surrealpatch/util/fncs/model.go
Tobie Morgan Hitchcock 1a0c8b018f Error when accessing table with undefined param
When using the SQL table() function to define a table with an undefined paramater `table($undefined)`, the database would attempt to access a nil table, and would eventually crash.
2018-09-25 09:43:04 +01:00

55 lines
1.3 KiB
Go

// Copyright © 2016 Abcum Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package fncs
import (
"context"
"github.com/abcum/surreal/mem"
"github.com/abcum/surreal/sql"
)
func model(ctx context.Context, args ...interface{}) (interface{}, error) {
tb, _ := ensureString(args[0])
if len(tb) == 0 {
return nil, mem.ErrorTBNotFound
}
switch len(args) {
case 2:
if max, ok := ensureFloat(args[1]); ok {
return sql.NewModel(tb, 0, 0, max), nil
}
case 3:
if min, ok := ensureFloat(args[1]); ok {
if max, ok := ensureFloat(args[2]); ok {
return sql.NewModel(tb, min, 1, max), nil
}
}
case 4:
if min, ok := ensureFloat(args[1]); ok {
if inc, ok := ensureFloat(args[2]); ok {
if max, ok := ensureFloat(args[3]); ok {
return sql.NewModel(tb, min, inc, max), nil
}
}
}
}
return nil, nil
}