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v/vlib/orm/README.md

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# ORM
## Attributes
### Structs
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- `[table: 'name']` sets a custom table name
### Fields
- `[primary]` sets the field as the primary key
- `[unique]` sets the field as unique
- `[unique: 'foo']` adds the field to a unique group
- `[skip]` field will be skipped
- `[sql: type]` where `type` is a V type such as `int` or `f64`, or special type `serial`
- `[sql: 'name']` sets a custom column name for the field
- `[sql_type: 'SQL TYPE']` sets the sql type which is used in sql
## Usage
```v ignore
struct Foo {
id int [primary; sql: serial]
name string [nonull]
created_at time.Time [sql_type: 'DATETIME']
updated_at string [sql_type: 'DATETIME']
deleted_at time.Time
}
```
### Create
```v ignore
sql db {
create table Foo
}
```
### Drop
```v ignore
sql db {
drop table Foo
}
```
### Insert
```v ignore
var := Foo{
name: 'abc'
created_at: time.now()
updated_at: time.now().str()
deleted_at: time.now()
}
sql db {
insert var into Foo
}
```
### Update
```v ignore
sql db {
update Foo set name = 'cde' where name == 'abc'
}
```
### Delete
```v ignore
sql db {
delete from Foo where id > 10
}
```
### Select
```v ignore
result := sql db {
select from Foo where id == 1
}
```
```v ignore
result := sql db {
select from Foo where id > 1 limit 5
}
```
```v ignore
result := sql db {
select from Foo where id > 1 order by id
}
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```