fix: persist filter state across tab switches and clear on table replacement

Author: datlechin

TablePro/Views/Main/Extensions/MainContentCoordinator+Filtering.swift

@@ -59,6 +59,9 @@ extension MainContentCoordinator {
                 self.filterStateManager.saveLastFilters(for: capturedTableName)
             }
 
+            // Persist filter state to tab so it survives tab switches
+            self.tabManager.tabs[capturedTabIndex].filterState = self.filterStateManager.saveToTabState()
+
             self.runQuery()
         }
     }
@@ -107,6 +110,7 @@ extension MainContentCoordinator {
             }
 
             self.tabManager.tabs[capturedTabIndex].query = newQuery
+            self.tabManager.tabs[capturedTabIndex].filterState = self.filterStateManager.saveToTabState()
             self.runQuery()
         }
     }
@@ -146,6 +150,7 @@ extension MainContentCoordinator {
             }
 
             self.tabManager.tabs[capturedTabIndex].query = newQuery
+            self.tabManager.tabs[capturedTabIndex].filterState = self.filterStateManager.saveToTabState()
             self.runQuery()
         }
     }

TablePro/Views/Main/Extensions/MainContentCoordinator+Navigation.swift

@@ -113,6 +113,7 @@ extension MainContentCoordinator {
                 databaseType: connection.type,
                 databaseName: currentDatabase
             ) {
+                filterStateManager.clearAll()
                 if let tabIndex = tabManager.selectedTabIndex {
                     tabManager.tabs[tabIndex].pagination.reset()
                     toolbarState.isTableTab = true
@@ -180,6 +181,7 @@ extension MainContentCoordinator {
                     databaseName: databaseName,
                     isPreview: true
                 )
+                previewCoordinator.filterStateManager.clearAll()
                 if let tabIndex = previewCoordinator.tabManager.selectedTabIndex {
                     previewCoordinator.tabManager.tabs[tabIndex].showStructure = showStructure
                     previewCoordinator.tabManager.tabs[tabIndex].pagination.reset()
@@ -206,6 +208,7 @@ extension MainContentCoordinator {
                 databaseName: databaseName,
                 isPreview: true
             )
+            filterStateManager.clearAll()
             if let tabIndex = tabManager.selectedTabIndex {
                 tabManager.tabs[tabIndex].showStructure = showStructure
                 tabManager.tabs[tabIndex].pagination.reset()

TablePro/Views/Main/Extensions/MainContentCoordinator+TabSwitch.swift

@@ -18,12 +18,14 @@ extension MainContentCoordinator {
         isHandlingTabSwitch = true
         defer { isHandlingTabSwitch = false }
 
-        // Persist the outgoing tab's unsaved changes so they survive the switch
+        // Persist the outgoing tab's unsaved changes and filter state so they survive the switch
         if let oldId = oldTabId,
-           let oldIndex = tabManager.tabs.firstIndex(where: { $0.id == oldId }),
-           changeManager.hasChanges
+           let oldIndex = tabManager.tabs.firstIndex(where: { $0.id == oldId })
         {
-            tabManager.tabs[oldIndex].pendingChanges = changeManager.saveState()
+            if changeManager.hasChanges {
+                tabManager.tabs[oldIndex].pendingChanges = changeManager.saveState()
+            }
+            tabManager.tabs[oldIndex].filterState = filterStateManager.saveToTabState()
         }
 
         if tabManager.tabs.count > 2 {