From 0a2d6fc06fc1988f860ab81fe53d1e6dae470407 Mon Sep 17 00:00:00 2001
From: Harald Eilertsen <haraldei@anduin.net>
Date: Sun, 23 Aug 2020 15:03:13 +0200
Subject: Implement deleting screenings from web ui.

---
 src/controllers/screening.rs  | 13 ++++++++++++-
 src/db.rs                     |  6 ++++++
 src/lib.rs                    |  1 +
 templates/screening/list.tera | 18 +++++++++++++++---
 4 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/src/controllers/screening.rs b/src/controllers/screening.rs
index b76ae65..9e78130 100644
--- a/src/controllers/screening.rs
+++ b/src/controllers/screening.rs
@@ -22,7 +22,7 @@ use crate::{
 };
 
 use std::result::Result;
-use rocket::{get, post};
+use rocket::{delete, get, post};
 use rocket::request::{Form, FromForm};
 use rocket::response::Redirect;
 use rocket_contrib::{
@@ -82,3 +82,14 @@ pub fn create_screening(db: db::Connection, screening: Form<NewScreeningForm>) -
     db.create_screening(dbg!(screening.room_id), dbg!(screening.film_id), date, start_time, end_time)?;
     Ok(Redirect::to("/screenings"))
 }
+
+#[derive(FromForm)]
+pub struct DeleteScreeningForm {
+    screening_id: i32,
+}
+
+#[delete("/", format = "application/x-www-form-urlencoded", data = "<screening>")]
+pub fn delete(db: db::Connection, screening: Form<DeleteScreeningForm>) -> Result<Redirect, Box<dyn Error>> {
+    db.delete_screening(screening.screening_id)?;
+    Ok(Redirect::to("/screenings"))
+}
diff --git a/src/db.rs b/src/db.rs
index cf1c0fb..4297d25 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -71,6 +71,12 @@ impl Connection {
         Ok(models::AggregatedScreening::from_query(s))
     }
 
+    pub fn delete_screening(&self, screening_id: i32) -> QueryResult<usize> {
+        use crate::schema::screenings::dsl::*;
+        diesel::delete(screenings.filter(id.eq(screening_id)))
+            .execute(&**self)
+    }
+
     pub fn create_room(&self, room_name: &String) -> QueryResult<usize> {
         use crate::schema::rooms::dsl::*;
         diesel::insert_into(rooms)
diff --git a/src/lib.rs b/src/lib.rs
index 4972205..0f9d7b4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -51,5 +51,6 @@ pub fn build_rocket(db_url: &str) -> Result<rocket::Rocket, Box<dyn Error>> {
             screening::list_screenings,
             screening::new_screening,
             screening::create_screening,
+            screening::delete,
         ]))
 }
diff --git a/templates/screening/list.tera b/templates/screening/list.tera
index 7c92303..263d3ea 100644
--- a/templates/screening/list.tera
+++ b/templates/screening/list.tera
@@ -12,11 +12,23 @@
 {% if screenings | length <= 0%}
 No screenings defined.
 {% else %}
-<ul>
+<table>
 {% for s in screenings -%}
-<li>{{ s.date }} {{ s.start_time }} - {{ s.end_time }}: {{ s.film.title }} ({{ s.room.name }})</li>
+  <tr>
+      <td>{{ s.date }}</td>
+      <td>{{ s.start_time }} - {{ s.end_time }}:</td>
+      <td>{{ s.film.title }}</td>
+      <td>({{ s.room.name }})</td>
+      <td>
+          <form class="delete-item" id="delete-screening-{{ s.id }}" action="/screenings" method="POST">
+              <input name="_method" value="DELETE" type="hidden">
+              <input name="screening_id" value="{{ s.id }}" type="hidden">
+              <input type="submit" value="X">
+          </form>
+      </td>
+  </tr>
 {% endfor -%}
-</ul>
+</table>
 {% endif %}
 </body>
 </html>
-- 
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