add 'id' (positive 'int') type checker

internal/checker/default/id/main.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"git.xdrm.io/go/aicra/driver"
+	"math"
+)
+
+func main()                  {}
+func Export() driver.Checker { return new(IdChecker) }
+
+type IdChecker int
+
+// Match matches the string 'id'
+func (ick IdChecker) Match(name string) bool {
+	return name == "id"
+}
+
+// Check returns true for any type from the @validationTable
+func (ick IdChecker) Check(value interface{}) bool {
+
+	// check if float (default wrapping type)
+	floatVal, ok := value.(float64)
+	if !ok {
+		return false
+	}
+
+	// check if there is no floating point
+	return floatVal == math.Floor(floatVal) && floatVal > 0
+
+}