Add Parent field to Database type

Ref: https://developers.notion.com/changelog/database-objects-now-return-parent

client_test.go

@@ -214,6 +214,11 @@ func TestFindDatabaseByID(t *testing.T) {
 								"type": "files",
 								"files": {}
 							}
+						},
+						    "parent": {
+								"type": "page_id",
+								"page_id": "b8595b75-abd1-4cad-8dfe-f935a8ef57cb"
+							}
 						}
 					}`,
 				)
@@ -336,6 +341,10 @@ func TestFindDatabaseByID(t *testing.T) {
 						Type: "files",
 					},
 				},
+				Parent: notion.Parent{
+					Type:   notion.ParentTypePage,
+					PageID: "b8595b75-abd1-4cad-8dfe-f935a8ef57cb",
+				},
 			},
 			expError: nil,
 		},
@@ -622,9 +631,9 @@ func TestQueryDatabase(t *testing.T) {
 						ID:             "7c6b1c95-de50-45ca-94e6-af1d9fd295ab",
 						CreatedTime:    mustParseTime(time.RFC3339Nano, "2021-05-18T17:50:22.371Z"),
 						LastEditedTime: mustParseTime(time.RFC3339Nano, "2021-05-18T17:50:22.371Z"),
-						Parent: notion.PageParent{
+						Parent: notion.Parent{
 							Type:       notion.ParentTypeDatabase,
-							DatabaseID: notion.StringPtr("39ddfc9d-33c9-404c-89cf-79f01c42dd0c"),
+							DatabaseID: "39ddfc9d-33c9-404c-89cf-79f01c42dd0c",
 						},
 						Archived: false,
 						Properties: notion.DatabasePageProperties{
@@ -948,9 +957,9 @@ func TestFindPageByID(t *testing.T) {
 				ID:             "606ed832-7d79-46de-bbed-5b4896e7bc02",
 				CreatedTime:    mustParseTime(time.RFC3339Nano, "2021-05-19T18:34:00.000Z"),
 				LastEditedTime: mustParseTime(time.RFC3339Nano, "2021-05-19T18:34:00.000Z"),
-				Parent: notion.PageParent{
+				Parent: notion.Parent{
 					Type:   notion.ParentTypePage,
-					PageID: notion.StringPtr("b0668f48-8d66-4733-9bdb-2f82215707f7"),
+					PageID: "b0668f48-8d66-4733-9bdb-2f82215707f7",
 				},
 				Properties: notion.PageProperties{
 					Title: notion.PageTitle{
@@ -1137,9 +1146,9 @@ func TestCreatePage(t *testing.T) {
 				ID:             "276ee233-e426-4ed0-9986-6b22af8550df",
 				CreatedTime:    mustParseTime(time.RFC3339Nano, "2021-05-19T19:34:05.068Z"),
 				LastEditedTime: mustParseTime(time.RFC3339Nano, "2021-05-19T19:34:05.069Z"),
-				Parent: notion.PageParent{
+				Parent: notion.Parent{
 					Type:   notion.ParentTypePage,
-					PageID: notion.StringPtr("b0668f48-8d66-4733-9bdb-2f82215707f7"),
+					PageID: "b0668f48-8d66-4733-9bdb-2f82215707f7",
 				},
 				Properties: notion.PageProperties{
 					Title: notion.PageTitle{
@@ -1265,9 +1274,9 @@ func TestCreatePage(t *testing.T) {
 				ID:             "276ee233-e426-4ed0-9986-6b22af8550df",
 				CreatedTime:    mustParseTime(time.RFC3339Nano, "2021-05-19T19:34:05.068Z"),
 				LastEditedTime: mustParseTime(time.RFC3339Nano, "2021-05-19T19:34:05.069Z"),
-				Parent: notion.PageParent{
+				Parent: notion.Parent{
 					Type:       notion.ParentTypeDatabase,
-					DatabaseID: notion.StringPtr("b0668f48-8d66-4733-9bdb-2f82215707f7"),
+					DatabaseID: "b0668f48-8d66-4733-9bdb-2f82215707f7",
 				},
 				Properties: notion.DatabasePageProperties{
 					"title": notion.DatabasePageProperty{
@@ -1512,9 +1521,9 @@ func TestUpdatePageProps(t *testing.T) {
 				ID:             "cb261dc5-6c85-4767-8585-3852382fb466",
 				CreatedTime:    mustParseTime(time.RFC3339Nano, "2021-05-14T09:15:46.796Z"),
 				LastEditedTime: mustParseTime(time.RFC3339Nano, "2021-05-22T15:54:31.116Z"),
-				Parent: notion.PageParent{
+				Parent: notion.Parent{
 					Type:   notion.ParentTypePage,
-					PageID: notion.StringPtr("b0668f48-8d66-4733-9bdb-2f82215707f7"),
+					PageID: "b0668f48-8d66-4733-9bdb-2f82215707f7",
 				},
 				Properties: notion.PageProperties{
 					Title: notion.PageTitle{
@@ -1608,9 +1617,9 @@ func TestUpdatePageProps(t *testing.T) {
 				ID:             "e4f419a7-f01f-4d5b-af58-ff4786a429fe",
 				CreatedTime:    mustParseTime(time.RFC3339Nano, "2021-05-17T17:56:00.000Z"),
 				LastEditedTime: mustParseTime(time.RFC3339Nano, "2021-05-22T16:24:23.007Z"),
-				Parent: notion.PageParent{
+				Parent: notion.Parent{
 					Type:       notion.ParentTypeDatabase,
-					DatabaseID: notion.StringPtr("4cb17949-f08d-4d5c-ab50-fe6ba689d2c8"),
+					DatabaseID: "4cb17949-f08d-4d5c-ab50-fe6ba689d2c8",
 				},
 				Properties: notion.DatabasePageProperties{
 					"Name": notion.DatabasePageProperty{
@@ -2496,9 +2505,9 @@ func TestSearch(t *testing.T) {
 						ID:             "276ee233-e426-4ed0-9986-6b22af8550df",
 						CreatedTime:    mustParseTime(time.RFC3339Nano, "2021-05-19T19:34:05.068Z"),
 						LastEditedTime: mustParseTime(time.RFC3339Nano, "2021-05-19T19:34:05.069Z"),
-						Parent: notion.PageParent{
+						Parent: notion.Parent{
 							Type:   notion.ParentTypePage,
-							PageID: notion.StringPtr("b0668f48-8d66-4733-9bdb-2f82215707f7"),
+							PageID: "b0668f48-8d66-4733-9bdb-2f82215707f7",
 						},
 						Properties: notion.PageProperties{
 							Title: notion.PageTitle{

database.go

@@ -12,6 +12,7 @@ type Database struct {
 	LastEditedTime time.Time          `json:"last_edited_time"`
 	Title          []RichText         `json:"title"`
 	Properties     DatabaseProperties `json:"properties"`
+	Parent         Parent             `json:"parent"`
 }
 
 // DatabaseProperties is a mapping of properties defined on a database.

page.go

@@ -14,7 +14,7 @@ type Page struct {
 	ID             string    `json:"id"`
 	CreatedTime    time.Time `json:"created_time"`
 	LastEditedTime time.Time `json:"last_edited_time"`
-	Parent         PageParent `json:"parent"`
+	Parent         Parent    `json:"parent"`
 	Archived       bool      `json:"archived"`
 
 	// Properties differ between parent type.
@@ -22,13 +22,6 @@ type Page struct {
 	Properties interface{} `json:"properties"`
 }
 
-type PageParent struct {
-	Type ParentType `json:"type,omitempty"`
-
-	PageID     *string `json:"page_id,omitempty"`
-	DatabaseID *string `json:"database_id,omitempty"`
-}
-
 // PageProperties are properties of a page whose parent is a page or a workspace.
 type PageProperties struct {
 	Title PageTitle `json:"title"`
@@ -85,13 +78,6 @@ type UpdatePageParams struct {
 	Title                  []RichText
 }
 
-type ParentType string
-
-const (
-	ParentTypeDatabase ParentType = "database_id"
-	ParentTypePage     ParentType = "page_id"
-)
-
 // Value returns the underlying database page property value, based on its `type` field.
 // When type is unknown/unmapped or doesn't have a value, `nil` is returned.
 func (prop DatabasePageProperty) Value() interface{} {
@@ -158,17 +144,17 @@ func (p CreatePageParams) Validate() error {
 
 func (p CreatePageParams) MarshalJSON() ([]byte, error) {
 	type CreatePageParamsDTO struct {
-		Parent     PageParent  `json:"parent"`
+		Parent     Parent      `json:"parent"`
 		Properties interface{} `json:"properties"`
 		Children   []Block     `json:"children,omitempty"`
 	}
 
-	var parent PageParent
+	var parent Parent
 
 	if p.DatabasePageProperties != nil {
-		parent.DatabaseID = StringPtr(p.ParentID)
+		parent.DatabaseID = p.ParentID
 	} else if p.Title != nil {
-		parent.PageID = StringPtr(p.ParentID)
+		parent.PageID = p.ParentID
 	}
 
 	dto := CreatePageParamsDTO{

parent.go

@@ -0,0 +1,17 @@
+package notion
+
+type Parent struct {
+	Type ParentType `json:"type,omitempty"`
+
+	PageID     string `json:"page_id,omitempty"`
+	DatabaseID string `json:"database_id,omitempty"`
+	Workspace  bool   `json:"workspace,omitempty"`
+}
+
+type ParentType string
+
+const (
+	ParentTypeDatabase  ParentType = "database_id"
+	ParentTypePage      ParentType = "page_id"
+	ParentTypeWorkspace ParentType = "workspace"
+)