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delete.go
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delete.go
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package dent
import (
"context"
"entgo.io/ent/dialect/sql"
"entgo.io/ent/dialect/sql/sqlgraph"
"entgo.io/ent/schema/field"
)
// DDelete is the builder for deleting a Dynamic entity.
type DDelete struct {
mutation *DMutation
}
// Where appends a list predicates to the DDelete builder.
func (dd *DDelete) Where(ps ...Predicate) *DDelete {
dd.mutation.Where(ps...)
return dd
}
// Exec executes the deletion query and returns how many vertices were deleted.
func (dd *DDelete) Exec(ctx context.Context) (int, error) {
return dd.sqlExec(ctx)
}
// ExecX is like Exec, but panics if an error occurs.
func (dd *DDelete) ExecX(ctx context.Context) int {
n, err := dd.Exec(ctx)
if err != nil {
panic(err)
}
return n
}
func (dd *DDelete) sqlExec(ctx context.Context) (int, error) {
_spec := &sqlgraph.DeleteSpec{
Node: &sqlgraph.NodeSpec{
Table: dd.mutation.table.Name,
ID: &sqlgraph.FieldSpec{
Type: field.TypeInt,
Column: FieldID,
},
},
}
if ps := dd.mutation.predicates; len(ps) > 0 {
_spec.Predicate = func(selector *sql.Selector) {
for i := range ps {
ps[i](selector)
}
}
}
affected, err := sqlgraph.DeleteNodes(ctx, dd.mutation.table.driver, _spec)
if err != nil && sqlgraph.IsConstraintError(err) {
err = &ConstraintError{msg: err.Error(), wrap: err}
}
return affected, err
}
// DDeleteOne is the builder for deleting a single Dynamic entity.
type DDeleteOne struct {
dd *DDelete
}
// Exec executes the deletion query.
func (ddo *DDeleteOne) Exec(ctx context.Context) error {
n, err := ddo.dd.Exec(ctx)
switch {
case err != nil:
return err
case n == 0:
return &NotFoundError{ddo.dd.mutation.table.Name}
default:
return nil
}
}
// ExecX is like Exec, but panics if an error occurs.
func (ddo *DDeleteOne) ExecX(ctx context.Context) {
ddo.dd.ExecX(ctx)
}