Merged in feature/logVersioning (pull request #40)

Can Sync Versioning

* started

* client

* jobcansync

* tests

database/migrations/00000000000003_clients.up.sql

@@ -1,6 +1,13 @@
 CREATE TABLE clients (
     id uuid primary key DEFAULT gen_random_uuid(),
     name TEXT not null,
-    canSync boolean not null default false,
     UNIQUE (name)
+);
+
+CREATE TABLE clientCanSync (
+    id uuid primary key DEFAULT gen_random_uuid(),
+    clientId uuid not null,
+    canSync boolean not null,
+    addedAt timestamp not null default current_timestamp,
+    foreign key (clientId) references clients(id)
 );

database/migrations/00000000000004_jobs.up.sql

@@ -1,6 +1,13 @@
 CREATE TABLE jobs (
     id uuid primary key DEFAULT gen_random_uuid(),
     clientId uuid not null,
-    canSync boolean not null default false,
     foreign key (clientId) references clients(id)
+);
+
+CREATE TABLE jobCanSync (
+    id uuid primary key DEFAULT gen_random_uuid(),
+    jobId uuid not null,
+    canSync boolean not null,
+    addedAt timestamp not null default current_timestamp,
+    foreign key (jobId) references jobs(id)
 );

database/queries/client.sql

@@ -2,7 +2,19 @@
 INSERT INTO clients (name) VALUES ($1) RETURNING id;
 
 -- name: GetClient :one
-SELECT id, name, canSync FROM clients WHERE id = $1;
+SELECT c.id, c.name, coalesce(cs.canSync, false) as canSync
+    FROM clients as c
+    LEFT JOIN (
+        SELECT clientId, canSync
+        FROM clientCanSync
+        WHERE clientId = $1
+        ORDER BY addedAt DESC
+        LIMIT 1
+    ) as cs on cs.clientId = c.id
+    WHERE c.id = $1;
 
 -- name: UpdateClient :exec
-UPDATE clients SET name = $1, canSync = $2 WHERE id = $3;
+UPDATE clients SET name = $1 WHERE id = $2;
+
+-- name: AddClientCanSync :exec
+INSERT INTO clientCanSync (canSync, clientId) VALUES ($1, $2);

database/queries/job.sql

@@ -1,8 +1,17 @@
 -- name: GetJob :one
-SELECT id, clientId, canSync FROM jobs WHERE id = $1 LIMIT 1;
+SELECT j.id, j.clientId, coalesce(cs.canSync, false) as canSync
+    FROM jobs as j
+    LEFT JOIN (
+        SELECT jobId, canSync
+        FROM jobCanSync
+        WHERE jobId = $1
+        ORDER BY addedAt DESC
+        LIMIT 1
+    ) as cs on cs.jobId = j.id
+    WHERE j.id = $1;
 
 -- name: CreateJob :one
 INSERT INTO jobs (clientId) VALUES ($1) RETURNING id;
 
--- name: UpdateJob :exec
-UPDATE jobs SET canSync = $1 WHERE id = $2;
+-- name: AddJobCanSync :exec
+INSERT INTO jobCanSync (canSync, jobId) VALUES ($1, $2);