@ func (pc *PetCreate) sqlSave(ctx context.Context) (*Pet, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	pe.ID = int(id)
-
 	return pe, nil
 }

examples/o2m2types/ent/user_create.go

@@ -128,9 +128,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/o2m2types/ent/user_update.go

@@ -206,7 +206,7 @@ func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(uu.pets) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uu.pets))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uu.pets))})
 			}
 		}
 	}
@@ -406,7 +406,7 @@ func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(uuo.pets) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uuo.pets))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uuo.pets))})
 			}
 		}
 	}

examples/o2mrecur/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/o2mrecur/ent/node_create.go

@@ -154,9 +154,7 @@ func (nc *NodeCreate) sqlSave(ctx context.Context) (*Node, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	n.ID = int(id)
-
 	return n, nil
 }

examples/o2mrecur/ent/node_update.go

@@ -249,7 +249,7 @@ func (nu *NodeUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(nu.children) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"children\" %v already connected to a different \"Node\"", keys(nu.children))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"children\" %v already connected to a different \"Node\"", keys(nu.children))})
 			}
 		}
 	}
@@ -491,7 +491,7 @@ func (nuo *NodeUpdateOne) sqlSave(ctx context.Context) (n *Node, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(nuo.children) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"children\" %v already connected to a different \"Node\"", keys(nuo.children))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"children\" %v already connected to a different \"Node\"", keys(nuo.children))})
 			}
 		}
 	}

examples/o2o2types/ent/card_create.go

@@ -129,9 +129,7 @@ func (cc *CardCreate) sqlSave(ctx context.Context) (*Card, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	c.ID = int(id)
-
 	return c, nil
 }

examples/o2o2types/ent/card_update.go

@@ -171,7 +171,7 @@ func (cu *CardUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(cu.owner) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"owner\" %v already connected to a different \"Card\"", keys(cu.owner))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"owner\" %v already connected to a different \"Card\"", keys(cu.owner))})
 			}
 		}
 	}
@@ -333,7 +333,7 @@ func (cuo *CardUpdateOne) sqlSave(ctx context.Context) (c *Card, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(cuo.owner) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"owner\" %v already connected to a different \"Card\"", keys(cuo.owner))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"owner\" %v already connected to a different \"Card\"", keys(cuo.owner))})
 			}
 		}
 	}

examples/o2o2types/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/o2o2types/ent/user_create.go

@@ -133,9 +133,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/o2o2types/ent/user_update.go

@@ -190,7 +190,7 @@ func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(uu.card) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"card\" %v already connected to a different \"User\"", keys(uu.card))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"card\" %v already connected to a different \"User\"", keys(uu.card))})
 			}
 		}
 	}
@@ -373,7 +373,7 @@ func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(uuo.card) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"card\" %v already connected to a different \"User\"", keys(uuo.card))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"card\" %v already connected to a different \"User\"", keys(uuo.card))})
 			}
 		}
 	}

examples/o2obidi/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/o2obidi/ent/user_create.go

@@ -132,9 +132,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/o2obidi/ent/user_update.go

@@ -203,7 +203,7 @@ func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(uu.spouse) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("\"spouse\" (%v) already connected to a different \"User\"", eid)})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("\"spouse\" (%v) already connected to a different \"User\"", eid)})
 			}
 		}
 	}
@@ -400,7 +400,7 @@ func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(uuo.spouse) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("\"spouse\" (%v) already connected to a different \"User\"", eid)})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("\"spouse\" (%v) already connected to a different \"User\"", eid)})
 			}
 		}
 	}

examples/o2orecur/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/o2orecur/ent/node_create.go

@@ -159,9 +159,7 @@ func (nc *NodeCreate) sqlSave(ctx context.Context) (*Node, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	n.ID = int(id)
-
 	return n, nil
 }

examples/o2orecur/ent/node_update.go

@@ -212,7 +212,7 @@ func (nu *NodeUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(nu.prev) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"prev\" %v already connected to a different \"Node\"", keys(nu.prev))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"prev\" %v already connected to a different \"Node\"", keys(nu.prev))})
 			}
 		}
 	}
@@ -240,7 +240,7 @@ func (nu *NodeUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(nu.next) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"next\" %v already connected to a different \"Node\"", keys(nu.next))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"next\" %v already connected to a different \"Node\"", keys(nu.next))})
 			}
 		}
 	}
@@ -445,7 +445,7 @@ func (nuo *NodeUpdateOne) sqlSave(ctx context.Context) (n *Node, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(nuo.prev) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"prev\" %v already connected to a different \"Node\"", keys(nuo.prev))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"prev\" %v already connected to a different \"Node\"", keys(nuo.prev))})
 			}
 		}
 	}
@@ -473,7 +473,7 @@ func (nuo *NodeUpdateOne) sqlSave(ctx context.Context) (n *Node, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(nuo.next) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"next\" %v already connected to a different \"Node\"", keys(nuo.next))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"next\" %v already connected to a different \"Node\"", keys(nuo.next))})
 			}
 		}
 	}

examples/start/ent/car_create.go

@@ -134,9 +134,7 @@ func (cc *CarCreate) sqlSave(ctx context.Context) (*Car, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	c.ID = int(id)
-
 	return c, nil
 }

examples/start/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/start/ent/group_create.go

@@ -114,9 +114,7 @@ func (gc *GroupCreate) sqlSave(ctx context.Context) (*Group, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	gr.ID = int(id)
-
 	return gr, nil
 }

examples/start/ent/user_create.go

@@ -182,9 +182,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/start/ent/user_update.go

@@ -261,7 +261,7 @@ func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(uu.cars) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"cars\" %v already connected to a different \"User\"", keys(uu.cars))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"cars\" %v already connected to a different \"User\"", keys(uu.cars))})
 			}
 		}
 	}
@@ -546,7 +546,7 @@ func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(uuo.cars) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"cars\" %v already connected to a different \"User\"", keys(uuo.cars))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"cars\" %v already connected to a different \"User\"", keys(uuo.cars))})
 			}
 		}
 	}

examples/traversal/ent/ent.go

@@ -127,30 +127,31 @@ func IsNotSingular(err error) bool {
 	return ok
 }
 
-// ErrConstraintFailed returns when trying to create/update one or more entities and
-// one or more of their constraints failed. For example, violation of edge or field uniqueness.
-type ErrConstraintFailed struct {
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
 	msg  string
 	wrap error
 }
 
 // Error implements the error interface.
-func (e ErrConstraintFailed) Error() string {
-	return fmt.Sprintf("ent: unique constraint failed: %s", e.msg)
+func (e ConstraintError) Error() string {
+	return fmt.Sprintf("ent: constraint failed: %s", e.msg)
 }
 
 // Unwrap implements the errors.Wrapper interface.
-func (e *ErrConstraintFailed) Unwrap() error {
+func (e *ConstraintError) Unwrap() error {
 	return e.wrap
 }
 
-// IsConstraintFailure returns a boolean indicating whether the error is a constraint failure.
-func IsConstraintFailure(err error) bool {
-	_, ok := err.(*ErrConstraintFailed)
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	_, ok := err.(*ConstraintError)
 	return ok
 }
 
-func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
+func isSQLConstraintError(err error) (*ConstraintError, bool) {
 	var (
 		msg = err.Error()
 		// error format per dialect.
@@ -161,11 +162,11 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
 		}
 	)
 	if _, ok := err.(*sqlgraph.ConstraintError); ok {
-		return &ErrConstraintFailed{msg, err}, true
+		return &ConstraintError{msg, err}, true
 	}
 	for i := range errors {
 		if strings.Contains(msg, errors[i]) {
-			return &ErrConstraintFailed{msg, err}, true
+			return &ConstraintError{msg, err}, true
 		}
 	}
 	return nil, false

examples/traversal/ent/group_create.go

@@ -155,9 +155,7 @@ func (gc *GroupCreate) sqlSave(ctx context.Context) (*Group, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	gr.ID = int(id)
-
 	return gr, nil
 }

examples/traversal/ent/pet_create.go

@@ -155,9 +155,7 @@ func (pc *PetCreate) sqlSave(ctx context.Context) (*Pet, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	pe.ID = int(id)
-
 	return pe, nil
 }

examples/traversal/ent/user_create.go

@@ -249,9 +249,7 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		}
 		return nil, err
 	}
-
 	id := spec.ID.Value.(int64)
 	u.ID = int(id)
-
 	return u, nil
 }

examples/traversal/ent/user_update.go

@@ -333,7 +333,7 @@ func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(uu.pets) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uu.pets))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uu.pets))})
 			}
 		}
 	}
@@ -436,7 +436,7 @@ func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
 				return 0, rollback(tx, err)
 			}
 			if int(affected) < len(uu.manage) {
-				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"manage\" %v already connected to a different \"User\"", keys(uu.manage))})
+				return 0, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"manage\" %v already connected to a different \"User\"", keys(uu.manage))})
 			}
 		}
 	}
@@ -762,7 +762,7 @@ func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(uuo.pets) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uuo.pets))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uuo.pets))})
 			}
 		}
 	}
@@ -865,7 +865,7 @@ func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
 				return nil, rollback(tx, err)
 			}
 			if int(affected) < len(uuo.manage) {
-				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"manage\" %v already connected to a different \"User\"", keys(uuo.manage))})
+				return nil, rollback(tx, &ConstraintError{msg: fmt.Sprintf("one of \"manage\" %v already connected to a different \"User\"", keys(uuo.manage))})
 			}
 		}
 	}