refactor with improved developer ux in mind

- Most functions now live directly in the dbx package
- dbxp and dbxm are now ONLY the few functions that cannot be shared

utility.go

@@ -1,9 +1,25 @@
 package dbx
 
 import (
+	"strings"
+
 	"github.com/go-jet/jet/v2/mysql"
 )
 
+// StringToFilter processes a string to be used as a filter in an SQL LIKE
+// statement. It replaces all spaces with % and adds % to the beginning and
+// end of the string.
+func StringToFilter(str string) string {
+	// Remove any existing leading or trailing % characters
+	str = strings.Trim(str, "%")
+
+	// Replace all spaces with % and add % to the beginning and end of the string
+	str = strings.ReplaceAll(str, " ", "%")
+	str = "%" + str + "%"
+
+	return str
+}
+
 // ExprID converts a list of uint64 values to a list of mysql.Expression values
 func ExprID(ids []uint64) []mysql.Expression {
 	expressions := make([]mysql.Expression, len(ids))