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package bun
import (
"context"
"database/sql"
"github.com/uptrace/bun/internal"
"github.com/uptrace/bun/schema"
)
type DropIndexQuery struct {
baseQuery
cascadeQuery
concurrently bool
ifExists bool
index schema.QueryWithArgs
comment string
}
var _ Query = (*DropIndexQuery)(nil)
func NewDropIndexQuery(db *DB) *DropIndexQuery {
q := &DropIndexQuery{
baseQuery: baseQuery{
db: db,
},
}
return q
}
func (q *DropIndexQuery) Conn(db IConn) *DropIndexQuery {
q.setConn(db)
return q
}
func (q *DropIndexQuery) Model(model interface{}) *DropIndexQuery {
q.setModel(model)
return q
}
func (q *DropIndexQuery) Err(err error) *DropIndexQuery {
q.setErr(err)
return q
}
//------------------------------------------------------------------------------
func (q *DropIndexQuery) Concurrently() *DropIndexQuery {
q.concurrently = true
return q
}
func (q *DropIndexQuery) IfExists() *DropIndexQuery {
q.ifExists = true
return q
}
func (q *DropIndexQuery) Cascade() *DropIndexQuery {
q.cascade = true
return q
}
func (q *DropIndexQuery) Restrict() *DropIndexQuery {
q.restrict = true
return q
}
func (q *DropIndexQuery) Index(query string, args ...interface{}) *DropIndexQuery {
q.index = schema.SafeQuery(query, args)
return q
}
//------------------------------------------------------------------------------
// Comment adds a comment to the query, wrapped by /* ... */.
func (q *DropIndexQuery) Comment(comment string) *DropIndexQuery {
q.comment = comment
return q
}
//------------------------------------------------------------------------------
func (q *DropIndexQuery) Operation() string {
return "DROP INDEX"
}
func (q *DropIndexQuery) AppendQuery(fmter schema.Formatter, b []byte) (_ []byte, err error) {
if q.err != nil {
return nil, q.err
}
b = appendComment(b, q.comment)
b = append(b, "DROP INDEX "...)
if q.concurrently {
b = append(b, "CONCURRENTLY "...)
}
if q.ifExists {
b = append(b, "IF EXISTS "...)
}
b, err = q.index.AppendQuery(fmter, b)
if err != nil {
return nil, err
}
b = q.appendCascade(fmter, b)
return b, nil
}
//------------------------------------------------------------------------------
func (q *DropIndexQuery) Exec(ctx context.Context, dest ...interface{}) (sql.Result, error) {
queryBytes, err := q.AppendQuery(q.db.fmter, q.db.makeQueryBytes())
if err != nil {
return nil, err
}
query := internal.String(queryBytes)
res, err := q.exec(ctx, q, query)
if err != nil {
return nil, err
}
return res, nil
}
|
