add model package with db queries

model/items.go

@@ -0,0 +1,21 @@
+package model
+
+import "fmt"
+
+func (m *Model) GetItems() ([]*Item, error) {
+	rows, err := m.db.Queryx("SELECT * FROM items")
+	if err != nil {
+		return nil, fmt.Errorf("couldn't query db: %v", err)
+	}
+
+	items := []*Item{}
+	for rows.Next() {
+		item := &Item{}
+		if err := rows.StructScan(&item); err != nil {
+			continue
+		}
+		items = append(items, item)
+	}
+
+	return items, nil
+}