first db support

service/database/db-photos.go

@@ -0,0 +1,53 @@
+package database
+
+import "time"
+
+type Photo struct {
+	ID       int64
+	Likes    int64
+	Comments int64
+}
+
+type UserProfile struct {
+	UID       string
+	Name      string
+	Following []string
+	Followers []string
+	Photos    []Photo
+}
+
+// Post a new photo
+func (db *appdbimpl) PostPhoto(uid string) (int64, error) {
+	res, err := db.c.Exec(`INSERT INTO "photos" ("user", "date") VALUES (?, ?)`, uid, time.Now().Format(time.RFC3339))
+	if err != nil {
+		return 0, err
+	}
+	id, err := res.LastInsertId()
+	if err != nil {
+		return 0, err
+	}
+	return id, nil
+}
+
+// Get user profile, including username, followers, following, and photos
+func (db *appdbimpl) GetUserProfile(uid string) (*UserProfile, error) {
+	// Get user info
+	var name string
+	err := db.c.QueryRow(`SELECT "name" FROM "users" WHERE "uid" = ?`, uid).Scan(&name)
+	if err != nil {
+		return nil, err
+	}
+	// Get followers
+}
+
+// Like a photo
+func (db *appdbimpl) LikePhoto(uid string, photo int64) error {
+	_, err := db.c.Exec(`INSERT INTO "likes" ("user", "photo_id") VALUES (?, ?)`, uid, photo)
+	return err
+}
+
+// Unlike a photo
+func (db *appdbimpl) UnlikePhoto(uid string, photo int64) error {
+	_, err := db.c.Exec(`DELETE FROM "likes" WHERE "user" = ? AND "photo_id" = ?`, uid, photo)
+	return err
+}