refactoring

docs/SymptomsCausedByVaccines/js/PrrByVaccineTable.js

@@ -3,6 +3,7 @@ class PrrByVaccineTable {
     #tableElement;
     #table;
     #sumPrrs;
+    #prrByVaccine;
 
     constructor(tableElement) {
         this.#tableElement = tableElement;
@@ -13,10 +14,23 @@ class PrrByVaccineTable {
     }
 
     display(prrByVaccine) {
+        this.#prrByVaccine = prrByVaccine;
         const vaccine_prr_pairs = Object.entries(prrByVaccine);
         this.#setTableRows(vaccine_prr_pairs);
     }
 
+    getDisplayedTableAsCsv(heading) {
+        return PrrByKey2CsvConverter.convertPrrByKey2Csv(
+            {
+                heading: heading,
+                columns: {
+                    keyColumn: 'Vaccine',
+                    prrColumn: 'Proportional Reporting Ratio'
+                },
+                prrByKey: this.#prrByVaccine
+            });
+    }
+
     #createEmptyTable() {
         return this.#tableElement.DataTable(
             {

docs/SymptomsCausedByVaccines/js/PrrByVaccineTableView.js

@@ -35,17 +35,7 @@ class PrrByVaccineTableView {
         UIUtils.downloadUrlAsFilename(
             window.URL.createObjectURL(
                 new Blob(
-                    [
+                    [this.#prrByVaccineTable.getDisplayedTableAsCsv('# Symptom: ' + this.#symptom)],
-                        PrrByKey2CsvConverter.convertPrrByKey2Csv(
-                            {
-                                heading: '# Symptom: ' + this.#symptom,
-                                columns: {
-                                    keyColumn: 'Vaccine',
-                                    prrColumn: 'Proportional Reporting Ratio'
-                                },
-                                prrByKey: this.#prrByVaccine
-                            })
-                    ],
                     { type: 'text/csv' })),
             this.#symptom
         );