Release v2.19.0: indexed content references

test/template-default-dependencies.test.js

@@ -5,12 +5,25 @@ const { getDataSourceUsageMaps: getRssUsage } = require('../src/web/routes/data-
 const { getDataSourceUsageMaps: getTimetableUsage } = require('../src/web/routes/data-sources/timetables/routes');
 const { getWeatherLocationUsageIds } = require('../src/web/routes/data-sources/weather');
 const { isWeatherIconSetUsed } = require('../src/web/routes/settings/weather-icons');
+const { collectContentReferences } = require('../src/data/content-references');
 
 function createPool(slideContent, templateContent) {
+  const references = collectContentReferences('slide', 1, { slide: slideContent })
+    .concat(collectContentReferences('template', 2, { region: templateContent }));
   return {
-    async query(sql) {
-      if (sql.includes('FROM c_slides')) return [[{ content_json: JSON.stringify(slideContent) }]];
-      return [[{ default_content_json: JSON.stringify(templateContent) }]];
+    async query(sql, params) {
+      if (!sql.includes('FROM c_content_references')) throw new Error('Unexpected query: ' + sql);
+      const referenceType = params[0];
+      const matching = references.filter(function (reference) {
+        return reference.reference_type === referenceType && (params.length < 2 || reference.reference_value === String(params[1]));
+      });
+      if (sql.includes('COUNT(DISTINCT')) return [[{ owner_count: matching.length ? 1 : 0 }]];
+      if (sql.includes('GROUP BY reference_value')) {
+        const counts = new Map();
+        matching.forEach(function (reference) { counts.set(reference.reference_value, (counts.get(reference.reference_value) || 0) + 1); });
+        return [Array.from(counts, ([reference_value, owner_count]) => ({ reference_value, owner_count }))];
+      }
+      return [Array.from(new Set(matching.map(reference => reference.reference_value)), reference_value => ({ reference_value }))];
     }
   };
 }