feat: insert works

__database/diesel/src/main.rs

@@ -8,23 +8,22 @@ use diesel::prelude::*;
 use diesel::sqlite::SqliteConnection;
 use dotenv::dotenv;
 use std::env;
-use crate::models::Post;
+use crate::models::NewPost;
 
 fn main() {
-    use crate::schema::posts::dsl::*;
-
     let connection = establish_connection();
-    let results = posts.filter(published.eq(true))
-        .limit(5)
-        .load::<Post>(&connection)
-        .expect("Error loading posts");
+    create_post(&connection, "hello world", "this is a post!");
+}
 
-    println!("Displaying {} posts", results.len());
-    for post in results {
-        println!("{}", post.title);
-        println!("----------\n");
-        println!("{}", post.body);
-    }
+pub fn create_post(conn: &SqliteConnection, title: &str, body: &str) -> usize {
+    use crate::schema::posts;
+
+    let new_post = NewPost { title, body };
+
+    diesel::insert_into(posts::table)
+        .values(&new_post)
+        .execute(conn)
+        .expect("Error saving new post")
 }
 
 pub fn establish_connection() -> SqliteConnection {

__database/diesel/src/models.rs

@@ -1,7 +1,16 @@
+use crate::schema::posts;
+
 #[derive(Queryable)]
 pub struct Post {
     pub id: i32,
     pub title: String,
     pub body: String,
     pub published: bool,
-}
+}
+
+#[derive(Insertable)]
+#[table_name = "posts"]
+pub struct NewPost<'a> {
+    pub title: &'a str,
+    pub body: &'a str,
+}