start diesel setup

src/status.rs

@@ -0,0 +1,46 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Copy, PartialEq, Eq, Serialize, Deserialize, diesel::expression::AsExpression, diesel::deserialize::FromSqlRow)]
+#[diesel(sql_type = diesel::sql_types::SmallInt)]
+pub enum ServerStatus {
+    Archived,
+    Stopped,
+    Stopping,
+    Starting,
+    Running,
+    Unknown,
+}
+
+impl<DB: diesel::backend::Backend> diesel::serialize::ToSql<diesel::sql_types::SmallInt, DB> for ServerStatus
+where
+    <DB as diesel::backend::Backend>::RawValue: for<'a> diesel::serialize::ToSql<diesel::sql_types::SmallInt, DB<'a>> + ?Sized,
+{
+    fn to_sql<'b>(&'b self, out: &mut diesel::serialize::Output<'b, '_, DB>) -> diesel::serialize::Result<diesel::serialize::IsNull> {
+        let val = match self {
+            ServerStatus::Archived => 0i16,
+            ServerStatus::Stopped => 1i16,
+            ServerStatus::Stopping => 2i16,
+            ServerStatus::Starting => 3i16,
+            ServerStatus::Running => 4i16,
+            ServerStatus::Unknown => -1i16,
+        };
+        diesel::serialize::ToSql::<diesel::sql_types::SmallInt, DB>::to_sql(&val, out)
+    }
+}
+
+impl<DB: diesel::backend::Backend> diesel::deserialize::FromSql<diesel::sql_types::SmallInt, DB> for ServerStatus
+where
+    <DB as diesel::backend::Backend>::RawValue: for<'a> diesel::deserialize::FromSql<'a, diesel::sql_types::SmallInt, DB> + ?Sized,
+{
+    fn from_sql(bytes: <DB as diesel::backend::Backend>::RawValue<'_>) -> diesel::deserialize::Result<Self> {
+        let val = i16::from_sql(bytes)?;
+        match val {
+            0 => Ok(ServerStatus::Archived),
+            1 => Ok(ServerStatus::Stopped),
+            2 => Ok(ServerStatus::Stopping),
+            3 => Ok(ServerStatus::Starting),
+            4 => Ok(ServerStatus::Running),
+            _ => Ok(ServerStatus::Unknown),
+        }
+    }
+}