implemented copy page facility

core/api/endpoint/page_endpoint.go

@@ -669,9 +669,38 @@ func GetDocumentPageMeta(w http.ResponseWriter, r *http.Request) {
 	writeSuccessBytes(w, json)
 }
 
-/********************
-* Page Revisions
-********************/
+// GetPageMoveCopyTargets returns available documents for page copy/move axction.
+func GetPageMoveCopyTargets(w http.ResponseWriter, r *http.Request) {
+	method := "GetPageMoveCopyTargets"
+	p := request.GetPersister(r)
+
+	var d []entity.Document
+	var err error
+
+	d, err = p.GetDocumentList()
+
+	if len(d) == 0 {
+		d = []entity.Document{}
+	}
+
+	if err != nil {
+		writeGeneralSQLError(w, method, err)
+		return
+	}
+
+	json, err := json.Marshal(d)
+
+	if err != nil {
+		writeJSONMarshalError(w, method, "document", err)
+		return
+	}
+
+	writeSuccessBytes(w, json)
+}
+
+//**************************************************
+// Page Revisions
+//**************************************************
 
 // GetDocumentRevisions returns all changes for a document.
 func GetDocumentRevisions(w http.ResponseWriter, r *http.Request) {
@@ -897,3 +926,102 @@ func RollbackDocumentPage(w http.ResponseWriter, r *http.Request) {
 
 	writeSuccessBytes(w, payload)
 }
+
+//**************************************************
+// Copy Move Page
+//**************************************************
+
+// CopyPage copies page to either same or different document.
+func CopyPage(w http.ResponseWriter, r *http.Request) {
+	method := "CopyPage"
+	p := request.GetPersister(r)
+
+	params := mux.Vars(r)
+	documentID := params["documentID"]
+	pageID := params["pageID"]
+	targetID := params["targetID"]
+
+	// data checks
+	if len(documentID) == 0 {
+		writeMissingDataError(w, method, "documentID")
+		return
+	}
+	if len(pageID) == 0 {
+		writeMissingDataError(w, method, "pageID")
+		return
+	}
+	if len(targetID) == 0 {
+		writeMissingDataError(w, method, "targetID")
+		return
+	}
+
+	// permission
+	if !p.CanViewDocument(documentID) {
+		writeForbiddenError(w)
+		return
+	}
+
+	// fetch data
+	page, err := p.GetPage(pageID)
+	if err == sql.ErrNoRows {
+		writeNotFoundError(w, method, documentID)
+		return
+	}
+	if err != nil {
+		writeGeneralSQLError(w, method, err)
+		return
+	}
+
+	pageMeta, err := p.GetPageMeta(pageID)
+	if err == sql.ErrNoRows {
+		writeNotFoundError(w, method, documentID)
+		return
+	}
+	if err != nil {
+		writeGeneralSQLError(w, method, err)
+		return
+	}
+
+	newPageID := util.UniqueID()
+	page.RefID = newPageID
+	page.Level = 1
+	page.DocumentID = targetID
+	page.UserID = p.Context.UserID
+	pageMeta.DocumentID = targetID
+	pageMeta.PageID = newPageID
+	pageMeta.UserID = p.Context.UserID
+
+	model := new(models.PageModel)
+	model.Meta = pageMeta
+	model.Page = page
+
+	tx, err := request.Db.Beginx()
+	if err != nil {
+		writeTransactionError(w, method, err)
+		return
+	}
+	p.Context.Transaction = tx
+
+	err = p.AddPage(*model)
+	if err != nil {
+		log.IfErr(tx.Rollback())
+		writeGeneralSQLError(w, method, err)
+		return
+	}
+
+	if len(model.Page.BlockID) > 0 {
+		p.IncrementBlockUsage(model.Page.BlockID)
+	}
+
+	log.IfErr(tx.Commit())
+
+	newPage, _ := p.GetPage(pageID)
+	json, err := json.Marshal(newPage)
+
+	if err != nil {
+		writeJSONMarshalError(w, method, "page", err)
+		return
+	}
+
+	writeSuccessBytes(w, json)
+}