bito-code-review[bot] commented on code in PR #36050:
URL: https://github.com/apache/superset/pull/36050#discussion_r2507780756


##########
superset-frontend/plugins/plugin-chart-pivot-table/src/react-pivottable/TableRenderers.jsx:
##########
@@ -433,11 +570,35 @@ export class TableRenderer extends Component {
         ) {
           colLabelClass += ' active';
         }
+        const { maxRowVisible: maxRowIndex, maxColVisible } = pivotSettings;
+        const visibleSortIcon = maxColVisible - 1 === attrIdx;
 
         const rowSpan = 1 + (attrIdx === colAttrs.length - 1 ? rowIncrSpan : 
0);
         const flatColKey = flatKey(colKey.slice(0, attrIdx + 1));
         const onArrowClick = needToggle ? this.toggleColKey(flatColKey) : null;
 
+        const getSortIcon = key => {

Review Comment:
   
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Sort icon state not updating due to type 
mismatch</b></div>
   <div id="fix">
   
   The getSortIcon function uses Object.keys(visibleColKeys)[i] as the key, 
which returns a string index, but activeSortColumn is a number. This type 
mismatch prevents the sort icons from toggling between unsorted, ascending, and 
descending states, breaking the sorting UI functionality. Change the parameter 
to use the numeric index i directly for proper comparison.
   </div>
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ```
    @@ -580,22 +580,22 @@
             const getSortIcon = key => {
               const { activeSortColumn, sortingOrder } = this.state;
    
               if (activeSortColumn !== key) {
                 return (
                   <FaSort
                     onClick={() =>
                       this.sortData(key, visibleColKeys, pivotData, 
maxRowIndex)
                     }
                   />
                 );
               }
    
               const SortIcon = sortingOrder[key] === 'asc' ? FaSortAsc : 
FaSortDesc;
               return (
                 <SortIcon
                   onClick={() =>
                     this.sortData(key, visibleColKeys, pivotData, maxRowIndex)
                   }
                 />
               );
             };
    +        const getSortIcon = i => {
    +          const { activeSortColumn, sortingOrder } = this.state;
    +
    +          if (activeSortColumn !== i) {
    +            return (
    +              <FaSort
    +                onClick={() =>
    +                  this.sortData(i, visibleColKeys, pivotData, maxRowIndex)
    +                }
    +              />
    +            );
    +          }
    +
    +          const SortIcon = sortingOrder[i] === 'asc' ? FaSortAsc : 
FaSortDesc;
    +          return (
    +            <SortIcon
    +              onClick={() =>
    +                this.sortData(i, visibleColKeys, pivotData, maxRowIndex)
    +              }
    +            />
    +          );
    +        };
             const headerCellFormattedValue =
             dateFormatters &&
             dateFormatters[attrName] &&
    @@ -641,1 +641,1 @@
                   {visibleSortIcon && 
getSortIcon(Object.keys(visibleColKeys)[i])}
    +              {visibleSortIcon && getSortIcon(i)}
   ```
   
   </div>
   </details>
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run <a 
href=https://github.com/apache/superset/pull/36050#issuecomment-3507808517>#534bb9</a></i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



##########
superset-frontend/plugins/plugin-chart-pivot-table/src/react-pivottable/TableRenderers.jsx:
##########
@@ -348,6 +418,72 @@ export class TableRenderer extends Component {
     return spans;
   }
 
+  calculateGroups(pivotData, visibleColKey, columnIndex) {
+    const groups = {};
+    const rows = pivotData.rowKeys;
+    rows.forEach(rowKey => {
+      let current = groups;
+      let sumGroup = 0;
+      rowKey.forEach(key => {
+        if (!current[key]) {
+          current[key] = { currentVal: 0 };
+        }
+        sumGroup += pivotData
+          .getAggregator(rowKey, visibleColKey[columnIndex])
+          .value();
+        current[key].currentVal = sumGroup;
+        current = current[key];
+      });
+    });
+    return groups;
+  }

Review Comment:
   
   <div>
   
   
   <div id="suggestion">
   <div id="issue"><b>Wrong value accumulation in group calculation</b></div>
   <div id="fix">
   
   In calculateGroups, the currentVal is set using a cumulative sumGroup that 
adds the same aggregator value multiple times for each level in the rowKey 
hierarchy. This leads to incorrect values for nested groups and leaves, 
breaking hierarchical sorting calculations. Move the aggregator call outside 
the loop and use += to accumulate properly.
   </div>
   
   <details>
   <summary>
   <b>Code suggestion</b>
   </summary>
   <blockquote>Check the AI-generated fix before applying</blockquote>
   <div id="code">
   
   
   ````suggestion
     calculateGroups(pivotData, visibleColKey, columnIndex) {
       const groups = {};
       const rows = pivotData.rowKeys;
       rows.forEach(rowKey => {
         let current = groups;
         rowKey.forEach(key => {
           if (!current[key]) {
             current[key] = { currentVal: 0 };
           }
           current[key].currentVal += pivotData
             .getAggregator(rowKey, visibleColKey[columnIndex])
             .value();
           current = current[key];
         });
       });
       return groups;
     }
   ````
   
   </div>
   </details>
   
   
   </div>
   
   
   
   
   <small><i>Code Review Run <a 
href=https://github.com/apache/superset/pull/36050#issuecomment-3507808517>#534bb9</a></i></small>
   </div>
   
   ---
   Should Bito avoid suggestions like this for future reviews? (<a 
href=https://alpha.bito.ai/home/ai-agents/review-rules>Manage Rules</a>)
   - [ ] Yes, avoid them



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