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95 lines
2.3 KiB
Go
95 lines
2.3 KiB
Go
// Copyright 2019-present Facebook Inc. All rights reserved.
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// This source code is licensed under the Apache 2.0 license found
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// in the LICENSE file in the root directory of this source tree.
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// Code generated by ent, DO NOT EDIT.
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package ent
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import (
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"context"
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"entgo.io/ent/dialect/gremlin"
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"entgo.io/ent/dialect/gremlin/graph/dsl"
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"entgo.io/ent/dialect/gremlin/graph/dsl/__"
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"entgo.io/ent/dialect/gremlin/graph/dsl/g"
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"entgo.io/ent/entc/integration/gremlin/ent/node"
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"entgo.io/ent/entc/integration/gremlin/ent/predicate"
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)
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// NodeDelete is the builder for deleting a Node entity.
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type NodeDelete struct {
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config
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hooks []Hook
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mutation *NodeMutation
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}
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// Where appends a list predicates to the NodeDelete builder.
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func (nd *NodeDelete) Where(ps ...predicate.Node) *NodeDelete {
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nd.mutation.Where(ps...)
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return nd
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}
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// Exec executes the deletion query and returns how many vertices were deleted.
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func (nd *NodeDelete) Exec(ctx context.Context) (int, error) {
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return withHooks[int, NodeMutation](ctx, nd.gremlinExec, nd.mutation, nd.hooks)
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}
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// ExecX is like Exec, but panics if an error occurs.
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func (nd *NodeDelete) ExecX(ctx context.Context) int {
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n, err := nd.Exec(ctx)
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if err != nil {
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panic(err)
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}
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return n
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}
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func (nd *NodeDelete) gremlinExec(ctx context.Context) (int, error) {
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res := &gremlin.Response{}
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query, bindings := nd.gremlin().Query()
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if err := nd.driver.Exec(ctx, query, bindings, res); err != nil {
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return 0, err
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}
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nd.mutation.done = true
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return res.ReadInt()
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}
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func (nd *NodeDelete) gremlin() *dsl.Traversal {
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t := g.V().HasLabel(node.Label)
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for _, p := range nd.mutation.predicates {
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p(t)
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}
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return t.SideEffect(__.Drop()).Count()
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}
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// NodeDeleteOne is the builder for deleting a single Node entity.
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type NodeDeleteOne struct {
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nd *NodeDelete
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}
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// Where appends a list predicates to the NodeDelete builder.
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func (ndo *NodeDeleteOne) Where(ps ...predicate.Node) *NodeDeleteOne {
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ndo.nd.mutation.Where(ps...)
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return ndo
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}
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// Exec executes the deletion query.
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func (ndo *NodeDeleteOne) Exec(ctx context.Context) error {
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n, err := ndo.nd.Exec(ctx)
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switch {
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case err != nil:
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return err
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case n == 0:
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return &NotFoundError{node.Label}
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default:
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return nil
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}
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}
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// ExecX is like Exec, but panics if an error occurs.
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func (ndo *NodeDeleteOne) ExecX(ctx context.Context) {
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if err := ndo.Exec(ctx); err != nil {
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panic(err)
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}
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}
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