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entc/gen: move node creation to sqlgraph

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This commit is contained in:
Ariel Mashraki
2019-12-16 16:55:20 +02:00
parent 5e9d13be97
commit c6800a3869
71 changed files with 2524 additions and 1838 deletions
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4
examples/o2m2types/ent/ent.go
View File

@@ -13,6 +13,7 @@ import (
"github.com/facebookincubator/ent/dialect"
"github.com/facebookincubator/ent/dialect/sql"
"github.com/facebookincubator/ent/dialect/sql/sqlgraph"
)
// Order applies an ordering on either graph traversal or sql selector.
@@ -159,6 +160,9 @@ func isSQLConstraintError(err error) (*ErrConstraintFailed, bool) {
"duplicate key value violates unique constraint", // PostgreSQL.
}
)
if _, ok := err.(*sqlgraph.ConstraintError); ok {
return &ErrConstraintFailed{msg, err}, true
}
for i := range errors {
if strings.Contains(msg, errors[i]) {
return &ErrConstraintFailed{msg, err}, true

67
examples/o2m2types/ent/pet_create.go
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@@ -10,8 +10,10 @@ import (
"context"
"errors"
"github.com/facebookincubator/ent/dialect/sql"
"github.com/facebookincubator/ent/dialect/sql/sqlgraph"
"github.com/facebookincubator/ent/examples/o2m2types/ent/pet"
"github.com/facebookincubator/ent/examples/o2m2types/ent/user"
"github.com/facebookincubator/ent/schema/field"
)
// PetCreate is the builder for creating a Pet entity.
@@ -71,38 +73,51 @@ func (pc *PetCreate) SaveX(ctx context.Context) *Pet {
func (pc *PetCreate) sqlSave(ctx context.Context) (*Pet, error) {
var (
res sql.Result
builder = sql.Dialect(pc.driver.Dialect())
pe = &Pet{config: pc.config}
pe = &Pet{config: pc.config}
spec = &sqlgraph.CreateSpec{
Table: pet.Table,
ID: &sqlgraph.FieldSpec{
Type: field.TypeInt,
Column: pet.FieldID,
},
}
)
tx, err := pc.driver.Tx(ctx)
if err != nil {
return nil, err
}
insert := builder.Insert(pet.Table).Default()
if value := pc.name; value != nil {
insert.Set(pet.FieldName, *value)
spec.Fields = append(spec.Fields, &sqlgraph.FieldSpec{
Type: field.TypeString,
Value: *value,
Column: pet.FieldName,
})
pe.Name = *value
}
id, err := insertLastID(ctx, tx, insert.Returning(pet.FieldID))
if err != nil {
return nil, rollback(tx, err)
}
pe.ID = int(id)
if len(pc.owner) > 0 {
for eid := range pc.owner {
query, args := builder.Update(pet.OwnerTable).
Set(pet.OwnerColumn, eid).
Where(sql.EQ(pet.FieldID, id)).
Query()
if err := tx.Exec(ctx, query, args, &res); err != nil {
return nil, rollback(tx, err)
}
if nodes := pc.owner; len(nodes) > 0 {
edge := &sqlgraph.EdgeSpec{
Rel: sqlgraph.M2O,
Inverse: true,
Table: pet.OwnerTable,
Columns: []string{pet.OwnerColumn},
Bidi: false,
Target: &sqlgraph.EdgeTarget{
IDSpec: &sqlgraph.FieldSpec{
Type: field.TypeInt,
Column: user.FieldID,
},
},
}
for k, _ := range nodes {
edge.Target.Nodes = append(edge.Target.Nodes, k)
}
spec.Edges = append(spec.Edges, edge)
}
if err := tx.Commit(); err != nil {
if err := sqlgraph.CreateNode(ctx, pc.driver, spec); err != nil {
if cerr, ok := isSQLConstraintError(err); ok {
err = cerr
}
return nil, err
}
id := spec.ID.Value.(int64)
pe.ID = int(id)
return pe, nil
}

82
examples/o2m2types/ent/user_create.go
View File

@@ -9,11 +9,11 @@ package ent
import (
"context"
"errors"
"fmt"
"github.com/facebookincubator/ent/dialect/sql"
"github.com/facebookincubator/ent/dialect/sql/sqlgraph"
"github.com/facebookincubator/ent/examples/o2m2types/ent/pet"
"github.com/facebookincubator/ent/examples/o2m2types/ent/user"
"github.com/facebookincubator/ent/schema/field"
)
// UserCreate is the builder for creating a User entity.
@@ -78,51 +78,59 @@ func (uc *UserCreate) SaveX(ctx context.Context) *User {
func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
var (
res sql.Result
builder = sql.Dialect(uc.driver.Dialect())
u = &User{config: uc.config}
u = &User{config: uc.config}
spec = &sqlgraph.CreateSpec{
Table: user.Table,
ID: &sqlgraph.FieldSpec{
Type: field.TypeInt,
Column: user.FieldID,
},
}
)
tx, err := uc.driver.Tx(ctx)
if err != nil {
return nil, err
}
insert := builder.Insert(user.Table).Default()
if value := uc.age; value != nil {
insert.Set(user.FieldAge, *value)
spec.Fields = append(spec.Fields, &sqlgraph.FieldSpec{
Type: field.TypeInt,
Value: *value,
Column: user.FieldAge,
})
u.Age = *value
}
if value := uc.name; value != nil {
insert.Set(user.FieldName, *value)
spec.Fields = append(spec.Fields, &sqlgraph.FieldSpec{
Type: field.TypeString,
Value: *value,
Column: user.FieldName,
})
u.Name = *value
}
id, err := insertLastID(ctx, tx, insert.Returning(user.FieldID))
if err != nil {
return nil, rollback(tx, err)
if nodes := uc.pets; len(nodes) > 0 {
edge := &sqlgraph.EdgeSpec{
Rel: sqlgraph.O2M,
Inverse: false,
Table: user.PetsTable,
Columns: []string{user.PetsColumn},
Bidi: false,
Target: &sqlgraph.EdgeTarget{
IDSpec: &sqlgraph.FieldSpec{
Type: field.TypeInt,
Column: pet.FieldID,
},
},
}
for k, _ := range nodes {
edge.Target.Nodes = append(edge.Target.Nodes, k)
}
spec.Edges = append(spec.Edges, edge)
}
u.ID = int(id)
if len(uc.pets) > 0 {
p := sql.P()
for eid := range uc.pets {
p.Or().EQ(pet.FieldID, eid)
if err := sqlgraph.CreateNode(ctx, uc.driver, spec); err != nil {
if cerr, ok := isSQLConstraintError(err); ok {
err = cerr
}
query, args := builder.Update(user.PetsTable).
Set(user.PetsColumn, id).
Where(sql.And(p, sql.IsNull(user.PetsColumn))).
Query()
if err := tx.Exec(ctx, query, args, &res); err != nil {
return nil, rollback(tx, err)
}
affected, err := res.RowsAffected()
if err != nil {
return nil, rollback(tx, err)
}
if int(affected) < len(uc.pets) {
return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uc.pets))})
}
}
if err := tx.Commit(); err != nil {
return nil, err
}
id := spec.ID.Value.(int64)
u.ID = int(id)
return u, nil
}