Release 1.5.16

src/data/utils.js

@@ -130,6 +130,75 @@ function findTopLevelOrderByIndex(sql) {
   return lastOrderByIndex;
 }
 
+function findTopLevelWhereIndex(sql) {
+  const text = String(sql || '');
+  let depth = 0;
+  let inSingleQuote = false;
+  let inDoubleQuote = false;
+  let inBacktick = false;
+  let lastWhereIndex = -1;
+
+  for (let index = 0; index < text.length; index += 1) {
+    const character = text[index];
+    const previousCharacter = index > 0 ? text[index - 1] : '';
+
+    if (inSingleQuote) {
+      if (character === '\'' && previousCharacter !== '\\') {
+        inSingleQuote = false;
+      }
+      continue;
+    }
+
+    if (inDoubleQuote) {
+      if (character === '"' && previousCharacter !== '\\') {
+        inDoubleQuote = false;
+      }
+      continue;
+    }
+
+    if (inBacktick) {
+      if (character === '`') {
+        inBacktick = false;
+      }
+      continue;
+    }
+
+    if (character === '\'') {
+      inSingleQuote = true;
+      continue;
+    }
+
+    if (character === '"') {
+      inDoubleQuote = true;
+      continue;
+    }
+
+    if (character === '`') {
+      inBacktick = true;
+      continue;
+    }
+
+    if (character === '(') {
+      depth += 1;
+      continue;
+    }
+
+    if (character === ')' && depth > 0) {
+      depth -= 1;
+      continue;
+    }
+
+    if (depth === 0 && /[wW]/.test(character)) {
+      const remaining = text.slice(index);
+      if (/^where\b/i.test(remaining)) {
+        lastWhereIndex = index;
+      }
+    }
+  }
+
+  return lastWhereIndex;
+}
+
 function buildSearchFilter(searchColumns, searchTerm) {
   const columns = Array.isArray(searchColumns) ? searchColumns.map(function (column) {
     return String(column || '').trim();
@@ -175,7 +244,9 @@ async function fetchPagedRows(pool, options) {
     orderBySql = selectSql.slice(orderByIndex).trim();
   }
 
-  const filteredSelectSql = `${baseSelectSql}${searchFilter.clause}`;
+  const hasTopLevelWhere = findTopLevelWhereIndex(baseSelectSql) >= 0;
+  const searchClause = searchFilter.clause ? (hasTopLevelWhere ? searchFilter.clause.replace(/^\s*WHERE\s+/i, ' AND ') : searchFilter.clause) : '';
+  const filteredSelectSql = `${baseSelectSql}${searchClause}`;
   const countQuery = searchFilter.clause
     ? `SELECT COUNT(*) AS count FROM (${filteredSelectSql}) AS filtered_rows`
     : countSql;