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Merge pull request #1315 from xcoulon/patch-1

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Clarification on `DB.First(...)` method
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Jinzhu 2017-01-16 23:30:12 +08:00 committed by GitHub
commit dd88cb9708
1 changed files with 5 additions and 2 deletions
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documents/crud.md
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@ -68,7 +68,7 @@ db.Last(&user)
db.Find(&users) db.Find(&users)
//// SELECT * FROM users; //// SELECT * FROM users;
// Get record with primary key // Get record with primary key (only works for integer primary key)
db.First(&user, 10) db.First(&user, 10)
//// SELECT * FROM users WHERE id = 10; //// SELECT * FROM users WHERE id = 10;
``` ```
@ -150,9 +150,12 @@ db.Not(User{Name: "jinzhu"}).First(&user)
**NOTE** When query with primary key, you should carefully check the value you passed is a valid primary key, to avoid SQL injection **NOTE** When query with primary key, you should carefully check the value you passed is a valid primary key, to avoid SQL injection
```go ```go
// Get by primary key // Get by primary key (only works for integer primary key)
db.First(&user, 23) db.First(&user, 23)
//// SELECT * FROM users WHERE id = 23 LIMIT 1; //// SELECT * FROM users WHERE id = 23 LIMIT 1;
// Get by primary key if it were a non-integer type
db.First(&user, "id=?", 23)
//// SELECT * FROM users WHERE id = 23 LIMIT 1;
// Plain SQL // Plain SQL
db.Find(&user, "name = ?", "jinzhu") db.Find(&user, "name = ?", "jinzhu")