In-page addition of datapoints to triggers

main.go

@@ -21,6 +21,7 @@ import (
 	"net/http"
 	"os"
 	"path"
+	"slices"
 	"sort"
 	"strconv"
 	"time"
@@ -138,6 +139,7 @@ func main() { // {{{
 	service.Register("/triggers", false, false, pageTriggers)
 	service.Register("/trigger/edit/{id}", false, false, pageTriggerEdit)
 	service.Register("/trigger/edit/{id}/{sectionID}", false, false, pageTriggerEdit)
+	service.Register("/trigger/addDatapoint/{id}/{datapointName}", false, false, pageTriggerDatapointAdd)
 	service.Register("/trigger/update/{id}", false, false, pageTriggerUpdate)
 	service.Register("/trigger/run/{id}", false, false, pageTriggerRun)
 
@@ -725,6 +727,38 @@ func pageTriggerEdit(w http.ResponseWriter, r *http.Request, _ *session.T) { //
 
 	page.Render(w)
 } // }}}
+func pageTriggerDatapointAdd(w http.ResponseWriter, r *http.Request, _ *session.T) { // {{{
+	triggerID := r.PathValue("id")
+	dpName := r.PathValue("datapointName")
+
+	id, err := strconv.Atoi(triggerID)
+	if err != nil {
+		httpError(w, werr.Wrap(err).Log())
+		return
+	}
+
+	var trigger Trigger
+	if id > 0 {
+		trigger, err = TriggerRetrieve(id)
+		if err != nil {
+			httpError(w, werr.Wrap(err).Log())
+			return
+		}
+	}
+
+	if !slices.Contains(trigger.Datapoints, dpName) {
+		trigger.Datapoints = append(trigger.Datapoints, dpName)
+	}
+	err = trigger.Update()
+	if err != nil {
+		httpError(w, werr.Wrap(err).Log())
+		return
+	}
+
+	j, _ := json.Marshal(struct{ OK bool }{OK: true})
+	w.Header().Add("Content-Type", "application/json")
+	w.Write(j)
+} // }}}
 func pageTriggerUpdate(w http.ResponseWriter, r *http.Request, _ *session.T) { // {{{
 	idStr := r.PathValue("id")
 	id, err := strconv.Atoi(idStr)

static/js/trigger_edit.mjs

@@ -66,7 +66,7 @@ export class UI {
 			})
 			.catch(err => alert(err))
 	}//}}}
-	chooseDatapoint() {//{{{
+	async chooseDatapoint() {//{{{
 		const dlg = document.getElementById('dlg-datapoints')
 		const datapoint = document.getElementById('datapoint').value
 		const dp = this.datapoints.find(dp => dp.Name == datapoint)
@@ -77,8 +77,10 @@ export class UI {
 		}
 
 		this.trigger.addDatapoint(dp)
-		dlg.close()
-		this.render()
+			.then(() => {
+				dlg.close()
+				this.render()
+			})
 	}//}}}
 	deleteDatapoint(name) {//{{{
 		if (!confirm(`Delete ${name}?`)) {
@@ -147,7 +149,15 @@ export class Trigger {
 			})
 			.catch(err => alert(err))
 	}//}}}
-	addDatapoint(dp) {//{{{
-		this.datapoints[dp.Name] = dp
+	async addDatapoint(dp) {//{{{
+		return fetch(`/trigger/addDatapoint/${this.id}/${dp.Name}`)
+			.then(data => data.json())
+			.then(json => {
+				if (!json.OK) {
+					alert(json.Error)
+					return
+				}
+				this.datapoints[dp.Name] = dp
+			})
 	}//}}}
 }