start working on storage level

.env

@@ -0,0 +1 @@
+DATABASE_URL=postgres://postgres:postgres@localhost/fang

Cargo.toml

@@ -9,3 +9,5 @@ license = "MIT"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+diesel = { version = "1.4.6", features = ["postgres"] }
+dotenv = "0.15.0"

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/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();

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;

migrations/2021-06-05-112912_create_fang_tasks/down.sql

@@ -0,0 +1 @@
+-- This file should undo anything in `up.sql`

migrations/2021-06-05-112912_create_fang_tasks/up.sql

@@ -0,0 +1,6 @@
+CREATE TABLE fang_tasks (
+     id BIGSERIAL primary key,
+     metadata jsonb,
+     created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
+     updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+);

src/lib.rs

@@ -1,3 +1,16 @@
+// pub trait JobQueue {
+//     type Job;
+//     type Error;
+
+//     fn push(job: Self::Job) -> Result<(), Self::Error> {
+
+//     }
+//     fn pop(job: Self::Job) -> Result<(), Self::Error>;
+// }
+
+// pub trait Storage {
+//     fn save() ->
+// }
 #[cfg(test)]
 mod tests {
     #[test]

src/queue.rs

@@ -0,0 +1,7 @@
+pub trait JobQueue {
+    type Job;
+    type Error;
+
+    fn push(job: Self::Job) -> Result<(), Self::Error>;
+    fn pop(job: Self::Job) -> Result<(), Self::Error>;
+}

src/schema.rs

@@ -0,0 +1,8 @@
+table! {
+    fang_tasks (id) {
+        id -> Int8,
+        metadata -> Nullable<Jsonb>,
+        created_at -> Timestamptz,
+        updated_at -> Timestamptz,
+    }
+}