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Add support for multiple simultaneous database features by using macros.

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Diesel requires the following changes:
- Separate connection and pool types per connection, the generate_connections! macro generates an enum with a variant per db type
- Separate migrations and schemas, these were always imported as one type depending on db feature, now they are all imported under different module names
- Separate model objects per connection, the db_object! macro generates one object for each connection with the diesel macros, a generic object, and methods to convert between the connection-specific and the generic ones
- Separate connection queries, the db_run! macro allows writing only one that gets compiled for all databases or multiple ones
This commit is contained in:
Daniel García
2020-08-18 17:15:44 +02:00
parent 19889187a5
commit 0365b7c6a4
17 changed files with 1506 additions and 1148 deletions
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114
src/db/models/two_factor.rs
View File

@@ -1,24 +1,24 @@
use diesel::prelude::*;
use serde_json::Value;
use crate::api::EmptyResult;
use crate::db::schema::twofactor;
use crate::db::DbConn;
use crate::error::MapResult;
use super::User;
#[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
#[table_name = "twofactor"]
#[belongs_to(User, foreign_key = "user_uuid")]
#[primary_key(uuid)]
pub struct TwoFactor {
pub uuid: String,
pub user_uuid: String,
pub atype: i32,
pub enabled: bool,
pub data: String,
pub last_used: i32,
db_object! {
#[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
#[table_name = "twofactor"]
#[belongs_to(User, foreign_key = "user_uuid")]
#[primary_key(uuid)]
pub struct TwoFactor {
pub uuid: String,
pub user_uuid: String,
pub atype: i32,
pub enabled: bool,
pub data: String,
pub last_used: i32,
}
}
#[allow(dead_code)]
@@ -70,57 +70,69 @@ impl TwoFactor {
/// Database methods
impl TwoFactor {
#[cfg(feature = "postgresql")]
pub fn save(&self, conn: &DbConn) -> EmptyResult {
// We need to make sure we're not going to violate the unique constraint on user_uuid and atype.
// This happens automatically on other DBMS backends due to replace_into(). PostgreSQL does
// not support multiple constraints on ON CONFLICT clauses.
diesel::delete(twofactor::table.filter(twofactor::user_uuid.eq(&self.user_uuid)).filter(twofactor::atype.eq(&self.atype)))
.execute(&**conn)
.map_res("Error deleting twofactor for insert")?;
db_run! { conn:
sqlite, mysql {
diesel::replace_into(twofactor::table)
.values(TwoFactorDb::to_db(self))
.execute(conn)
.map_res("Error saving twofactor")
}
postgresql {
let value = TwoFactorDb::to_db(self);
// We need to make sure we're not going to violate the unique constraint on user_uuid and atype.
// This happens automatically on other DBMS backends due to replace_into(). PostgreSQL does
// not support multiple constraints on ON CONFLICT clauses.
diesel::delete(twofactor::table.filter(twofactor::user_uuid.eq(&self.user_uuid)).filter(twofactor::atype.eq(&self.atype)))
.execute(conn)
.map_res("Error deleting twofactor for insert")?;
diesel::insert_into(twofactor::table)
.values(self)
.on_conflict(twofactor::uuid)
.do_update()
.set(self)
.execute(&**conn)
.map_res("Error saving twofactor")
}
#[cfg(not(feature = "postgresql"))]
pub fn save(&self, conn: &DbConn) -> EmptyResult {
diesel::replace_into(twofactor::table)
.values(self)
.execute(&**conn)
.map_res("Error saving twofactor")
diesel::insert_into(twofactor::table)
.values(&value)
.on_conflict(twofactor::uuid)
.do_update()
.set(&value)
.execute(conn)
.map_res("Error saving twofactor")
}
}
}
pub fn delete(self, conn: &DbConn) -> EmptyResult {
diesel::delete(twofactor::table.filter(twofactor::uuid.eq(self.uuid)))
.execute(&**conn)
.map_res("Error deleting twofactor")
db_run! { conn: {
diesel::delete(twofactor::table.filter(twofactor::uuid.eq(self.uuid)))
.execute(conn)
.map_res("Error deleting twofactor")
}}
}
pub fn find_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
twofactor::table
.filter(twofactor::user_uuid.eq(user_uuid))
.filter(twofactor::atype.lt(1000)) // Filter implementation types
.load::<Self>(&**conn)
.expect("Error loading twofactor")
db_run! { conn: {
twofactor::table
.filter(twofactor::user_uuid.eq(user_uuid))
.filter(twofactor::atype.lt(1000)) // Filter implementation types
.load::<TwoFactorDb>(conn)
.expect("Error loading twofactor")
.from_db()
}}
}
pub fn find_by_user_and_type(user_uuid: &str, atype: i32, conn: &DbConn) -> Option<Self> {
twofactor::table
.filter(twofactor::user_uuid.eq(user_uuid))
.filter(twofactor::atype.eq(atype))
.first::<Self>(&**conn)
.ok()
db_run! { conn: {
twofactor::table
.filter(twofactor::user_uuid.eq(user_uuid))
.filter(twofactor::atype.eq(atype))
.first::<TwoFactorDb>(conn)
.ok()
.from_db()
}}
}
pub fn delete_all_by_user(user_uuid: &str, conn: &DbConn) -> EmptyResult {
diesel::delete(twofactor::table.filter(twofactor::user_uuid.eq(user_uuid)))
.execute(&**conn)
.map_res("Error deleting twofactors")
db_run! { conn: {
diesel::delete(twofactor::table.filter(twofactor::user_uuid.eq(user_uuid)))
.execute(conn)
.map_res("Error deleting twofactors")
}}
}
}