Have got uploads working

sql/schema/02_upload.up.sql

@@ -0,0 +1,27 @@
+CREATE TABLE uploads (
+    id         SERIAL PRIMARY KEY,
+    site_id    INT  NOT NULL,
+    guid       TEXT NOT NULL,
+    mime_type  TEXT NOT NULL,
+    filename   TEXT NOT NULL,
+    alt        TEXT NOT NULL,
+    created_at INT  NOT NULL,
+
+    FOREIGN KEY (site_id) REFERENCES sites (id) ON DELETE CASCADE
+);
+CREATE INDEX idx_uploads_site ON uploads (site_id);
+CREATE UNIQUE INDEX idx_uploads_guid ON sites (guid);
+
+CREATE TABLE pending_uploads (
+    id SERIAL PRIMARY KEY,
+    site_id INT NOT NULL,
+    guid TEXT NOT NULL,
+    user_id INT NOT NULL,
+    filename TEXT NOT NULL,
+    file_size INT NOT NULL,
+    mime_type TEXT NOT NULL,
+    upload_started_at INT NOT NULL,
+    FOREIGN KEY (site_id) REFERENCES sites (id) ON DELETE CASCADE,
+    FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+);
+CREATE UNIQUE INDEX idx_pending_uploads_guid ON pending_uploads (guid);