From bf48f827f7da396bdce45eb78a4ef7834f0a34a3 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sun, 24 Oct 2021 11:44:54 +0200
Subject: model: person: Add database interfacing code

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
---
 service-person/src/model/address.rs |  2 +-
 service-person/src/model/person.rs  | 65 ++++++++++++++++++++++++++++++++++---
 2 files changed, 61 insertions(+), 6 deletions(-)

diff --git a/service-person/src/model/address.rs b/service-person/src/model/address.rs
index dcce3ce..8df5774 100644
--- a/service-person/src/model/address.rs
+++ b/service-person/src/model/address.rs
@@ -20,7 +20,7 @@ use crate::schema;
 #[belongs_to(Street)]
 #[table_name = "address"]
 pub struct Address {
-    id: i32,
+    pub(super) id: i32,
 
     country_id: i32,
     city_id: i32,
diff --git a/service-person/src/model/person.rs b/service-person/src/model/person.rs
index 338d6ff..90dff1f 100644
--- a/service-person/src/model/person.rs
+++ b/service-person/src/model/person.rs
@@ -1,9 +1,64 @@
 use serde::Deserialize;
-use crate::model::*;
+use anyhow::Error;
+use anyhow::Result;
+use diesel::ExpressionMethods;
+use diesel::RunQueryDsl;
+use diesel::query_dsl::methods::FilterDsl;
+use diesel::Connection;
+use diesel::BoolExpressionMethods;
 
-#[derive(Debug, Deserialize)]
+use crate::db::DbPool;
+use crate::model::Address;
+use crate::schema::persons;
+use crate::schema;
+
+#[derive(Debug, Deserialize, diesel::Associations, diesel::Queryable, getset::Getters, getset::CopyGetters)]
+#[belongs_to(Address)]
+#[table_name = "persons"]
 pub struct Person {
-    name: Name,
-    age: Age,
-    addr: Address,
+    id: i32,
+
+    #[getset(get = "pub")]
+    name: String,
+
+    #[getset(get_copy = "pub")]
+    age: i32,
+    address_id: i32,
+}
+
+#[derive(Insertable)]
+#[table_name = "persons"]
+struct NewPerson<'a> {
+    name: &'a str,
+    age: i32,
+    address_id: i32,
+}
+
+
+impl Person {
+    pub fn create_or_fetch(db: &DbPool, addr: &Address, name: &str, age: i32) -> Result<Self> {
+        let conn = db.get()?;
+
+        conn.transaction::<_, Error, _>(|| {
+            let new_person = NewPerson {
+                name,
+                age,
+                address_id: addr.id,
+            };
+
+            diesel::insert_into(schema::persons::table)
+                .values(&new_person)
+                .on_conflict_do_nothing()
+                .execute(&conn)?;
+
+            schema::persons::table
+                .filter({
+                    schema::persons::name.eq(name)
+                        .and(schema::persons::age.eq(age))
+                        .and(schema::persons::address_id.eq(addr.id))
+                })
+                .first::<Person>(&conn)
+                .map_err(Error::from)
+        })
+    }
 }
-- 
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