| 1 | package sheets |
| 2 | |
| 3 | import ( |
| 4 | "net/http" |
| 5 | "strconv" |
| 6 | ) |
| 7 | |
| 8 | // handleViewSave stores a tab's sort and filter. |
| 9 | // |
| 10 | // Editor, not viewer: the view is persisted on the tab and everybody |
| 11 | // looking at that tab sees it, so changing it changes what colleagues |
| 12 | // see. That is a write, and it is gated like one. |
| 13 | func (a *App) handleViewSave(w http.ResponseWriter, r *http.Request) { |
| 14 | s, ok := a.sheetFromURL(w, r) |
| 15 | if !ok { |
| 16 | return |
| 17 | } |
| 18 | viewer, ok := a.actor(r) |
| 19 | if !ok { |
| 20 | a.notFound(w, r) |
| 21 | return |
| 22 | } |
| 23 | if !a.mayWrite(s.ID, viewer) { |
| 24 | a.notFound(w, r) |
| 25 | return |
| 26 | } |
| 27 | |
| 28 | spec := emptyView() |
| 29 | if v := r.FormValue("sortCol"); v != "" && v != "-1" { |
| 30 | n, err := strconv.Atoi(v) |
| 31 | if err != nil { |
| 32 | a.tableRedirect(w, r, s) |
| 33 | return |
| 34 | } |
| 35 | spec.SortCol = n |
| 36 | spec.SortDsc = r.FormValue("sortDesc") != "" |
| 37 | } |
| 38 | if v := r.FormValue("filterCol"); v != "" && v != "-1" { |
| 39 | n, err := strconv.Atoi(v) |
| 40 | if err != nil { |
| 41 | a.tableRedirect(w, r, s) |
| 42 | return |
| 43 | } |
| 44 | spec.FilterCol = n |
| 45 | spec.FilterOp = r.FormValue("filterOp") |
| 46 | spec.FilterVal = r.FormValue("filterVal") |
| 47 | } |
| 48 | // An invalid spec leaves the stored one alone rather than clearing |
| 49 | // it: losing somebody's filter because they mistyped a column is a |
| 50 | // worse answer than ignoring the submission. |
| 51 | if err := spec.Validate(); err != nil { |
| 52 | if wantsNative(r) { |
| 53 | http.Error(w, "Invalid sort or filter.", 400) |
| 54 | return |
| 55 | } |
| 56 | a.tableRedirect(w, r, s) |
| 57 | return |
| 58 | } |
| 59 | if err := a.saveView(s.TabID, spec, viewer); err != nil { |
| 60 | a.fail(w, r, err) |
| 61 | return |
| 62 | } |
| 63 | a.tableRedirect(w, r, s) |
| 64 | } |
| 65 | |
| 66 | func (a *App) tableRedirect(w http.ResponseWriter, r *http.Request, s SheetSummary) { |
| 67 | if nativeNotice(w, r, "saved") { |
| 68 | return |
| 69 | } |
| 70 | http.Redirect(w, r, "/sheets/"+strconv.FormatUint(s.ID, 10)+"/table", http.StatusSeeOther) |
| 71 | } |
| 72 | |
amadan