schema/field: json type support (#38)

Summary:
Pull Request resolved: https://github.com/facebookincubator/ent/pull/38

Only `IsNil` and `NotNil` predicates are supported this moment

Reviewed By: alexsn

Differential Revision: D17444976

fbshipit-source-id: 37336fa0bc7749af995933baee2e23bb7366dd78

examples/m2m2types/ent/group/where.go

@@ -7,9 +7,8 @@
 package group
 
 import (
-	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
-
 	"github.com/facebookincubator/ent/dialect/sql"
+	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
 )
 
 // ID filters vertices based on their identifier.

examples/m2m2types/ent/group_create.go

@@ -10,9 +10,8 @@ import (
 	"context"
 	"errors"
 
-	"github.com/facebookincubator/ent/examples/m2m2types/ent/group"
-
 	"github.com/facebookincubator/ent/dialect/sql"
+	"github.com/facebookincubator/ent/examples/m2m2types/ent/group"
 )
 
 // GroupCreate is the builder for creating a Group entity.
@@ -75,9 +74,9 @@ func (gc *GroupCreate) sqlSave(ctx context.Context) (*Group, error) {
 		return nil, err
 	}
 	builder := sql.Insert(group.Table).Default(gc.driver.Dialect())
-	if gc.name != nil {
-		builder.Set(group.FieldName, *gc.name)
-		gr.Name = *gc.name
+	if value := gc.name; value != nil {
+		builder.Set(group.FieldName, *value)
+		gr.Name = *value
 	}
 	query, args := builder.Query()
 	if err := tx.Exec(ctx, query, args, &res); err != nil {

examples/m2m2types/ent/group_delete.go

@@ -9,10 +9,9 @@ package ent
 import (
 	"context"
 
+	"github.com/facebookincubator/ent/dialect/sql"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/group"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
-
-	"github.com/facebookincubator/ent/dialect/sql"
 )
 
 // GroupDelete is the builder for deleting a Group entity.

examples/m2m2types/ent/group_query.go

@@ -12,11 +12,10 @@ import (
 	"fmt"
 	"math"
 
+	"github.com/facebookincubator/ent/dialect/sql"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/group"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/user"
-
-	"github.com/facebookincubator/ent/dialect/sql"
 )
 
 // GroupQuery is the builder for querying Group entities.

examples/m2m2types/ent/group_update.go

@@ -10,10 +10,9 @@ import (
 	"context"
 	"fmt"
 
+	"github.com/facebookincubator/ent/dialect/sql"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/group"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
-
-	"github.com/facebookincubator/ent/dialect/sql"
 )
 
 // GroupUpdate is the builder for updating Group entities.
@@ -132,15 +131,13 @@ func (gu *GroupUpdate) sqlSave(ctx context.Context) (n int, err error) {
 		return 0, err
 	}
 	var (
-		update  bool
 		res     sql.Result
 		builder = sql.Update(group.Table).Where(sql.InInts(group.FieldID, ids...))
 	)
 	if value := gu.name; value != nil {
-		update = true
 		builder.Set(group.FieldName, *value)
 	}
-	if update {
+	if !builder.Empty() {
 		query, args := builder.Query()
 		if err := tx.Exec(ctx, query, args, &res); err != nil {
 			return 0, rollback(tx, err)
@@ -295,16 +292,14 @@ func (guo *GroupUpdateOne) sqlSave(ctx context.Context) (gr *Group, err error) {
 		return nil, err
 	}
 	var (
-		update  bool
 		res     sql.Result
 		builder = sql.Update(group.Table).Where(sql.InInts(group.FieldID, ids...))
 	)
 	if value := guo.name; value != nil {
-		update = true
 		builder.Set(group.FieldName, *value)
 		gr.Name = *value
 	}
-	if update {
+	if !builder.Empty() {
 		query, args := builder.Query()
 		if err := tx.Exec(ctx, query, args, &res); err != nil {
 			return nil, rollback(tx, err)

examples/m2m2types/ent/user/where.go

@@ -7,9 +7,8 @@
 package user
 
 import (
-	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
-
 	"github.com/facebookincubator/ent/dialect/sql"
+	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
 )
 
 // ID filters vertices based on their identifier.

examples/m2m2types/ent/user_create.go

@@ -10,9 +10,8 @@ import (
 	"context"
 	"errors"
 
-	"github.com/facebookincubator/ent/examples/m2m2types/ent/user"
-
 	"github.com/facebookincubator/ent/dialect/sql"
+	"github.com/facebookincubator/ent/examples/m2m2types/ent/user"
 )
 
 // UserCreate is the builder for creating a User entity.
@@ -85,13 +84,13 @@ func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
 		return nil, err
 	}
 	builder := sql.Insert(user.Table).Default(uc.driver.Dialect())
-	if uc.age != nil {
-		builder.Set(user.FieldAge, *uc.age)
-		u.Age = *uc.age
+	if value := uc.age; value != nil {
+		builder.Set(user.FieldAge, *value)
+		u.Age = *value
 	}
-	if uc.name != nil {
-		builder.Set(user.FieldName, *uc.name)
-		u.Name = *uc.name
+	if value := uc.name; value != nil {
+		builder.Set(user.FieldName, *value)
+		u.Name = *value
 	}
 	query, args := builder.Query()
 	if err := tx.Exec(ctx, query, args, &res); err != nil {

examples/m2m2types/ent/user_delete.go

@@ -9,10 +9,9 @@ package ent
 import (
 	"context"
 
+	"github.com/facebookincubator/ent/dialect/sql"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/user"
-
-	"github.com/facebookincubator/ent/dialect/sql"
 )
 
 // UserDelete is the builder for deleting a User entity.

examples/m2m2types/ent/user_query.go

@@ -12,11 +12,10 @@ import (
 	"fmt"
 	"math"
 
+	"github.com/facebookincubator/ent/dialect/sql"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/group"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/user"
-
-	"github.com/facebookincubator/ent/dialect/sql"
 )
 
 // UserQuery is the builder for querying User entities.

examples/m2m2types/ent/user_update.go

@@ -10,10 +10,9 @@ import (
 	"context"
 	"fmt"
 
+	"github.com/facebookincubator/ent/dialect/sql"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/predicate"
 	"github.com/facebookincubator/ent/examples/m2m2types/ent/user"
-
-	"github.com/facebookincubator/ent/dialect/sql"
 )
 
 // UserUpdate is the builder for updating User entities.
@@ -146,23 +145,19 @@ func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
 		return 0, err
 	}
 	var (
-		update  bool
 		res     sql.Result
 		builder = sql.Update(user.Table).Where(sql.InInts(user.FieldID, ids...))
 	)
 	if value := uu.age; value != nil {
-		update = true
 		builder.Set(user.FieldAge, *value)
 	}
 	if value := uu.addage; value != nil {
-		update = true
 		builder.Add(user.FieldAge, *value)
 	}
 	if value := uu.name; value != nil {
-		update = true
 		builder.Set(user.FieldName, *value)
 	}
-	if update {
+	if !builder.Empty() {
 		query, args := builder.Query()
 		if err := tx.Exec(ctx, query, args, &res); err != nil {
 			return 0, rollback(tx, err)
@@ -331,26 +326,22 @@ func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
 		return nil, err
 	}
 	var (
-		update  bool
 		res     sql.Result
 		builder = sql.Update(user.Table).Where(sql.InInts(user.FieldID, ids...))
 	)
 	if value := uuo.age; value != nil {
-		update = true
 		builder.Set(user.FieldAge, *value)
 		u.Age = *value
 	}
 	if value := uuo.addage; value != nil {
-		update = true
 		builder.Add(user.FieldAge, *value)
 		u.Age += *value
 	}
 	if value := uuo.name; value != nil {
-		update = true
 		builder.Set(user.FieldName, *value)
 		u.Name = *value
 	}
-	if update {
+	if !builder.Empty() {
 		query, args := builder.Query()
 		if err := tx.Exec(ctx, query, args, &res); err != nil {
 			return nil, rollback(tx, err)