normalized the caster to return always non-null value and fixed minor ui issues

models/record_test.go

@@ -118,7 +118,7 @@ func TestNewRecordFromNullStringMap(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	expected := `{"@collectionId":"","@collectionName":"test","created":"2022-01-01 10:00:00.123","field1":"test","field2":null,"field3":true,"field4":123.123,"field5":"test1","field6":["test"],"id":"c23eb053-d07e-4fbe-86b3-b8ac31982e9a","updated":"2022-01-01 10:00:00.456"}`
+	expected := `{"@collectionId":"","@collectionName":"test","created":"2022-01-01 10:00:00.123","field1":"test","field2":"","field3":true,"field4":123.123,"field5":"test1","field6":["test"],"id":"c23eb053-d07e-4fbe-86b3-b8ac31982e9a","updated":"2022-01-01 10:00:00.456"}`
 
 	if string(encoded) != expected {
 		t.Fatalf("Expected %v, got \n%v", expected, string(encoded))
@@ -185,10 +185,10 @@ func TestNewRecordsFromNullStringMaps(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	expected := `[{"@collectionId":"","@collectionName":"test","created":"2022-01-01 10:00:00.123","field1":"test1","field2":null,"id":"11111111-d07e-4fbe-86b3-b8ac31982e9a","updated":"2022-01-01 10:00:00.456"},{"@collectionId":"","@collectionName":"test","created":"","field1":"test2","field2":123,"id":"22222222-d07e-4fbe-86b3-b8ac31982e9a","updated":""}]`
+	expected := `[{"@collectionId":"","@collectionName":"test","created":"2022-01-01 10:00:00.123","field1":"test1","field2":0,"id":"11111111-d07e-4fbe-86b3-b8ac31982e9a","updated":"2022-01-01 10:00:00.456"},{"@collectionId":"","@collectionName":"test","created":"","field1":"test2","field2":123,"id":"22222222-d07e-4fbe-86b3-b8ac31982e9a","updated":""}]`
 
 	if string(encoded) != expected {
-		t.Fatalf("Expected %v, got \n%v", expected, string(encoded))
+		t.Fatalf("Expected \n%v, got \n%v", expected, string(encoded))
 	}
 }
 

models/schema/schema_field.go

@@ -218,31 +218,19 @@ func (f *SchemaField) PrepareValue(value any) any {
 	f.InitOptions()
 
 	switch f.Type {
-	case FieldTypeText, FieldTypeEmail, FieldTypeUrl: // string
-		if value == nil {
-			return nil
-		}
+	case FieldTypeText, FieldTypeEmail, FieldTypeUrl:
 		return cast.ToString(value)
-	case FieldTypeJson: // string
-		if value == nil {
-			return nil
-		}
+	case FieldTypeJson:
 		val, _ := types.ParseJsonRaw(value)
 		return val
-	case FieldTypeNumber: // nil, int or float
-		if value == nil {
-			return nil
-		}
+	case FieldTypeNumber:
 		return cast.ToFloat64(value)
-	case FieldTypeBool: // bool
+	case FieldTypeBool:
 		return cast.ToBool(value)
-	case FieldTypeDate: // string, DateTime or time.Time
-		if value == nil {
-			return nil
-		}
+	case FieldTypeDate:
 		val, _ := types.ParseDateTime(value)
 		return val
-	case FieldTypeSelect: // nil, string or slice of strings
+	case FieldTypeSelect:
 		val := list.ToUniqueStringSlice(value)
 
 		options, _ := f.Options.(*SelectOptions)
@@ -250,11 +238,11 @@ func (f *SchemaField) PrepareValue(value any) any {
 			if len(val) > 0 {
 				return val[0]
 			}
-			return nil
+			return ""
 		}
 
 		return val
-	case FieldTypeFile: // nil, string or slice of strings
+	case FieldTypeFile:
 		val := list.ToUniqueStringSlice(value)
 
 		options, _ := f.Options.(*FileOptions)
@@ -262,11 +250,11 @@ func (f *SchemaField) PrepareValue(value any) any {
 			if len(val) > 0 {
 				return val[0]
 			}
-			return nil
+			return ""
 		}
 
 		return val
-	case FieldTypeRelation: // nil, string or slice of strings
+	case FieldTypeRelation:
 		ids := list.ToUniqueStringSlice(value)
 
 		options, _ := f.Options.(*RelationOptions)
@@ -274,11 +262,11 @@ func (f *SchemaField) PrepareValue(value any) any {
 			if len(ids) > 0 {
 				return ids[0]
 			}
-			return nil
+			return ""
 		}
 
 		return ids
-	case FieldTypeUser: // nil, string or slice of strings
+	case FieldTypeUser:
 		ids := list.ToUniqueStringSlice(value)
 
 		options, _ := f.Options.(*UserOptions)
@@ -286,7 +274,7 @@ func (f *SchemaField) PrepareValue(value any) any {
 			if len(ids) > 0 {
 				return ids[0]
 			}
-			return nil
+			return ""
 		}
 
 		return ids

models/schema/schema_field_test.go

@@ -498,19 +498,22 @@ func TestSchemaFieldPrepareValue(t *testing.T) {
 		{schema.SchemaField{Type: "unknown"}, []int{1, 2, 1}, "[1,2,1]"},
 
 		// text
-		{schema.SchemaField{Type: schema.FieldTypeText}, nil, `null`},
+		{schema.SchemaField{Type: schema.FieldTypeText}, nil, `""`},
+		{schema.SchemaField{Type: schema.FieldTypeText}, "", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeText}, []int{1, 2}, `""`},
 		{schema.SchemaField{Type: schema.FieldTypeText}, "test", `"test"`},
 		{schema.SchemaField{Type: schema.FieldTypeText}, 123, `"123"`},
 
 		// email
-		{schema.SchemaField{Type: schema.FieldTypeEmail}, nil, `null`},
+		{schema.SchemaField{Type: schema.FieldTypeEmail}, nil, `""`},
+		{schema.SchemaField{Type: schema.FieldTypeEmail}, "", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeEmail}, []int{1, 2}, `""`},
 		{schema.SchemaField{Type: schema.FieldTypeEmail}, "test", `"test"`},
 		{schema.SchemaField{Type: schema.FieldTypeEmail}, 123, `"123"`},
 
 		// url
-		{schema.SchemaField{Type: schema.FieldTypeUrl}, nil, `null`},
+		{schema.SchemaField{Type: schema.FieldTypeUrl}, nil, `""`},
+		{schema.SchemaField{Type: schema.FieldTypeUrl}, "", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeUrl}, []int{1, 2}, `""`},
 		{schema.SchemaField{Type: schema.FieldTypeUrl}, "test", `"test"`},
 		{schema.SchemaField{Type: schema.FieldTypeUrl}, 123, `"123"`},
@@ -523,7 +526,9 @@ func TestSchemaFieldPrepareValue(t *testing.T) {
 		{schema.SchemaField{Type: schema.FieldTypeJson}, []int{1, 2, 1}, `[1,2,1]`},
 
 		// number
-		{schema.SchemaField{Type: schema.FieldTypeNumber}, nil, "null"},
+		{schema.SchemaField{Type: schema.FieldTypeNumber}, nil, "0"},
+		{schema.SchemaField{Type: schema.FieldTypeNumber}, "", "0"},
+		{schema.SchemaField{Type: schema.FieldTypeNumber}, "test", "0"},
 		{schema.SchemaField{Type: schema.FieldTypeNumber}, 1, "1"},
 		{schema.SchemaField{Type: schema.FieldTypeNumber}, 1.5, "1.5"},
 		{schema.SchemaField{Type: schema.FieldTypeNumber}, "1.5", "1.5"},
@@ -533,22 +538,24 @@ func TestSchemaFieldPrepareValue(t *testing.T) {
 		{schema.SchemaField{Type: schema.FieldTypeBool}, 1, "true"},
 		{schema.SchemaField{Type: schema.FieldTypeBool}, 0, "false"},
 		{schema.SchemaField{Type: schema.FieldTypeBool}, "", "false"},
+		{schema.SchemaField{Type: schema.FieldTypeBool}, "test", "false"},
 		{schema.SchemaField{Type: schema.FieldTypeBool}, "false", "false"},
 		{schema.SchemaField{Type: schema.FieldTypeBool}, "true", "true"},
 		{schema.SchemaField{Type: schema.FieldTypeBool}, false, "false"},
 		{schema.SchemaField{Type: schema.FieldTypeBool}, true, "true"},
 
 		// date
-		{schema.SchemaField{Type: schema.FieldTypeDate}, nil, "null"},
+		{schema.SchemaField{Type: schema.FieldTypeDate}, nil, `""`},
 		{schema.SchemaField{Type: schema.FieldTypeDate}, "", `""`},
+		{schema.SchemaField{Type: schema.FieldTypeDate}, "test", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeDate}, 1641024040, `"2022-01-01 08:00:40.000"`},
 		{schema.SchemaField{Type: schema.FieldTypeDate}, "2022-01-01 11:27:10.123", `"2022-01-01 11:27:10.123"`},
 		{schema.SchemaField{Type: schema.FieldTypeDate}, types.DateTime{}, `""`},
 		{schema.SchemaField{Type: schema.FieldTypeDate}, time.Time{}, `""`},
 
 		// select (single)
-		{schema.SchemaField{Type: schema.FieldTypeSelect}, nil, `null`},
-		{schema.SchemaField{Type: schema.FieldTypeSelect}, "", `null`},
+		{schema.SchemaField{Type: schema.FieldTypeSelect}, nil, `""`},
+		{schema.SchemaField{Type: schema.FieldTypeSelect}, "", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeSelect}, 123, `"123"`},
 		{schema.SchemaField{Type: schema.FieldTypeSelect}, "test", `"test"`},
 		{schema.SchemaField{Type: schema.FieldTypeSelect}, []string{"test1", "test2"}, `"test1"`},
@@ -624,8 +631,8 @@ func TestSchemaFieldPrepareValue(t *testing.T) {
 		},
 
 		// file (single)
-		{schema.SchemaField{Type: schema.FieldTypeFile}, nil, `null`},
-		{schema.SchemaField{Type: schema.FieldTypeFile}, "", `null`},
+		{schema.SchemaField{Type: schema.FieldTypeFile}, nil, `""`},
+		{schema.SchemaField{Type: schema.FieldTypeFile}, "", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeFile}, 123, `"123"`},
 		{schema.SchemaField{Type: schema.FieldTypeFile}, "test", `"test"`},
 		{schema.SchemaField{Type: schema.FieldTypeFile}, []string{"test1", "test2"}, `"test1"`},
@@ -690,8 +697,8 @@ func TestSchemaFieldPrepareValue(t *testing.T) {
 		},
 
 		// relation (single)
-		{schema.SchemaField{Type: schema.FieldTypeRelation}, nil, `null`},
-		{schema.SchemaField{Type: schema.FieldTypeRelation}, "", `null`},
+		{schema.SchemaField{Type: schema.FieldTypeRelation}, nil, `""`},
+		{schema.SchemaField{Type: schema.FieldTypeRelation}, "", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeRelation}, 123, `"123"`},
 		{schema.SchemaField{Type: schema.FieldTypeRelation}, "abc", `"abc"`},
 		{schema.SchemaField{Type: schema.FieldTypeRelation}, "1ba88b4f-e9da-42f0-9764-9a55c953e724", `"1ba88b4f-e9da-42f0-9764-9a55c953e724"`},
@@ -761,8 +768,8 @@ func TestSchemaFieldPrepareValue(t *testing.T) {
 		},
 
 		// user (single)
-		{schema.SchemaField{Type: schema.FieldTypeUser}, nil, `null`},
-		{schema.SchemaField{Type: schema.FieldTypeUser}, "", `null`},
+		{schema.SchemaField{Type: schema.FieldTypeUser}, nil, `""`},
+		{schema.SchemaField{Type: schema.FieldTypeUser}, "", `""`},
 		{schema.SchemaField{Type: schema.FieldTypeUser}, 123, `"123"`},
 		{schema.SchemaField{Type: schema.FieldTypeUser}, "1ba88b4f-e9da-42f0-9764-9a55c953e724", `"1ba88b4f-e9da-42f0-9764-9a55c953e724"`},
 		{