FEX-4347 Add filtering for dynamic field

filter.go

@@ -2,6 +2,7 @@ package relay
 
 import (
 	"errors"
+	"fmt"
 	"reflect"
 	"strconv"
 	"strings"
@@ -271,14 +272,48 @@ func markRecords(filterConditions string, val reflect.Value, arraySlice map[int]
 						return nil, errors.New("Filter [" + ColumnStruct[1] + "] Column is not primitive type")
 					}
 
+				} else if CurField.Kind() == reflect.Slice {
+					if len(ColumnStruct) < 2 {
+						continue
+					}
+					fieldName := ColumnStruct[1]
+					if fieldName == "" {
+						return nil, errors.New("Filter applied to slice column but inner field not specified")
+					}
+
+					for i := 0; i < CurField.Len(); i++ {
+						item := CurField.Index(i)
+
+						bMatched, err = itemMatches(item, fieldName, Key, Op)
+						if err != nil {
+							return nil, err
+						}
+					}
 				}
+
 				arraySlice[k] = DataSet{bMatched: bMatched, CurRec: arraySlice[k].CurRec}
 			}
 		}
 	}
 	return arraySlice, nil
 }
 
+func itemMatches(item reflect.Value, fieldName, key, op string) (bool, error) {
+	if !item.IsValid() {
+		return false, fmt.Errorf("Filter [%s] No such column exist!!!", fieldName)
+	}
+
+	if item.FieldByName("ID").String() != fieldName {
+		return false, nil
+	}
+
+	if !isPrimitive(item.FieldByName("Value")) {
+		return false, fmt.Errorf("Filter [%s] Value is not primitive type", fieldName)
+	}
+
+	return processPrimitive(item.FieldByName("Value"), key, op)
+}
+
 func isPrimitive(CurField reflect.Value) bool {
 	switch CurField.Kind() {
 	case reflect.Bool, reflect.String, reflect.Float32, reflect.Float64, reflect.Int, reflect.Int32, reflect.Int64: