initial commit

Signed-off-by: Pin <Pin>

db/dbinit/dbinit.go

@@ -0,0 +1,46 @@
+package dbinit
+
+import (
+	"log"
+	"fmt"
+	_ "github.com/lib/pq"
+	"database/sql"
+	"os"
+)
+
+func checkerr(err error) {
+	if err != nil {
+		log.Println(err)
+	}
+}
+
+func InitDB() {
+	psqlInfo := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable",
+	os.Getenv("HOST"), os.Getenv("PORT"), os.Getenv("DBUSER"), os.Getenv("PASSWD"), os.Getenv("DBNAME"))
+
+	db, err := sql.Open("postgres", psqlInfo)
+
+	checkerr(err)
+
+	defer db.Close()
+
+	_, err = db.Exec(`create table if not exists breed_manifest (
+			breed_id bigserial primary key,
+			breed text NOT NULL UNIQUE);`)
+
+	checkerr(err)
+
+	_, err = db.Exec(`create table if not exists dog_pictures (
+			dog_id bigserial primary key,
+			breed_id bigserial NOT NULL,
+			author text,
+			title text,
+			picture_format text NOT NULL,
+			picture_hash text NOT NULL UNIQUE,
+			picture_url text NOT NULL UNIQUE,
+			CONSTRAINT fk_breed_id
+			FOREIGN KEY (breed_id)
+			REFERENCES breed_manifest(breed_id));`)
+
+	checkerr(err)
+}