This PR adds a `Truncate` method which allows to delete all existing rows in a table. The current `Delete` implementation enforces conditions to prevent accidental data deletion.
Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2220
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: KN4CK3R <kn4ck3r@noreply.gitea.io>
Co-committed-by: KN4CK3R <kn4ck3r@noreply.gitea.io>
When dropping indexes in Postgres if the index is non-regular we
should not attempt to regularise the index name as it is already correct.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2174
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-committed-by: Andrew Thornton <art27@cantab.net>
`insertSelectPlaceholder` is an unexported const set at true. No code changes this nor can any build environment change it.
Therefore we should remove it and the associated dead code.
Close#2146
Signed-off-by: Andrew Thornton <art27@cantab.net>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2151
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-committed-by: Andrew Thornton <art27@cantab.net>
The current mechanism for adding information about indices cannot express the ordering
of the columns in the index or add sorting information.
Here we add a new interface TableIndices which a struct would implement to provide
a slice of *schema.Index to provide additional indices to that gleaned from the tags.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2137
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-committed-by: Andrew Thornton <art27@cantab.net>
MySQL/MariaDB: return max length for text columns using `CHARACTER_MAXIMUM_LENGTH`.
Tests:
* add an integration test: `TestGetColumnsLength`
* update `TestSyncTable3` since `TableInfo` isn't able to provide the column size
Co-authored-by: Pierre-Louis Bonicoli <pierre-louis.bonicoli@libregerbil.fr>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2133
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Pierre-Louis Bonicoli <pilou@noreply.gitea.io>
Co-committed-by: Pierre-Louis Bonicoli <pilou@noreply.gitea.io>
The [oldest unsupported version documentation](https://www.postgresql.org/docs/7.1/sql-comment.html) states that comment on a column is supported.
Update `TestGetColumnsComment` in order to check both MySQL/MariaDB and PostgreSQL.
Co-authored-by: Pierre-Louis Bonicoli <pierre-louis.bonicoli@libregerbil.fr>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2131
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Pierre-Louis Bonicoli <pilou@noreply.gitea.io>
Co-committed-by: Pierre-Louis Bonicoli <pilou@noreply.gitea.io>
ref pr https://gitea.com/xorm/xorm/pulls/2053
i think the previous fix has some issue
for example, i'm using session like this:
```go
// logSessionID == false
engine := NewEngine()
// use ctx.SessionId to distinguish uniq request id
cxt := context.WithValue(parent, log.SessionIDKey, "some unique request id")
session := engine.NewSession().Context(ctx)
```
however, with pr 2053, `session.Context` can't get SessionId from ctx.
this pr fix abrove issue, overwrite `session.Context()` only when `engine.logSessionID == true`
please check it out,thanks!
Co-authored-by: finelog <kaicltw@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2115
Co-authored-by: finelog <finelog@noreply.gitea.io>
Co-committed-by: finelog <finelog@noreply.gitea.io>
when using distinct cols with FindAndCount, reset statement.ColumnMap will make the counting sql an syntax error, this pr try fix this.
is this pr ok for merge?
error sql logging:
```sql
[SQL] SELECT DISTINCT `Fid` FROM `table_demo` WHERE Fkey = ? [val]
[SQL] SELECT count(DISTINCT ) FROM `table_demo` WHERE Fkey = ? [val]
```
after fix:
```sql
[SQL] SELECT DISTINCT `Fid` FROM `table_demo` WHERE Fkey = ? [val]
[SQL] SELECT count(DISTINCT `Fid`) FROM `table_demo` WHERE Fkey = ? [val]
```
Co-authored-by: finelog <kaicltw@gmail.com>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2096
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: finelog <finelog@noreply.gitea.io>
Co-committed-by: finelog <finelog@noreply.gitea.io>
dumpTables currently badly handles BLOB and TEXT data containing control
characters:
* MySQL will interpret and unescape string literals e.g.`\r` will become
carriage return.
* Postgres will not allow string literals to contain NUL nor will
SQLite so BLOBs will not dump correctly.
* Schemas should not be set on the destination dump
* MSSQL needs the N prefix to correctly ensure that UTF-8 data is
correctly transferred.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2091
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-committed-by: Andrew Thornton <art27@cantab.net>
When dumping booleans these need to be converted from the original DB representation
to the new db representation. In the case of most DBs this is simply to 0 or 1 but
for postgres these have to be false or true.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2089
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-committed-by: Andrew Thornton <art27@cantab.net>
The behavior of multi insertion of null differs from that of single insertion.
On the other hand, behavior between single and bulk insertion of null using pointer of struct field is identical.
Please see the example below.
```go
s := engineGroup.NewSession()
type User struct {
ID int `xorm:"not null pk autoincr INT(10)"`
Name string `xorm:"not null VARCHAR(191)"`
Age int64 `xorm:"null BIGINT(20)"`
}
list := []*User{
{
Name: "John",
},
{
Name: "Wick",
},
}
s.Nullable("age")
// Single insertion works
_, err := s.Insert(list[0]) // [table] `user` INSERT INTO `user` (`name`,`age`) VALUES (?, ?) [John <nil>]
s.Nullable("age")
// Bulk insertion does not work
_, err := s.Insert(list) // [table] `user` INSERT INTO `user` (`name,`age`) VALUES (?, ?),(?, ?) [John, 0, Wick, 0]
//---------------------------------
//Using pointer, which is nullable, the generated sql has no difference.
//---------------------------------
type User struct {
ID int `xorm:"not null pk autoincr INT(10)"`
Name string `xorm:"not null VARCHAR(191)"`
Age *int64 `xorm:"null BIGINT(20)"`
}
list := []*User{
{
Name: "John",
},
{
Name: "Wick",
},
}
s.Nullable("age")
// Single insertion works
_, err := s.Insert(list[0]) // [table] `user` INSERT INTO `user` (`name`,`age`) VALUES (?, ?) [John <nil>]
s.Nullable("age")
// Bulk insertion does not work
_, err := s.Insert(list) // [table] `user` INSERT INTO `user` (`name,`age`) VALUES (?, ?),(?, ?) [John, <nil>, Wick, <nil>]
```
Reviewed-on: https://gitea.com/xorm/xorm/pulls/2077
Co-authored-by: satorunooshie <satorunooshie@noreply.gitea.io>
Co-committed-by: satorunooshie <satorunooshie@noreply.gitea.io>
Andrew Thornton
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