adding server handling

Database/os.go

@@ -33,7 +33,7 @@ func GetOS(db *sql.DB) ([]OS, error) {
 	return oses, err
 }
 
-func GetOSbyID(db *sql.DB, id string) (OS, error) {
+func GetOSbyID(db *sql.DB, id int64) (OS, error) {
 	var os OS
 	if err := db.QueryRow("SELECT * FROM dashboard_os where id = ?", id).Scan(&os.ID, &os.Distribution, &os.Version, &os.End_of_support); err != nil {
 		if err == sql.ErrNoRows {

Database/server.go

@@ -0,0 +1,57 @@
+package database
+
+import (
+	"database/sql"
+	"log"
+)
+
+type Server struct {
+	ID       int    `json:"id"`
+	Hostname string `json:"hostname"`
+	Os_id    int    `json:"os_id"`
+}
+
+func GetServersList(db *sql.DB) ([]Server, error) {
+	var servers []Server
+	rows, err := db.Query("SELECT * FROM dashboard_server")
+	if err != nil {
+		log.Println("Error querying servers list", err)
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var s Server
+		err := rows.Scan(&s.ID, &s.Hostname, &s.Os_id)
+		if err != nil {
+			log.Println("Error building servers list", err)
+		}
+		servers = append(servers, s)
+	}
+	return servers, err
+}
+
+func GetServersbyID(db *sql.DB, id int64) Server {
+	var s Server
+	rows := db.QueryRow("SELECT * FROM dashboard_server WHERE id = ?", id)
+	rows.Scan(&s.ID, &s.Hostname, &s.Os_id)
+	return s
+}
+
+func GetServersbyOS(db *sql.DB, id int) ([]Server, error) {
+	var servers []Server
+	rows, err := db.Query("SELECT * FROM dashboard_server WHERE os_id = ?", id)
+	if err != nil {
+		log.Println("Error querying servers list by os_id", err)
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var s Server
+		err := rows.Scan(&s.ID, &s.Hostname, &s.Os_id)
+		if err != nil {
+			log.Println("Error building servers list", err)
+		}
+		servers = append(servers, s)
+	}
+	return servers, err
+}