bulk data load methods for space and document views

domain/category/endpoint.go

@@ -112,6 +112,7 @@ func (h *Handler) Get(w http.ResponseWriter, r *http.Request) {
 
 	cat, err := h.Store.Category.GetBySpace(ctx, spaceID)
 	if err != nil && err != sql.ErrNoRows {
+		h.Runtime.Log.Error("get space categories visible to user failed", err)
 		response.WriteServerError(w, method, err)
 		return
 	}
@@ -460,3 +461,66 @@ func (h *Handler) GetSpaceCategoryMembers(w http.ResponseWriter, r *http.Request
 
 	response.WriteJSON(w, cat)
 }
+
+// FetchSpaceData returns:
+// 1. categories that user can see for given space
+// 2. summary data for each category
+// 3. category viewing membership records
+func (h *Handler) FetchSpaceData(w http.ResponseWriter, r *http.Request) {
+	method := "category.FetchSpaceData"
+	ctx := domain.GetRequestContext(r)
+
+	spaceID := request.Param(r, "spaceID")
+	if len(spaceID) == 0 {
+		response.WriteMissingDataError(w, method, "spaceID")
+		return
+	}
+
+	ok := permission.HasPermission(ctx, *h.Store, spaceID, pm.SpaceManage, pm.SpaceOwner, pm.SpaceView)
+	if !ok {
+		response.WriteForbiddenError(w)
+		return
+	}
+
+	fetch := category.FetchSpaceModel{}
+
+	// get space categories visible to user
+	cat, err := h.Store.Category.GetBySpace(ctx, spaceID)
+	if err != nil && err != sql.ErrNoRows {
+		h.Runtime.Log.Error("get space categories visible to user failed", err)
+		response.WriteServerError(w, method, err)
+		return
+	}
+	if len(cat) == 0 {
+		cat = []category.Category{}
+	}
+
+	// summary of space category usage
+	summary, err := h.Store.Category.GetSpaceCategorySummary(ctx, spaceID)
+	if err != nil {
+		h.Runtime.Log.Error("get space category summary failed", err)
+		response.WriteServerError(w, method, err)
+		return
+	}
+	if len(summary) == 0 {
+		summary = []category.SummaryModel{}
+	}
+
+	// get category membership records
+	member, err := h.Store.Category.GetSpaceCategoryMembership(ctx, spaceID)
+	if err != nil && err != sql.ErrNoRows {
+		h.Runtime.Log.Error("get document category membership for space", err)
+		response.WriteServerError(w, method, err)
+		return
+	}
+
+	if len(member) == 0 {
+		member = []category.Member{}
+	}
+
+	fetch.Category = cat
+	fetch.Summary = summary
+	fetch.Membership = member
+
+	response.WriteJSON(w, fetch)
+}

domain/document/endpoint.go

@@ -29,7 +29,9 @@ import (
 	"github.com/documize/community/model/audit"
 	"github.com/documize/community/model/doc"
 	"github.com/documize/community/model/link"
+	pm "github.com/documize/community/model/permission"
 	"github.com/documize/community/model/search"
+	"github.com/documize/community/model/space"
 )
 
 // Handler contains the runtime information such as logging and database.
@@ -371,3 +373,104 @@ func (h *Handler) SearchDocuments(w http.ResponseWriter, r *http.Request) {
 
 	response.WriteJSON(w, results)
 }
+
+// FetchDocumentData returns all document data in single API call.
+func (h *Handler) FetchDocumentData(w http.ResponseWriter, r *http.Request) {
+	method := "document.FetchDocumentData"
+	ctx := domain.GetRequestContext(r)
+
+	id := request.Param(r, "documentID")
+	if len(id) == 0 {
+		response.WriteMissingDataError(w, method, "documentID")
+		return
+	}
+
+	// document
+	document, err := h.Store.Document.Get(ctx, id)
+	if err == sql.ErrNoRows {
+		response.WriteNotFoundError(w, method, id)
+		return
+	}
+	if err != nil {
+		response.WriteServerError(w, method, err)
+		h.Runtime.Log.Error(method, err)
+		return
+	}
+
+	if !permission.CanViewSpaceDocument(ctx, *h.Store, document.LabelID) {
+		response.WriteForbiddenError(w)
+		return
+	}
+
+	// permissions
+	perms, err := h.Store.Permission.GetUserSpacePermissions(ctx, document.LabelID)
+	if err != nil && err != sql.ErrNoRows {
+		response.WriteServerError(w, method, err)
+		return
+	}
+	if len(perms) == 0 {
+		perms = []pm.Permission{}
+	}
+
+	record := pm.DecodeUserPermissions(perms)
+
+	// links
+	l, err := h.Store.Link.GetDocumentOutboundLinks(ctx, id)
+	if len(l) == 0 {
+		l = []link.Link{}
+	}
+	if err != nil && err != sql.ErrNoRows {
+		response.WriteServerError(w, method, err)
+		h.Runtime.Log.Error(method, err)
+		return
+	}
+
+	// spaces
+	sp, err := h.Store.Space.GetViewable(ctx)
+	if err != nil && err != sql.ErrNoRows {
+		response.WriteServerError(w, method, err)
+		h.Runtime.Log.Error(method, err)
+		return
+	}
+	if len(sp) == 0 {
+		sp = []space.Space{}
+	}
+
+	data := documentData{}
+	data.Document = document
+	data.Permissions = record
+	data.Links = l
+	data.Spaces = sp
+
+	ctx.Transaction, err = h.Runtime.Db.Beginx()
+	if err != nil {
+		response.WriteServerError(w, method, err)
+		h.Runtime.Log.Error(method, err)
+		return
+	}
+
+	err = h.Store.Activity.RecordUserActivity(ctx, activity.UserActivity{
+		LabelID:      document.LabelID,
+		SourceID:     document.RefID,
+		SourceType:   activity.SourceTypeDocument,
+		ActivityType: activity.TypeRead})
+
+	if err != nil {
+		h.Runtime.Log.Error(method, err)
+	}
+
+	h.Store.Audit.Record(ctx, audit.EventTypeDocumentView)
+
+	ctx.Transaction.Commit()
+
+	response.WriteJSON(w, data)
+}
+
+// documentData represents all data associated for a single document.
+// Used by FetchDocumentData() bulk data load call.
+type documentData struct {
+	Document    doc.Document  `json:"document"`
+	Permissions pm.Record     `json:"permissions"`
+	Spaces      []space.Space `json:"folders"`
+	Links       []link.Link   `json:"link"`
+}