fix redirect and null exceptioin on dashboard screen

src/main/java/com/utopiaindustries/controller/ReportingController.java

@@ -11,6 +11,7 @@ import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 
 import java.time.LocalDate;
 import java.util.ArrayList;
@@ -45,7 +46,11 @@ public class ReportingController {
 
     @GetMapping( "/job-card-report")
     public String jobCardReport(@RequestParam( value = "job-card-id", required = false ) String jobCardId,
-                                Model model ){
+                                Model model, RedirectAttributes redirectAttributes ){
+        if( jobCardId == null || jobCardId.isEmpty()) {
+            redirectAttributes.addFlashAttribute("error", "Please Re-Select Job Card" );
+            return "/reporting/job-card-report";
+        }
         model.addAttribute("totalProduction",  reportingService.getTotalProduction(jobCardId));
         model.addAttribute("phasesTimes",  reportingService.getEachPhaseTotalTime(jobCardId));
         model.addAttribute("segregateItems",  reportingService.getSegregateItems(jobCardId));

src/main/resources/templates/reporting/job-card-report.html

@@ -12,7 +12,7 @@
         <div class="col-sm">
         <table class="table " >
             <tbody>
-            <tr>
+            <tr th:if="${jobCardProgress != null }">
                 <td style="padding:0px;">
                     <div style="border: 2px solid #d5d8dc; padding: 10px; border-radius: 10px; height: 370px;">
                         <h1 style="text-align: center;">Job Card Report</h1>
@@ -54,7 +54,7 @@
                     </div>
                 </td>
             </tr>
-            <tr>
+            <tr th:if="${phasesTimes != null }">
                 <td style="display: flex; flex-direction: column; align-items: center; border: none !important; outline: none;">
                         <div style="display: flex; gap: 10px;">
                             <div th:each="phase, index : ${phasesTimes.keySet()}" style="border: 2px solid #d5d8dc; border-radius: 10px; text-align: center;  padding:20px;">
@@ -65,7 +65,7 @@
                         </div>
                 </td>
             </tr>
-            <tr th:if="${cuttingDetails != null and cuttingDetails.get('accounts') != null}">
+            <tr th:if="${cuttingDetails != null && cuttingDetails.get('accounts') != null}">
                 <td style="padding: 0px; text-align: center;">
                     <div style="background-color: black; color: white; padding: 10px; font-size: 18px; font-weight: bold; text-align: center;">
                         Cutting Detail
@@ -96,7 +96,7 @@
                 </td>
             </tr>
 
-            <tr th:if="${stitchingDetails != null and stitchingDetails.get('accounts') != null}">
+            <tr th:if="${stitchingDetails != null && stitchingDetails.get('accounts') != null}">
                 <td style="padding: 0px; text-align: center; ">
                     <div style="background-color: black; color: white; padding: 10px; font-size: 18px; font-weight: bold; text-align: center;">
                         Stitching Detail
@@ -127,7 +127,7 @@
                     </table>
                 </td>
             </tr>
-            <tr th:if="${dailyProgress.get('dates') != null}">
+            <tr th:if="${dailyProgress != null}">
                 <td style="padding-left: 150px;">
                     <div style="border: 2px solid #d5d8dc; padding-top: 10px; border-radius: 10px; height: 560px; width: 80%; overflow-x: auto;">
                         <div id="barChart" class="barChart" style="height: 500px; width: 1600px;"