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// Copyright 2019-present Facebook Inc. All rights reserved.
// This source code is licensed under the Apache 2.0 license found
// in the LICENSE file in the root directory of this source tree.
// Code generated by entc, DO NOT EDIT.
package ent
import (
"context"
"fmt"
"github.com/facebook/ent/dialect/gremlin"
"github.com/facebook/ent/dialect/gremlin/graph/dsl"
"github.com/facebook/ent/dialect/gremlin/graph/dsl/__"
"github.com/facebook/ent/dialect/gremlin/graph/dsl/g"
"github.com/facebook/ent/dialect/gremlin/graph/dsl/p"
"github.com/facebook/ent/entc/integration/gremlin/ent/node"
)
// NodeCreate is the builder for creating a Node entity.
type NodeCreate struct {
config
mutation *NodeMutation
hooks []Hook
}
// SetValue sets the "value" field.
func (nc *NodeCreate) SetValue(i int) *NodeCreate {
nc.mutation.SetValue(i)
return nc
}
// SetNillableValue sets the "value" field if the given value is not nil.
func (nc *NodeCreate) SetNillableValue(i *int) *NodeCreate {
if i != nil {
nc.SetValue(*i)
}
return nc
}
// SetPrevID sets the "prev" edge to the Node entity by ID.
func (nc *NodeCreate) SetPrevID(id string) *NodeCreate {
nc.mutation.SetPrevID(id)
return nc
}
// SetNillablePrevID sets the "prev" edge to the Node entity by ID if the given value is not nil.
func (nc *NodeCreate) SetNillablePrevID(id *string) *NodeCreate {
if id != nil {
nc = nc.SetPrevID(*id)
}
return nc
}
// SetPrev sets the "prev" edge to the Node entity.
func (nc *NodeCreate) SetPrev(n *Node) *NodeCreate {
return nc.SetPrevID(n.ID)
}
// SetNextID sets the "next" edge to the Node entity by ID.
func (nc *NodeCreate) SetNextID(id string) *NodeCreate {
nc.mutation.SetNextID(id)
return nc
}
// SetNillableNextID sets the "next" edge to the Node entity by ID if the given value is not nil.
func (nc *NodeCreate) SetNillableNextID(id *string) *NodeCreate {
if id != nil {
nc = nc.SetNextID(*id)
}
return nc
}
// SetNext sets the "next" edge to the Node entity.
func (nc *NodeCreate) SetNext(n *Node) *NodeCreate {
return nc.SetNextID(n.ID)
}
// Mutation returns the NodeMutation object of the builder.
func (nc *NodeCreate) Mutation() *NodeMutation {
return nc.mutation
}
// Save creates the Node in the database.
func (nc *NodeCreate) Save(ctx context.Context) (*Node, error) {
var (
err error
node *Node
)
if len(nc.hooks) == 0 {
if err = nc.check(); err != nil {
return nil, err
}
node, err = nc.gremlinSave(ctx)
} else {
var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
mutation, ok := m.(*NodeMutation)
if !ok {
return nil, fmt.Errorf("unexpected mutation type %T", m)
}
if err = nc.check(); err != nil {
return nil, err
}
nc.mutation = mutation
node, err = nc.gremlinSave(ctx)
mutation.done = true
return node, err
})
for i := len(nc.hooks) - 1; i >= 0; i-- {
mut = nc.hooks[i](mut)
}
if _, err := mut.Mutate(ctx, nc.mutation); err != nil {
return nil, err
}
}
return node, err
}
// SaveX calls Save and panics if Save returns an error.
func (nc *NodeCreate) SaveX(ctx context.Context) *Node {
v, err := nc.Save(ctx)
if err != nil {
panic(err)
}
return v
}
// check runs all checks and user-defined validators on the builder.
func (nc *NodeCreate) check() error {
return nil
}
func (nc *NodeCreate) gremlinSave(ctx context.Context) (*Node, error) {
res := &gremlin.Response{}
query, bindings := nc.gremlin().Query()
if err := nc.driver.Exec(ctx, query, bindings, res); err != nil {
return nil, err
}
if err, ok := isConstantError(res); ok {
return nil, err
}
n := &Node{config: nc.config}
if err := n.FromResponse(res); err != nil {
return nil, err
}
return n, nil
}
func (nc *NodeCreate) gremlin() *dsl.Traversal {
type constraint struct {
pred *dsl.Traversal // constraint predicate.
test *dsl.Traversal // test matches and its constant.
}
constraints := make([]*constraint, 0, 2)
v := g.AddV(node.Label)
if value, ok := nc.mutation.Value(); ok {
v.Property(dsl.Single, node.FieldValue, value)
}
for _, id := range nc.mutation.PrevIDs() {
v.AddE(node.NextLabel).From(g.V(id)).InV()
constraints = append(constraints, &constraint{
pred: g.E().HasLabel(node.NextLabel).OutV().HasID(id).Count(),
test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(node.Label, node.NextLabel, id)),
})
}
for _, id := range nc.mutation.NextIDs() {
v.AddE(node.NextLabel).To(g.V(id)).OutV()
constraints = append(constraints, &constraint{
pred: g.E().HasLabel(node.NextLabel).InV().HasID(id).Count(),
test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(node.Label, node.NextLabel, id)),
})
}
if len(constraints) == 0 {
return v.ValueMap(true)
}
tr := constraints[0].pred.Coalesce(constraints[0].test, v.ValueMap(true))
for _, cr := range constraints[1:] {
tr = cr.pred.Coalesce(cr.test, tr)
}
return tr
}
// NodeCreateBulk is the builder for creating many Node entities in bulk.
type NodeCreateBulk struct {
config
builders []*NodeCreate
}
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