commit ab9a94ac1eac6bf876bb15c2713f9deb591ca329
Author: Anson Biggs <anson@ansonbiggs.com>
Date:   Fri May 9 19:01:08 2025 -0600

    tut checkpoint

diff --git a/.env b/.env
new file mode 100644
index 0000000..0c95ba5
--- /dev/null
+++ b/.env
@@ -0,0 +1 @@
+DATABASE_URL=postgres://postgres:mysecretpassword@localhost:5432/postgres
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..276999c
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,261 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
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+ "diesel_derives",
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+]
+
+[[package]]
+name = "diesel_demo"
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+ "proc-macro2",
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+]
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+]
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..8687b45
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "diesel_demo"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+diesel = { version = "2.2.0", features = ["postgres"] }
+# build libpq and openssl as part of the build process
+# uncomment these lines if you run into setup issues
+pq-sys = { version = "0.6", features = ["bundled"] }
+openssl-sys = { version = "0.9.100", features = ["vendored"] } 
+dotenvy = "0.15"
\ No newline at end of file
diff --git a/diesel.toml b/diesel.toml
new file mode 100644
index 0000000..1c4f4c6
--- /dev/null
+++ b/diesel.toml
@@ -0,0 +1,9 @@
+# For documentation on how to configure this file,
+# see https://diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"
+custom_type_derives = ["diesel::query_builder::QueryId", "Clone"]
+
+[migrations_directory]
+dir = "/Users/ansonbiggs/Coding/diesel_demo/migrations"
diff --git a/migrations/.keep b/migrations/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/migrations/00000000000000_diesel_initial_setup/down.sql b/migrations/00000000000000_diesel_initial_setup/down.sql
new file mode 100644
index 0000000..a9f5260
--- /dev/null
+++ b/migrations/00000000000000_diesel_initial_setup/down.sql
@@ -0,0 +1,6 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass);
+DROP FUNCTION IF EXISTS diesel_set_updated_at();
diff --git a/migrations/00000000000000_diesel_initial_setup/up.sql b/migrations/00000000000000_diesel_initial_setup/up.sql
new file mode 100644
index 0000000..d68895b
--- /dev/null
+++ b/migrations/00000000000000_diesel_initial_setup/up.sql
@@ -0,0 +1,36 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+
+
+
+-- Sets up a trigger for the given table to automatically set a column called
+-- `updated_at` whenever the row is modified (unless `updated_at` was included
+-- in the modified columns)
+--
+-- # Example
+--
+-- ```sql
+-- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW());
+--
+-- SELECT diesel_manage_updated_at('users');
+-- ```
+CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$
+BEGIN
+    EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
+                    FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl);
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$
+BEGIN
+    IF (
+        NEW IS DISTINCT FROM OLD AND
+        NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
+    ) THEN
+        NEW.updated_at := current_timestamp;
+    END IF;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
diff --git a/migrations/2025-05-10-003345_create_posts/down.sql b/migrations/2025-05-10-003345_create_posts/down.sql
new file mode 100644
index 0000000..e00da65
--- /dev/null
+++ b/migrations/2025-05-10-003345_create_posts/down.sql
@@ -0,0 +1,2 @@
+-- This file should undo anything in `up.sql`
+DROP TABLE posts
\ No newline at end of file
diff --git a/migrations/2025-05-10-003345_create_posts/up.sql b/migrations/2025-05-10-003345_create_posts/up.sql
new file mode 100644
index 0000000..8636ca1
--- /dev/null
+++ b/migrations/2025-05-10-003345_create_posts/up.sql
@@ -0,0 +1,7 @@
+-- Your SQL goes here
+CREATE TABLE posts (
+  id SERIAL PRIMARY KEY,
+  title VARCHAR NOT NULL,
+  body TEXT NOT NULL,
+  published BOOLEAN NOT NULL DEFAULT FALSE
+)
\ No newline at end of file
diff --git a/migrations/2025-05-10-003713_create_posts/down.sql b/migrations/2025-05-10-003713_create_posts/down.sql
new file mode 100644
index 0000000..17e9f2a
--- /dev/null
+++ b/migrations/2025-05-10-003713_create_posts/down.sql
@@ -0,0 +1,2 @@
+-- This file should undo anything in `up.sql`
+
diff --git a/migrations/2025-05-10-003713_create_posts/up.sql b/migrations/2025-05-10-003713_create_posts/up.sql
new file mode 100644
index 0000000..495311a
--- /dev/null
+++ b/migrations/2025-05-10-003713_create_posts/up.sql
@@ -0,0 +1,2 @@
+-- Your SQL goes here
+
diff --git a/src/bin/show_posts.rs b/src/bin/show_posts.rs
new file mode 100644
index 0000000..9a379ac
--- /dev/null
+++ b/src/bin/show_posts.rs
@@ -0,0 +1,22 @@
+use self::models::*;
+use diesel::prelude::*;
+use diesel_demo::*;
+
+fn main() {
+    use self::schema::posts::dsl::*;
+
+    let connection = &mut establish_connection();
+    let results = posts
+        .filter(published.eq(true))
+        .limit(5)
+        .select(Post::as_select())
+        .load(connection)
+        .expect("Error loading posts");
+
+    println!("Displaying {} posts", results.len());
+    for post in results {
+        println!("{}", post.title);
+        println!("-----------\n");
+        println!("{}", post.body);
+    }
+}
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..cdc43ef
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,15 @@
+use diesel::prelude::*;
+use dotenvy::dotenv;
+use std::env;
+
+pub mod models;
+pub mod schema;
+
+pub fn establish_connection() -> PgConnection {
+    dotenv().ok();
+
+    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+    PgConnection::establish(&database_url).unwrap_or_else(
+        |_| panic!("Error connecting to {}", database_url)
+    )
+}
\ No newline at end of file
diff --git a/src/models.rs b/src/models.rs
new file mode 100644
index 0000000..3ec3840
--- /dev/null
+++ b/src/models.rs
@@ -0,0 +1,11 @@
+use diesel::prelude::*;
+
+#[derive(Queryable, Selectable)]
+#[diesel(table_name = crate::schema::posts)]
+#[diesel(check_for_backend(diesel::pg::Pg))]
+pub struct Post {
+    pub id: i32,
+    pub title: String,
+    pub body: String,
+    pub published: bool,
+}
\ No newline at end of file
diff --git a/src/schema.rs b/src/schema.rs
new file mode 100644
index 0000000..e769c99
--- /dev/null
+++ b/src/schema.rs
@@ -0,0 +1,10 @@
+// @generated automatically by Diesel CLI.
+
+diesel::table! {
+    posts (id) {
+        id -> Int4,
+        title -> Varchar,
+        body -> Text,
+        published -> Bool,
+    }
+}