added subscription model

.gitignore

@@ -3,3 +3,4 @@
 .idea
 .vscode
 *.iml
+local.db

diesel.toml

@@ -0,0 +1,5 @@
+# For documentation on how to configure this file,
+# see diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"

migrations/2019-04-01-223446_add_subscriptons/down.sql

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+-- This file should undo anything in `up.sql`
+DROP TABLE subscriptions

migrations/2019-04-01-223446_add_subscriptons/up.sql

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+-- Your SQL goes here
+CREATE TABLE subscriptions (
+  id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+  callback VARCHAR NOT NULL,
+  topic VARCHAR NOT NULL,
+  sec VARCHAR NOT NULL,
+  created_at INTEGER NOT NULL,
+  expires_at INTEGER NOT NULL
+)

src/models.rs

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+use super::schema::posts;
+
+#[derive(Queryable)]
+pub struct Subscription {
+    pub id: i32,
+    pub callback: String,
+    pub topic: String,
+    pub sec: String,
+    pub created_at: i32,
+    pub expires_at: i32
+}
+
+#[derive(Insertable)]
+#[table_name="subscriptions"]
+pub struct NewSubscription<'a> {
+    pub callback: &'a str,
+    pub topic: &'a str,
+    pub sec: &'a str,
+    pub created_at: &'a i32,
+    pub expires_at: &'a i32
+}

src/schema.rs

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+table! {
+    subscriptions (id) {
+        id -> Integer,
+        callback -> Text,
+        topic -> Text,
+        sec -> Text,
+        created_at -> Integer,
+        expires_at -> Integer,
+    }
+}