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v/vlib/orm/orm_test.v

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// import os
// import pg
// import term
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import time
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import sqlite
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struct Module {
id int [primary; sql: serial]
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name string
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nr_downloads int
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test_id u64
user User
created time.Time
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}
[table: 'userlist']
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struct User {
id int [primary; sql: serial]
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age int
name string [sql: 'username']
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is_customer bool
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skipped_string string [skip]
}
struct Foo {
age int
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}
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struct TestTime {
id int [primary; sql: serial]
create time.Time
}
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fn test_orm_sqlite() {
db := sqlite.connect(':memory:') or { panic(err) }
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db.exec('drop table if exists User')
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sql db {
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create table Module
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}
name := 'Peter'
sam := User{
age: 29
name: 'Sam'
}
peter := User{
age: 31
name: 'Peter'
}
k := User{
age: 30
name: 'Kate'
is_customer: true
}
sql db {
insert sam into User
insert peter into User
insert k into User
}
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c := sql db {
select count from User where id != 1
}
assert c == 2
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nr_all_users := sql db {
select count from User
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}
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assert nr_all_users == 3
println('nr_all_users=$nr_all_users')
//
nr_users1 := sql db {
select count from User where id == 1
}
assert nr_users1 == 1
println('nr_users1=$nr_users1')
//
nr_peters := sql db {
select count from User where id == 2 && name == 'Peter'
}
assert nr_peters == 1
println('nr_peters=$nr_peters')
//
nr_peters2 := sql db {
select count from User where id == 2 && name == name
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}
assert nr_peters2 == 1
nr_peters3 := sql db {
select count from User where name == name
}
assert nr_peters3 == 1
peters := sql db {
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select from User where name == name
}
assert peters.len == 1
assert peters[0].name == 'Peter'
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one_peter := sql db {
select from User where name == name limit 1
}
assert one_peter.name == 'Peter'
assert one_peter.id == 2
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//
user := sql db {
select from User where id == 1
}
println(user)
assert user.name == 'Sam'
assert user.id == 1
assert user.age == 29
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//
users := sql db {
select from User where id > 0
}
println(users)
assert users.len == 3
assert users[0].name == 'Sam'
assert users[1].name == 'Peter'
assert users[1].age == 31
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//
users2 := sql db {
select from User where id < 0
}
println(users2)
assert users2.len == 0
//
users3 := sql db {
select from User where age == 29 || age == 31
}
println(users3)
assert users3.len == 2
assert users3[0].age == 29
assert users3[1].age == 31
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//
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missing_user := sql db {
select from User where id == 8777
}
println('missing_user:')
println(missing_user) // zero struct
//
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new_user := User{
name: 'New user'
age: 30
}
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sql db {
insert new_user into User
}
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// db.insert<User>(user2)
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x := sql db {
select from User where id == 4
}
println(x)
assert x.age == 30
assert x.id == 4
assert x.name == 'New user'
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//
kate := sql db {
select from User where id == 3
}
assert kate.is_customer == true
//
customer := sql db {
select from User where is_customer == true limit 1
}
assert customer.is_customer == true
assert customer.name == 'Kate'
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//
sql db {
update User set age = 31 where name == 'Kate'
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}
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kate2 := sql db {
select from User where id == 3
}
assert kate2.age == 31
assert kate2.name == 'Kate'
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//
sql db {
update User set age = 32, name = 'Kate N' where name == 'Kate'
}
mut kate3 := sql db {
select from User where id == 3
}
assert kate3.age == 32
assert kate3.name == 'Kate N'
//
/*
sql db {
update User set age = age + 1, name = 'Kate N' where name == 'Kate'
}
kate3 = sql db {
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select from User where id == 3
}
println(kate3)
assert kate3.age == 32
assert kate3.name == 'Kate N'
*/
new_age := 33
sql db {
update User set age = new_age, name = 'Kate N' where id == 3
}
kate3 = sql db {
select from User where id == 3
}
assert kate3.age == 33
assert kate3.name == 'Kate N'
//
foo := Foo{34}
sql db {
update User set age = foo.age, name = 'Kate N' where id == 3
}
kate3 = sql db {
select from User where id == 3
}
assert kate3.age == 34
assert kate3.name == 'Kate N'
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//
no_user := sql db {
select from User where id == 30
}
assert no_user.name == '' // TODO optional
assert no_user.age == 0
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//
two_users := sql db {
select from User limit 2
}
assert two_users.len == 2
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assert two_users[0].id == 1
//
y := sql db {
select from User limit 2 offset 1
}
assert y.len == 2
assert y[0].id == 2
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//
offset_const := 2
z := sql db {
select from User limit 2 offset offset_const
}
assert z.len == 2
assert z[0].id == 3
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oldest := sql db {
select from User order by age desc limit 1
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}
assert oldest.age == 34
offs := 1
second_oldest := sql db {
select from User order by age desc limit 1 offset offs
}
assert second_oldest.age == 31
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sql db {
delete from User where age == 34
}
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updated_oldest := sql db {
select from User order by age desc limit 1
}
assert updated_oldest.age == 31
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db.exec('insert into User (name, age) values (NULL, 31)')
null_user := sql db {
select from User where id == 5
}
assert null_user.name == ''
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age_test := sql db {
select from User where id == 1
}
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assert age_test.age == 29
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sql db {
update User set age = age + 1 where id == 1
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}
mut first := sql db {
select from User where id == 1
}
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assert first.age == 30
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sql db {
update User set age = age * 2 where id == 1
}
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first = sql db {
select from User where id == 1
}
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assert first.age == 60
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sql db {
create table TestTime
}
tnow := time.now()
time_test := TestTime{
create: tnow
}
sql db {
insert time_test into TestTime
}
data := sql db {
select from TestTime where create == tnow
}
assert data.len == 1
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mod := Module{}
sql db {
insert mod into Module
}
sql db {
update Module set test_id = 11 where id == 1
}
test_id_mod := sql db {
select from Module where id == 1
}
assert test_id_mod.test_id == 11
t := time.now()
sql db {
update Module set created = t where id == 1
}
updated_time_mod := sql db {
select from Module where id == 1
}
// Note: usually updated_time_mod.created != t, because t has
// its microseconds set, while the value retrieved from the DB
// has them zeroed, because the db field resolution is seconds.
assert updated_time_mod.created.format_ss() == t.format_ss()
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}