DaxServer · DaxServer · Aug 13, 2025 · Aug 13, 2025
diff --git a/.kiro/specs/wikibase-schema-editor/tasks.md b/.kiro/specs/wikibase-schema-editor/tasks.md
@@ -200,66 +200,9 @@
   - Update validation to trigger on dragstart events
   - _Requirements: 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7_
 
-- [ ] 34. Implement autosave functionality in schema store
+- [x] 34. Implement autosave functionality in schema store
   - Write tests for immediate Pinia store updates on all schema changes
   - Write tests for isDirty flag management and lastSyncedAt tracking
   - Write tests for automatic store persistence without manual save operations
   - Implement autosave mutations in schema store for all schema operations
   - _Requirements: 10.1, 10.2, 10.8_
-
-- [ ] 35. Remove save/cancel buttons from TermsEditor component
-  - Write tests for immediate term mapping updates without save buttons
-  - Write tests for automatic language selection persistence
-  - Remove save/cancel buttons from TermsEditor interface
-  - Update TermsEditor to use autosave store mutations
-  - _Requirements: 3.6, 3.7, 10.5_
-
-- [ ] 36. Remove save/cancel buttons from StatementEditor component
-  - Write tests for immediate statement configuration updates without save buttons
-  - Write tests for automatic property selection and rank changes persistence
-  - Remove save/cancel buttons from StatementEditor interface
-  - Update StatementEditor to use autosave store mutations
-  - _Requirements: 4.7, 4.8, 5.6, 5.7, 10.5_
-
-- [ ] 37. Remove save/cancel buttons from QualifiersEditor component
-  - Write tests for immediate qualifier updates without save buttons
-  - Write tests for automatic qualifier property and value mapping persistence
-  - Remove save/cancel buttons from QualifiersEditor interface
-  - Update QualifiersEditor to use autosave store mutations
-  - _Requirements: 6.6, 6.7, 10.5_
-
-- [ ] 38. Remove save/cancel buttons from ReferencesEditor component
-  - Write tests for immediate reference updates without save buttons
-  - Write tests for automatic reference property and value mapping persistence
-  - Remove save/cancel buttons from ReferencesEditor interface
-  - Update ReferencesEditor to use autosave store mutations
-  - _Requirements: 7.6, 7.7, 10.5_
-
-- [ ] 39. Ensure existing manual backend sync works with autosave store state
-  - Write tests to verify existing backend sync functionality works with autosave-enabled store
-  - Write tests to confirm manual "Save to Server" button continues to work as currently implemented
-  - Verify existing persistence layer correctly reads from autosave-updated Pinia store state
-  - Ensure no changes to existing manual backend synchronization behavior
-  - _Requirements: 10.3, 10.4_
-
-- [ ] 40. Update drag-and-drop operations to use autosave
-  - Write tests for immediate store updates on column drop operations
-  - Write tests for automatic mapping persistence without confirmation dialogs
-  - Update all drop zone handlers to use autosave store mutations
-  - Remove any remaining save/cancel patterns from drag-and-drop workflows
-  - _Requirements: 10.1, 10.2, 10.5_
-
-- [ ] 41. Update schema selection workflow for autosave
-  - Write tests for autosave enablement when loading existing schemas
-  - Write tests for autosave enablement when creating new schemas
-  - Update SchemaSelector to initialize autosave behavior on schema selection
-  - Ensure seamless transition from selection to autosave-enabled editor
-  - _Requirements: 9.4, 9.5, 9.8_
-
-- [ ] 42. Update all existing test cases for autosave behavior
-  - Update TermsEditor tests to expect immediate store updates instead of save button interactions
-  - Update StatementEditor tests to expect automatic persistence instead of manual save operations
-  - Update QualifiersEditor and ReferencesEditor tests for autosave behavior
-  - Update drag-and-drop tests to expect immediate store persistence
-  - Update schema store tests to validate autosave mutations and dirty flag management
-  - _Requirements: 10.1, 10.2, 10.5, 10.8_
diff --git a/frontend/.eslintrc-auto-import.json b/frontend/.eslintrc-auto-import.json
@@ -49,6 +49,7 @@
     "SchemaCompletenessResult": true,
     "SchemaDragDropContext": true,
     "SchemaRequest": true,
+    "ShallowRef": true,
     "Slot": true,
     "Slots": true,
     "StatementRank": true,
@@ -106,6 +107,7 @@
     "getActivePinia": true,
     "getCurrentInstance": true,
     "getCurrentScope": true,
+    "getCurrentWatcher": true,
     "h": true,
     "ignorableWatch": true,
     "inject": true,
@@ -115,6 +117,7 @@
     "isReactive": true,
     "isReadonly": true,
     "isRef": true,
+    "isShallow": true,
     "makeDestructurable": true,
     "mapActions": true,
     "mapGetters": true,
@@ -218,7 +221,6 @@
     "useClipboardItems": true,
     "useCloned": true,
     "useColorMode": true,
-    "useColumnConversion": true,
     "useColumnDataTypeIndicators": true,
     "useColumnGeneration": true,
     "useConfirm": true,

diff --git a/frontend/auto-imports.d.ts b/frontend/auto-imports.d.ts
@@ -45,6 +45,7 @@ declare global {
   const getActivePinia: typeof import('pinia')['getActivePinia']
   const getCurrentInstance: typeof import('vue')['getCurrentInstance']
   const getCurrentScope: typeof import('vue')['getCurrentScope']
+  const getCurrentWatcher: typeof import('vue')['getCurrentWatcher']
   const h: typeof import('vue')['h']
   const ignorableWatch: typeof import('@vueuse/core')['ignorableWatch']
   const inject: typeof import('vue')['inject']
@@ -54,6 +55,7 @@ declare global {
   const isReactive: typeof import('vue')['isReactive']
   const isReadonly: typeof import('vue')['isReadonly']
   const isRef: typeof import('vue')['isRef']
+  const isShallow: typeof import('vue')['isShallow']
   const makeDestructurable: typeof import('@vueuse/core')['makeDestructurable']
   const mapActions: typeof import('pinia')['mapActions']
   const mapGetters: typeof import('pinia')['mapGetters']
@@ -157,7 +159,6 @@ declare global {
   const useClipboardItems: typeof import('@vueuse/core')['useClipboardItems']
   const useCloned: typeof import('@vueuse/core')['useCloned']
   const useColorMode: typeof import('@vueuse/core')['useColorMode']
-  const useColumnConversion: typeof import('./src/features/data-processing/composables/useColumnConversion')['useColumnConversion']
   const useColumnDataTypeIndicators: typeof import('./src/features/data-processing/composables/useColumnDataTypeIndicators')['useColumnDataTypeIndicators']
   const useColumnGeneration: typeof import('./src/features/data-processing/composables/useColumnGeneration')['useColumnGeneration']
   const useConfirm: typeof import('primevue/useconfirm')['useConfirm']
@@ -217,7 +218,6 @@ declare global {
   const useInterval: typeof import('@vueuse/core')['useInterval']
   const useIntervalFn: typeof import('@vueuse/core')['useIntervalFn']
   const useKeyModifier: typeof import('@vueuse/core')['useKeyModifier']
-  const useLanguageDropZone: typeof import('./src/features/data-processing/composables/useLanguageDropZone')['useLanguageDropZone']
   const useLastChanged: typeof import('@vueuse/core')['useLastChanged']
   const useLink: typeof import('vue-router')['useLink']
   const useLocalStorage: typeof import('@vueuse/core')['useLocalStorage']
@@ -270,7 +270,6 @@ declare global {
   const useSchemaApi: typeof import('./src/features/wikibase-schema/composables/useSchemaApi')['useSchemaApi']
   const useSchemaBuilder: typeof import('./src/features/wikibase-schema/composables/useSchemaBuilder')['useSchemaBuilder']
   const useSchemaCompletenessValidation: typeof import('./src/features/wikibase-schema/composables/useSchemaCompletenessValidation')['useSchemaCompletenessValidation']
-  const useSchemaDropZone: typeof import('./src/features/wikibase-schema/composables/useSchemaDropZone')['useSchemaDropZone']
   const useSchemaPersistence: typeof import('./src/features/wikibase-schema/composables/useSchemaPersistence')['useSchemaPersistence']
   const useSchemaSelection: typeof import('./src/features/wikibase-schema/composables/useSchemaSelection')['useSchemaSelection']
   const useSchemaStore: typeof import('./src/features/wikibase-schema/stores/schema.store')['useSchemaStore']
@@ -356,7 +355,7 @@ declare global {
 // for type re-export
 declare global {
   // @ts-ignore
-  export type { Component, Slot, Slots, ComponentPublicInstance, ComputedRef, DirectiveBinding, ExtractDefaultPropTypes, ExtractPropTypes, ExtractPublicPropTypes, InjectionKey, PropType, Ref, MaybeRef, MaybeRefOrGetter, VNode, WritableComputedRef } from 'vue'
+  export type { Component, Slot, Slots, ComponentPublicInstance, ComputedRef, DirectiveBinding, ExtractDefaultPropTypes, ExtractPropTypes, ExtractPublicPropTypes, InjectionKey, PropType, Ref, ShallowRef, MaybeRef, MaybeRefOrGetter, VNode, WritableComputedRef } from 'vue'
   import('vue')
   // @ts-ignore
   export type { FileUploadUploaderEvent } from 'primevue/fileupload'
@@ -443,6 +442,7 @@ declare module 'vue' {
     readonly getActivePinia: UnwrapRef<typeof import('pinia')['getActivePinia']>
     readonly getCurrentInstance: UnwrapRef<typeof import('vue')['getCurrentInstance']>
     readonly getCurrentScope: UnwrapRef<typeof import('vue')['getCurrentScope']>
+    readonly getCurrentWatcher: UnwrapRef<typeof import('vue')['getCurrentWatcher']>
     readonly h: UnwrapRef<typeof import('vue')['h']>
     readonly ignorableWatch: UnwrapRef<typeof import('@vueuse/core')['ignorableWatch']>
     readonly inject: UnwrapRef<typeof import('vue')['inject']>
@@ -452,6 +452,7 @@ declare module 'vue' {
     readonly isReactive: UnwrapRef<typeof import('vue')['isReactive']>
     readonly isReadonly: UnwrapRef<typeof import('vue')['isReadonly']>
     readonly isRef: UnwrapRef<typeof import('vue')['isRef']>
+    readonly isShallow: UnwrapRef<typeof import('vue')['isShallow']>
     readonly makeDestructurable: UnwrapRef<typeof import('@vueuse/core')['makeDestructurable']>
     readonly mapActions: UnwrapRef<typeof import('pinia')['mapActions']>
     readonly mapGetters: UnwrapRef<typeof import('pinia')['mapGetters']>
@@ -555,7 +556,6 @@ declare module 'vue' {
     readonly useClipboardItems: UnwrapRef<typeof import('@vueuse/core')['useClipboardItems']>
     readonly useCloned: UnwrapRef<typeof import('@vueuse/core')['useCloned']>
     readonly useColorMode: UnwrapRef<typeof import('@vueuse/core')['useColorMode']>
-    readonly useColumnConversion: UnwrapRef<typeof import('./src/features/data-processing/composables/useColumnConversion')['useColumnConversion']>
     readonly useColumnDataTypeIndicators: UnwrapRef<typeof import('./src/features/data-processing/composables/useColumnDataTypeIndicators')['useColumnDataTypeIndicators']>
     readonly useColumnGeneration: UnwrapRef<typeof import('./src/features/data-processing/composables/useColumnGeneration')['useColumnGeneration']>
     readonly useConfirm: UnwrapRef<typeof import('primevue/useconfirm')['useConfirm']>

diff --git a/frontend/components.d.ts b/frontend/components.d.ts
@@ -12,6 +12,7 @@ declare module 'vue' {
     Button: typeof import('primevue/button')['default']
     Card: typeof import('primevue/card')['default']
     Chip: typeof import('primevue/chip')['default']
+    ClaimEditor: typeof import('./src/features/wikibase-schema/components/ClaimEditor.vue')['default']
     Column: typeof import('primevue/column')['default']
     ColumnPalette: typeof import('./src/features/data-processing/components/ColumnPalette.vue')['default']
     ConfirmDialog: typeof import('primevue/confirmdialog')['default']
@@ -20,13 +21,10 @@ declare module 'vue' {
     DataTable: typeof import('primevue/datatable')['default']
     DataTabPanel: typeof import('./src/features/data-processing/components/DataTabPanel.vue')['default']
     DefaultLayout: typeof import('./src/core/layouts/DefaultLayout.vue')['default']
-    Dialog: typeof import('primevue/dialog')['default']
-    Dropdown: typeof import('primevue/dropdown')['default']
     FileUpload: typeof import('primevue/fileupload')['default']
     Header: typeof import('./src/shared/components/Header.vue')['default']
     InputText: typeof import('primevue/inputtext')['default']
     ItemEditor: typeof import('./src/features/wikibase-schema/components/ItemEditor.vue')['default']
-    LanguageDropZone: typeof import('./src/features/data-processing/components/LanguageDropZone.vue')['default']
     MainContent: typeof import('./src/shared/components/MainContent.vue')['default']
     OpenProject: typeof import('./src/features/project-management/pages/OpenProject.vue')['default']
     Paginator: typeof import('primevue/paginator')['default']
@@ -43,10 +41,12 @@ declare module 'vue' {
     SchemaTabPanel: typeof import('./src/features/wikibase-schema/components/SchemaTabPanel.vue')['default']
     Select: typeof import('primevue/select')['default']
     Sidebar: typeof import('./src/shared/components/Sidebar.vue')['default']
+    SingleQualifierEditor: typeof import('./src/features/wikibase-schema/components/SingleQualifierEditor.vue')['default']
+    SingleReferenceEditor: typeof import('./src/features/wikibase-schema/components/SingleReferenceEditor.vue')['default']
     StatementConfigEditor: typeof import('./src/features/wikibase-schema/components/StatementConfigEditor.vue')['default']
     StatementEditor: typeof import('./src/features/wikibase-schema/components/StatementEditor.vue')['default']
+    StatementManager: typeof import('./src/features/wikibase-schema/components/StatementManager.vue')['default']
     StatementPreview: typeof import('./src/features/wikibase-schema/components/StatementPreview.vue')['default']
-    StatementsEditor: typeof import('./src/features/wikibase-schema/components/StatementsEditor.vue')['default']
     Tab: typeof import('primevue/tab')['default']
     TabList: typeof import('primevue/tablist')['default']
     TabPanel: typeof import('primevue/tabpanel')['default']

diff --git a/frontend/src/features/data-processing/components/ColumnPalette.vue b/frontend/src/features/data-processing/components/ColumnPalette.vue
@@ -2,7 +2,6 @@
 const projectStore = useProjectStore()
 const dragDropStore = useDragDropStore()
 
-const { convertProjectColumnsToColumnInfo } = useColumnConversion()
 const { formatDataTypeDisplayName, generateColumnTooltip, getDataTypeIcon, getDataTypeSeverity } =
   useColumnDataTypeIndicators()
 
@@ -12,10 +11,6 @@ const { triggerDragStartValidation } = useValidation()
 // Sample data visibility state (hidden by default)
 const showSampleData = ref(false)
 
-const dataColumns = computed(() => {
-  return convertProjectColumnsToColumnInfo(projectStore.columns, projectStore.data)
-})
-
 const handleDragStart = (event: DragEvent, dataCol: ColumnInfo) => {
   if (!event.dataTransfer) return
 
@@ -50,7 +45,7 @@ const formatSampleValues = (sampleValues: string[]) => {
 </script>
 
 <template>
-  <div class="column-palette h-full p-4">
+  <div class="column-palette p-4 bg-slate-50 border border-slate-200 rounded-lg shadow-sm">
     <!-- Header with toggle switch -->
     <div class="flex justify-between items-center mb-4">
       <div>
@@ -72,66 +67,62 @@ const formatSampleValues = (sampleValues: string[]) => {
     </div>
 
     <!-- Content Area -->
-    <div>
-      <!-- Column chips -->
-      <div class="flex flex-wrap gap-3">
+    <!-- Column chips -->
+    <div class="flex gap-3">
+      <div
+        v-for="col in projectStore.columnsForSchema"
+        :key="col.name"
+        :data-testid="'column-chip'"
+        :class="{
+          'opacity-50': dragDropStore.isDragging && dragDropStore.draggedColumn?.name === col.name,
+          'cursor-grab': !dragDropStore.isDragging,
+          'cursor-grabbing':
+            dragDropStore.isDragging && dragDropStore.draggedColumn?.name === col.name,
+        }"
+        class="column-chip transition-opacity duration-200 hover:-translate-y-0.5 active:translate-y-0"
+        draggable="true"
+        @dragstart="handleDragStart($event, col)"
+        @dragend="handleDragEnd"
+      >
         <div
-          v-for="col in dataColumns"
-          :key="col.name"
-          :data-testid="'column-chip'"
-          :class="{
-            'opacity-50':
-              dragDropStore.isDragging && dragDropStore.draggedColumn?.name === col.name,
-            'cursor-grab': !dragDropStore.isDragging,
-            'cursor-grabbing':
-              dragDropStore.isDragging && dragDropStore.draggedColumn?.name === col.name,
-          }"
-          class="column-chip transition-opacity duration-200 hover:-translate-y-0.5 active:translate-y-0"
-          draggable="true"
-          @dragstart="handleDragStart($event, col)"
-          @dragend="handleDragEnd"
+          class="bg-white border border-slate-300 rounded-lg p-3 shadow-sm hover:shadow-md hover:border-blue-300 transition-all duration-200"
+          :title="generateColumnTooltip(col)"
         >
+          <div class="flex items-center gap-2">
+            <i
+              :class="getDataTypeIcon(col.dataType)"
+              class="text-surface-600 text-xs"
+              :title="`${formatDataTypeDisplayName(col.dataType)} column`"
+            />
+            <span class="font-small text-surface-900">{{ col.name }}</span>
+            <Tag
+              :value="formatDataTypeDisplayName(col.dataType)"
+              :severity="getDataTypeSeverity(col.dataType)"
+              class="text-xs"
+              :title="`Database type: ${col.dataType}`"
+            />
+            <i
+              v-if="col.nullable"
+              class="pi pi-question-circle text-surface-400 text-xs"
+              title="This column allows null values"
+            />
+          </div>
+
+          <div
+            v-if="showSampleData && col.sampleValues && col.sampleValues.length > 0"
+            class="text-xs text-surface-600"
+            data-testid="sample-values"
+            :title="`Sample values: ${col.sampleValues.slice(0, 5).join(', ')}${col.sampleValues.length > 5 ? '...' : ''}`"
+          >
+            {{ formatSampleValues(col.sampleValues) }}
+          </div>
+
           <div
-            class="bg-white border border-surface-300 rounded-lg p-3 shadow-sm hover:shadow-md transition-shadow"
-            :title="generateColumnTooltip(col)"
+            v-if="col.uniqueCount !== undefined"
+            class="text-xs text-surface-500 mt-1"
+            :title="`This column has ${col.uniqueCount.toLocaleString()} unique values`"
           >
-            <div class="flex items-center gap-2 mb-2">
-              <i
-                :class="getDataTypeIcon(col.dataType)"
-                class="text-surface-600 text-sm"
-                :title="`${formatDataTypeDisplayName(col.dataType)} column`"
-              />
-              <span class="font-medium text-surface-900">{{ col.name }}</span>
-              <Chip
-                :label="formatDataTypeDisplayName(col.dataType)"
-                size="small"
-                :severity="getDataTypeSeverity(col.dataType)"
-                class="text-xs"
-                :title="`Database type: ${col.dataType}`"
-              />
-              <i
-                v-if="col.nullable"
-                class="pi pi-question-circle text-surface-400 text-xs"
-                title="This column allows null values"
-              />
-            </div>
-
-            <div
-              v-if="showSampleData && col.sampleValues && col.sampleValues.length > 0"
-              class="text-xs text-surface-600"
-              data-testid="sample-values"
-              :title="`Sample values: ${col.sampleValues.slice(0, 5).join(', ')}${col.sampleValues.length > 5 ? '...' : ''}`"
-            >
-              {{ formatSampleValues(col.sampleValues) }}
-            </div>
-
-            <div
-              v-if="col.uniqueCount !== undefined"
-              class="text-xs text-surface-500 mt-1"
-              :title="`This column has ${col.uniqueCount.toLocaleString()} unique values`"
-            >
-              {{ col.uniqueCount.toLocaleString() }} unique values
-            </div>
+            {{ col.uniqueCount.toLocaleString() }} unique values
           </div>
         </div>
       </div>