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fix statement.LimitN(0) will delete or update all data #1119

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fix statement.LimitN(0) will delete or update all data #1119

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yifhao
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@yifhao yifhao commented Oct 17, 2018

change LimitN from int to *int.

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yifhao commented Oct 17, 2018

#1117

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codecov-io commented Oct 17, 2018 •
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Codecov Report

Merging #1119 into master will decrease coverage by 0.01%.
The diff coverage is 57.14%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master    #1119      +/-   ##
==========================================
- Coverage   54.64%   54.63%   -0.02%     
==========================================
  Files          42       42              
  Lines        7640     7649       +9     
==========================================
+ Hits         4175     4179       +4     
- Misses       2937     2940       +3     
- Partials      528      530       +2
Impacted Files Coverage Δ
session_iterate.go 80% <100%> (ø) ⬆️
session_delete.go 58.86% <20%> (-0.12%) ⬇️
statement.go 66.75% <47.05%> (-0.14%) ⬇️
session_update.go 52.69% <71.42%> (+0.15%) ⬆️
xorm.go 64.61% <0%> (-1.54%) ⬇️

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@lunny lunny added this to the 0.8 milestone Oct 17, 2018
BetaCat0
BetaCat0 reviewed Oct 17, 2018
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statement.go
@@ -689,7 +689,7 @@ func (statement *Statement) Top(limit int) *Statement {

// Limit generate LIMIT start, limit statement
func (statement *Statement) Limit(limit int, start ...int) *Statement {
statement.LimitN = limit
statement.LimitN = &limit
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@BetaCat0 BetaCat0 Oct 17, 2018 •
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I think statement.LimitN here will never get a nil val since you've already passed an non-pointer value within param limit. Furthermore, you should also write some cases to test your code.

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if limit > 0

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@BetaCat0 BetaCat0 Oct 17, 2018 •
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And maybe we still need an extra param to indicate that the value "0" in param limit is specified intentionally or not(considering using a bool param?).

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a critical bug, it did delete all my table data, but i just want to delete none

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@Frank-hust I will accept your PR, could you please resolve the conflict and add some tests for it?

mei-rune pushed a commit to mei-rune/xorm that referenced this pull request Apr 19, 2020
@lunny @ningmeng520
@yudppp @BetaCat0
fix statement.LimitN(0) will delete or update all data (go-xorm#1119)
6dfe337 
fix test

fix nil pointer

fix statement.Limit(0) will update or delete all data

fix bug when buffersize with iterate (go-xorm#941)

Merge branch 'master' into lunny/fix_buffer_iterate

Exclude schema from index name (#1505)

Merge branch 'master' into fix-schema-idx

SetExpr support more go types (#1499)

Improve tests

SetExpr support more go types

fix vet

fix drone lint

remove go1.10 test on drone

Reviewed-on: https://gitea.com/xorm/xorm/pulls/1499

fix vet

fix drone lint

remove go1.10 test on drone

Exclude schema from the index name

Co-authored-by: Guillermo Prandi <[email protected]>
Co-authored-by: Lunny Xiao <[email protected]>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/1505

fix test

fix bug

fix bug when buffersize with iterate

SetExpr support more go types (#1499)

Improve tests

SetExpr support more go types

fix vet

fix drone lint

remove go1.10 test on drone

Reviewed-on: https://gitea.com/xorm/xorm/pulls/1499

fix vet

fix drone lint

remove go1.10 test on drone

Fix update with Alias (go-xorm#1455)

Co-authored-by: Guillermo Prandi <[email protected]>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/941

fix update map with version (go-xorm#1448)

fix test

fix update map with version

SetExpr support more go types (#1499)

Improve tests

SetExpr support more go types

fix vet

fix drone lint

remove go1.10 test on drone

Reviewed-on: https://gitea.com/xorm/xorm/pulls/1499

fix vet

fix drone lint

remove go1.10 test on drone

Fix update with Alias (go-xorm#1455)

Reviewed-on: https://gitea.com/xorm/xorm/pulls/1448

Exclude schema from index name (#1505)

Merge branch 'master' into fix-schema-idx

SetExpr support more go types (#1499)

Improve tests

SetExpr support more go types

fix vet

fix drone lint

remove go1.10 test on drone

Reviewed-on: https://gitea.com/xorm/xorm/pulls/1499

fix vet

fix drone lint

remove go1.10 test on drone

Exclude schema from the index name

Co-authored-by: Guillermo Prandi <[email protected]>
Co-authored-by: Lunny Xiao <[email protected]>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/1505

SetExpr support more go types (#1499)

Improve tests

SetExpr support more go types

fix vet

fix drone lint

remove go1.10 test on drone

Reviewed-on: https://gitea.com/xorm/xorm/pulls/1499

fix vet

fix drone lint

remove go1.10 test on drone

Fix update with Alias (go-xorm#1455)

Improve ci tests (#1477)

Rewrite Engine.QuoteTo() to accept multi-part identifiers (#1476)

Support local sql log (go-xorm#1338)

Fix go mod and update version (go-xorm#1460)

Move github.com/go-xorm/xorm to xorm.io/xorm (go-xorm#1459)

add support custom type Nullfloat64 (go-xorm#1450)

fix bug when query map condtion with no quote (go-xorm#1449)

Don't warn when bool column default is 1 but not true (go-xorm#1447)

* don't warn when bool column default is 1 but not true

* fix default case sensitive

Fix sync2 with custom table name (go-xorm#1445)

* fix sync2 with custom table name

* fix bug on postgres

* fix bug on postgres

fix bug when update with setexpr (go-xorm#1446)

add tidb tests on drone ci (go-xorm#1444)

improve sync2 (go-xorm#1443)

Fix wrong dbmetas (go-xorm#1442)

* add tests for db metas

* add more tests

* fix bug on mssql

Fix default value parse bugs (go-xorm#1437)

* fix default value

* fix default value tags

* fix postgres default

* fix default on postgres

* fix default on postgres

* fix mssql default

fix arg conversion (go-xorm#1441)

* fix arg conversion

* fix bugs

* fix bug on postgres

* use traditional positional parameters on insert into select

* remove unnecessary tests

upgrade core (go-xorm#1440)

add tests (go-xorm#1439)

add go1.13 tests on drone (go-xorm#1416)

Fix bug on insert where (go-xorm#1436)

* fix bug on insert where

* fix bug

* fix lint

fix bug when insert multiple slices with customize table name (go-xorm#1433)

* fix bug when insert multiple slices with customize table name

* fix tests on mssql

* fix tests

fix insert where with bool bug on mssql (go-xorm#1432)

fix setexpr missing big quotes (go-xorm#1431)

* fix setexpr missing big quotes

* fix tests

* fix tests

Add support subquery on SetExpr (go-xorm#1428)

* add support subquery on SetExpr

* fix tests

fix go mod (go-xorm#1427)

fix tests (go-xorm#1429)

Use strings.Builder instead of builder.StringBuilder (go-xorm#1417)

* use strings.Builder instead of builder.StringBuilder

* fix dependency

* fix dependency

Remove unuse get cols code (go-xorm#1413)

Add mssql ci test (go-xorm#1410)

* add mssql ci test

* fix drone test

Add insert select where support (go-xorm#1401)

Use drone new format (go-xorm#1388)

* use drone new format
fix get customize type bug (go-xorm#1382)

fix bugs (go-xorm#1375)

update drone (go-xorm#1374)

Add tests for get var (go-xorm#1305)

* add test for SQL get
* fix tests

fix error when get null var (go-xorm#890)

* fix error when get null var
* add support get for null var
* fix bug

Remove quotestr totally (go-xorm#1366)

* remove QuoteStr() totally

* update xorm.core -> v0.7.0

* update dialect Quote

remove QuoteStr() usage in dialects (go-xorm#1364)

document of FindAndCount() (go-xorm#1365)

remove QuoteStr() usage (go-xorm#1360)

Co-authored-by: yifhao <[email protected]>
Co-authored-by: yifhao <[email protected]>
Co-authored-by: Guillermo Prandi <[email protected]>
Co-authored-by: Guillermo Prandi <guillep2k@[email protected]>
Co-authored-by: yudppp <[email protected]>
Co-authored-by: BetaCat <[email protected]>
Reviewed-on: https://gitea.com/xorm/xorm/pulls/1119
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@yifhao @codecov-io @lunny @BetaCat0 @ningmeng520