Version 3 starter

backend/internal/database/helpers.go

@@ -0,0 +1,46 @@
+package database
+
+import (
+	"fmt"
+	"strings"
+
+	"npm/internal/errors"
+	"npm/internal/model"
+	"npm/internal/util"
+)
+
+const (
+	// DateFormat for DateFormat
+	DateFormat = "2006-01-02"
+	// DateTimeFormat for DateTimeFormat
+	DateTimeFormat = "2006-01-02T15:04:05"
+)
+
+// GetByQuery returns a row given a query, populating the model given
+func GetByQuery(model interface{}, query string, params []interface{}) error {
+	db := GetInstance()
+	if db != nil {
+		err := db.Get(model, query, params...)
+		return err
+	}
+
+	return errors.ErrDatabaseUnavailable
+}
+
+// BuildOrderBySQL takes a `Sort` slice and constructs a query fragment
+func BuildOrderBySQL(columns []string, sort *[]model.Sort) (string, []model.Sort) {
+	var sortStrings []string
+	var newSort []model.Sort
+	for _, sortItem := range *sort {
+		if util.SliceContainsItem(columns, sortItem.Field) {
+			sortStrings = append(sortStrings, fmt.Sprintf("`%s` %s", sortItem.Field, sortItem.Direction))
+			newSort = append(newSort, sortItem)
+		}
+	}
+
+	if len(sortStrings) > 0 {
+		return fmt.Sprintf("ORDER BY %s", strings.Join(sortStrings, ", ")), newSort
+	}
+
+	return "", newSort
+}