forked from ecodeclub/eorm
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #15 from Stone-afk/dev-new
rows: 同库事务语句合并执行，提前读取所有数据 (ecodeclub#219)
- Loading branch information
Showing
20 changed files
with
468 additions
and
161 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| // Copyright 2021 ecodeclub | ||
| // | ||
| // 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 rows | ||
|
|
||
| import ( | ||
| "database/sql" | ||
|
|
||
| "github.com/ecodeclub/eorm/internal/errs" | ||
| ) | ||
|
|
||
| var _ Rows = (*DataRows)(nil) | ||
|
|
||
| // DataRows 直接传入数据，伪装成了一个 Rows | ||
| // 非线程安全实现 | ||
| type DataRows struct { | ||
| data [][]any | ||
| len int | ||
| columns []string | ||
| columnTypes []*sql.ColumnType | ||
| // 第几行 | ||
| idx int | ||
| } | ||
|
|
||
| func (*DataRows) NextResultSet() bool { | ||
| return false | ||
| } | ||
|
|
||
| func (d *DataRows) ColumnTypes() ([]*sql.ColumnType, error) { | ||
| return d.columnTypes, nil | ||
| } | ||
|
|
||
| func NewDataRows(data [][]any, columns []string, columnTypes []*sql.ColumnType) *DataRows { | ||
| // 这里并没有什么必要检查 data 和 columns 的输入 | ||
| // 因为只有在很故意的情况下，data 和 columns 才可能会有问题 | ||
| return &DataRows{ | ||
| data: data, | ||
| len: len(data), | ||
| columns: columns, | ||
| idx: -1, | ||
| columnTypes: columnTypes, | ||
| } | ||
| } | ||
|
|
||
| func (d *DataRows) Next() bool { | ||
| if d.idx >= d.len-1 { | ||
| return false | ||
| } | ||
| d.idx++ | ||
| return true | ||
| } | ||
|
|
||
| func (d *DataRows) Scan(dest ...any) error { | ||
| // 不需要检测，作为内部代码我们可以预期用户会主动控制 | ||
| data := d.data[d.idx] | ||
| if len(data) != len(dest) { | ||
| return errs.NewErrScanWrongDestinationArguments(len(data), len(dest)) | ||
| } | ||
| for idx, dst := range dest { | ||
| if err := ConvertAssign(dst, data[idx]); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (*DataRows) Close() error { | ||
| return nil | ||
| } | ||
|
|
||
| func (d *DataRows) Columns() ([]string, error) { | ||
| return d.columns, nil | ||
| } | ||
|
|
||
| func (*DataRows) Err() error { | ||
| return nil | ||
| } |
Oops, something went wrong.