From e983cc1b9d0e6b731e510c1df5cc8b75ad2dad10 Mon Sep 17 00:00:00 2001
From: kirbylife <gabriel13m@gmail.com>
Date: Thu, 19 Dec 2019 01:07:14 -0600
Subject: [PATCH] now can edit the posts directly from admin panel

---
 src/admin.rs                        | 58 ++++++++++++++++++++--
 src/controllers.rs                  | 16 ++++++-
 templates/admin/edit_post.html.tera | 74 +++++++++++++++++++++++++++++
 templates/admin/panel.html.tera     |  5 +-
 4 files changed, 146 insertions(+), 7 deletions(-)
 create mode 100644 templates/admin/edit_post.html.tera

diff --git a/src/admin.rs b/src/admin.rs
index 0214779..29f0287 100644
--- a/src/admin.rs
+++ b/src/admin.rs
@@ -90,7 +90,7 @@ fn add_post(mut cookies: Cookies<'_>) -> Result<Template, Redirect> {
 }
 
 #[post("/add_post", data = "<post>")]
-fn write_post(mut cookies: Cookies<'_>, post: Form<NewPost>) -> Redirect {
+fn write_add_post(mut cookies: Cookies<'_>, post: Form<NewPost>) -> Redirect {
     let password = env::var("admin_pass").expect("admin_pass not setted");
 
     match cookies.get_private("user") {
@@ -108,6 +108,58 @@ fn write_post(mut cookies: Cookies<'_>, post: Form<NewPost>) -> Redirect {
     }
 }
 
-pub fn get_routes() -> Vec<Route> {
-    routes![index, login, panel, add_post, write_post]
+#[get("/edit_post/<id>")]
+fn edit_post(mut cookies: Cookies<'_>, id: i32) -> Result<Template, Redirect> {
+    let password = env::var("admin_pass").expect("admin_pass not setted");
+
+    match cookies.get_private("user") {
+        Some(cookie) => {
+            if cookie.value() == password {
+                let mut context = get_context();
+
+                let post = posts::get_post(id).unwrap();
+
+                context.insert("id", &post.id);
+                context.insert("title", &post.title);
+                context.insert("content", &post.content);
+                context.insert("published", &post.published);
+
+                Ok(Template::render("admin/edit_post", context))
+            } else {
+                Err(Redirect::to("/admin"))
+            }
+        }
+        None => Err(Redirect::to("/admin")),
+    }
+}
+
+#[post("/edit_post/<id>", data = "<post>")]
+fn write_edit_post(mut cookies: Cookies<'_>, id: i32, post: Form<NewPost>) -> Redirect {
+    let password = env::var("admin_pass").expect("admin_pass not setted");
+
+    match cookies.get_private("user") {
+        Some(cookie) => {
+            if cookie.value() == password {
+                match posts::edit_post(id, &post) {
+                    Ok(post) => Redirect::to(format!("/post/{}", post.id)),
+                    Err(_) => Redirect::to("admin/add_post"),
+                }
+            } else {
+                Redirect::to("/admin")
+            }
+        }
+        None => Redirect::to("/admin"),
+    }
+}
+
+pub fn get_routes() -> Vec<Route> {
+    routes![
+        index,
+        login,
+        panel,
+        add_post,
+        write_add_post,
+        edit_post,
+        write_edit_post
+    ]
 }
diff --git a/src/controllers.rs b/src/controllers.rs
index f39105e..a86976f 100644
--- a/src/controllers.rs
+++ b/src/controllers.rs
@@ -23,9 +23,10 @@ pub mod posts {
         use crate::schema::posts::dsl::*;
 
         let connection = establish_connection();
-        let visible_posts = posts.filter(published.eq(true)).order(created_at.desc());
+        let visible_posts = posts.order(created_at.desc());
         let visible_posts = match page {
             Some(number_page) => visible_posts
+                .filter(published.eq(true))
                 .limit(MAX_POSTS_PER_PAGE as i64)
                 .offset((MAX_POSTS_PER_PAGE * (number_page - 1)) as i64)
                 .load::<Post>(&connection)
@@ -61,4 +62,17 @@ pub mod posts {
             .values(new_post)
             .get_result(&connection)
     }
+
+    pub fn edit_post(updated_id: i32, new_post: &NewPost) -> Result<Post, Error> {
+        use crate::schema::posts::dsl::*;
+        let connection = establish_connection();
+
+        diesel::update(posts.filter(id.eq(updated_id)))
+            .set((
+                title.eq(&new_post.title),
+                content.eq(&new_post.content),
+                published.eq(&new_post.published),
+            ))
+            .get_result(&connection)
+    }
 }
diff --git a/templates/admin/edit_post.html.tera b/templates/admin/edit_post.html.tera
new file mode 100644
index 0000000..280303e
--- /dev/null
+++ b/templates/admin/edit_post.html.tera
@@ -0,0 +1,74 @@
+{% extends "base" %}
+
+{% block extracss %}
+<style>
+  div.container {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+  }
+
+  div.editable form {
+      height: 100%;
+  }
+
+  div.editable input#title {
+      width: 76%;
+      margin: 10px 10px 10px 0;
+  }
+
+  div.editable textarea {
+      width: 95%;
+      height: 85%;
+      box-sizing: border-box;
+  }
+</style>
+{% endblock extracss %}
+
+{% block content %}
+<div class="editable">
+  <form action="/admin/edit_post/{{ id }}" method="post">
+    <input id="title" name="title" type="text" value={{ title }}/>
+    <label for="">Visible</label>
+    <input name="published" type="checkbox" value="true"{% if published %}checked{% endif %}/>
+    <textarea id="content" name="content">{{ content }}</textarea>
+    <button>Publicar</button>
+  </form>
+</div>
+<div id="preview" class="preview">
+</div>
+{% endblock content %}
+
+{% block extrajs %}
+<script src="https://cdn.jsdelivr.net/npm/showdown@1.9.0/dist/showdown.min.js"></script>
+<script>
+  function delay(fn, ms) {
+      let timer = 0
+      return function(...args) {
+          clearTimeout(timer)
+          timer = setTimeout(fn.bind(this, ...args), ms || 0)
+      }
+  }
+
+  let converter = new showdown.Converter({
+      parseImgDimensions: true,
+      strikethrough: true,
+      tables: true,
+      tasklists: true,
+      emoji: true
+  });
+
+
+  text = "# " + document.getElementById("title").value.trim() + "\n" + document.getElementById("content").value;
+  document.getElementById("preview").innerHTML = converter.makeHtml(text);
+
+  document.getElementById("content").addEventListener("keyup", delay(() => {
+      let text = "# " + document.getElementById("title").value.trim() + "\n" + document.getElementById("content").value;
+      document.getElementById("preview").innerHTML = converter.makeHtml(text);
+  }, 500));
+
+  document.getElementById("title").addEventListener("keyup", delay(() => {
+      let text = "# " + document.getElementById("title").value.trim() + "\n" + document.getElementById("content").value;
+      document.getElementById("preview").innerHTML = converter.makeHtml(text);
+  }, 500));
+</script>
+{% endblock extrajs %}
diff --git a/templates/admin/panel.html.tera b/templates/admin/panel.html.tera
index 95b8cbb..84c35bb 100644
--- a/templates/admin/panel.html.tera
+++ b/templates/admin/panel.html.tera
@@ -45,15 +45,14 @@
         <p class="colored"><a href="/post/{{ post.title | slugify }}-{{ post.id }}">{{ post.title }}</a></p>
         <p class="colored center">0</p>
         <p class="colored center">{{ post.published }}</p>
-        <p class="colored"><a href="#">Editar</a></p>
+        <p class="colored"><a href="/admin/edit_post/{{ post.id }}">Editar</a></p>
       {% else %}
         <p>{{ post.id }}</p>
         <p><a href="/post/{{ post.title | slugify }}-{{ post.id }}">{{ post.title }}</a></p>
         <p class="center">0</p>
         <p class="center">{{ post.published }}</p>
-        <p><a href="#">Editar</a></p>
+        <p><a href="/admin/edit_post/{{ post.id }}">Editar</a></p>
       {% endif %}
     {% endfor %}
   </div>
-</h3>
 {% endblock content %}