diff --git a/app/schemas/com.hippo.ehviewer.dao.EhDatabase/8.json b/app/schemas/com.hippo.ehviewer.dao.EhDatabase/8.json
new file mode 100644
index 000000000..c160a04f5
--- /dev/null
+++ b/app/schemas/com.hippo.ehviewer.dao.EhDatabase/8.json
@@ -0,0 +1,448 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 8,
+    "identityHash": "f09bae277bbdab54ecbb0d698c83e734",
+    "entities": [
+      {
+        "tableName": "DOWNLOADS",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`STATE` INTEGER NOT NULL, `LEGACY` INTEGER NOT NULL, `TIME` INTEGER NOT NULL, `LABEL` TEXT, `GID` INTEGER NOT NULL, `TOKEN` TEXT, `TITLE` TEXT, `TITLE_JPN` TEXT, `THUMB` TEXT, `CATEGORY` INTEGER NOT NULL, `POSTED` TEXT, `UPLOADER` TEXT, `RATING` REAL NOT NULL, `SIMPLE_LANGUAGE` TEXT, PRIMARY KEY(`GID`))",
+        "fields": [
+          {
+            "fieldPath": "state",
+            "columnName": "STATE",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "legacy",
+            "columnName": "LEGACY",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "time",
+            "columnName": "TIME",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "label",
+            "columnName": "LABEL",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "gid",
+            "columnName": "GID",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "token",
+            "columnName": "TOKEN",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "title",
+            "columnName": "TITLE",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "titleJpn",
+            "columnName": "TITLE_JPN",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "thumbKey",
+            "columnName": "THUMB",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "category",
+            "columnName": "CATEGORY",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "posted",
+            "columnName": "POSTED",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uploader",
+            "columnName": "UPLOADER",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "rating",
+            "columnName": "RATING",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "simpleLanguage",
+            "columnName": "SIMPLE_LANGUAGE",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "GID"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "DOWNLOAD_LABELS",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`_id` INTEGER, `LABEL` TEXT, `TIME` INTEGER NOT NULL, PRIMARY KEY(`_id`))",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "_id",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "label",
+            "columnName": "LABEL",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "time",
+            "columnName": "TIME",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "_id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "DOWNLOAD_DIRNAME",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`GID` INTEGER NOT NULL, `DIRNAME` TEXT NOT NULL, PRIMARY KEY(`GID`))",
+        "fields": [
+          {
+            "fieldPath": "gid",
+            "columnName": "GID",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "dirname",
+            "columnName": "DIRNAME",
+            "affinity": "TEXT",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "GID"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "FILTER",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`MODE` INTEGER NOT NULL, `TEXT` TEXT NOT NULL, `ENABLE` INTEGER NOT NULL, `_id` INTEGER, PRIMARY KEY(`_id`))",
+        "fields": [
+          {
+            "fieldPath": "mode",
+            "columnName": "MODE",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "text",
+            "columnName": "TEXT",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "enable",
+            "columnName": "ENABLE",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "id",
+            "columnName": "_id",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "_id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "HISTORY",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`TIME` INTEGER NOT NULL, `MODE` INTEGER NOT NULL, `GID` INTEGER NOT NULL, `TOKEN` TEXT, `TITLE` TEXT, `TITLE_JPN` TEXT, `THUMB` TEXT, `CATEGORY` INTEGER NOT NULL, `POSTED` TEXT, `UPLOADER` TEXT, `RATING` REAL NOT NULL, `SIMPLE_LANGUAGE` TEXT, PRIMARY KEY(`GID`))",
+        "fields": [
+          {
+            "fieldPath": "time",
+            "columnName": "TIME",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "favoriteSlotBackingField",
+            "columnName": "MODE",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "gid",
+            "columnName": "GID",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "token",
+            "columnName": "TOKEN",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "title",
+            "columnName": "TITLE",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "titleJpn",
+            "columnName": "TITLE_JPN",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "thumbKey",
+            "columnName": "THUMB",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "category",
+            "columnName": "CATEGORY",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "posted",
+            "columnName": "POSTED",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uploader",
+            "columnName": "UPLOADER",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "rating",
+            "columnName": "RATING",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "simpleLanguage",
+            "columnName": "SIMPLE_LANGUAGE",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "GID"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "LOCAL_FAVORITES",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`TIME` INTEGER NOT NULL, `GID` INTEGER NOT NULL, `TOKEN` TEXT, `TITLE` TEXT, `TITLE_JPN` TEXT, `THUMB` TEXT, `CATEGORY` INTEGER NOT NULL, `POSTED` TEXT, `UPLOADER` TEXT, `RATING` REAL NOT NULL, `SIMPLE_LANGUAGE` TEXT, PRIMARY KEY(`GID`))",
+        "fields": [
+          {
+            "fieldPath": "time",
+            "columnName": "TIME",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "gid",
+            "columnName": "GID",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "token",
+            "columnName": "TOKEN",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "title",
+            "columnName": "TITLE",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "titleJpn",
+            "columnName": "TITLE_JPN",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "thumbKey",
+            "columnName": "THUMB",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "category",
+            "columnName": "CATEGORY",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "posted",
+            "columnName": "POSTED",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uploader",
+            "columnName": "UPLOADER",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "rating",
+            "columnName": "RATING",
+            "affinity": "REAL",
+            "notNull": true
+          },
+          {
+            "fieldPath": "simpleLanguage",
+            "columnName": "SIMPLE_LANGUAGE",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "GID"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "QUICK_SEARCH",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`_id` INTEGER, `NAME` TEXT, `MODE` INTEGER NOT NULL, `CATEGORY` INTEGER NOT NULL, `KEYWORD` TEXT, `ADVANCE_SEARCH` INTEGER NOT NULL, `MIN_RATING` INTEGER NOT NULL, `PAGE_FROM` INTEGER NOT NULL, `PAGE_TO` INTEGER NOT NULL, `TIME` INTEGER NOT NULL, PRIMARY KEY(`_id`))",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "_id",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "NAME",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "mode",
+            "columnName": "MODE",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "category",
+            "columnName": "CATEGORY",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "keyword",
+            "columnName": "KEYWORD",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "advanceSearch",
+            "columnName": "ADVANCE_SEARCH",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "minRating",
+            "columnName": "MIN_RATING",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "pageFrom",
+            "columnName": "PAGE_FROM",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "pageTo",
+            "columnName": "PAGE_TO",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "time",
+            "columnName": "TIME",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "_id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, 'f09bae277bbdab54ecbb0d698c83e734')"
+    ]
+  }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/hippo/ehviewer/client/EhFilter.kt b/app/src/main/java/com/hippo/ehviewer/client/EhFilter.kt
index 6c95e6769..d528c228b 100644
--- a/app/src/main/java/com/hippo/ehviewer/client/EhFilter.kt
+++ b/app/src/main/java/com/hippo/ehviewer/client/EhFilter.kt
@@ -22,7 +22,7 @@ import com.hippo.ehviewer.EhDB
 import com.hippo.ehviewer.client.data.GalleryInfo
 import com.hippo.ehviewer.dao.Filter
 
-private val regex = { p: Filter -> Regex(p.text!!) }.memoize()
+private val regex = { p: Filter -> Regex(p.text) }.memoize()
 
 object EhFilter {
     val titleFilterList = mutableStateListOf<Filter>()
@@ -47,17 +47,17 @@ object EhFilter {
     private fun memorizeFilter(filter: Filter) {
         when (filter.mode) {
             MODE_TITLE -> {
-                filter.text = filter.text!!.lowercase()
+                filter.text = filter.text.lowercase()
                 titleFilterList.add(filter)
             }
 
             MODE_TAG -> {
-                filter.text = filter.text!!.lowercase()
+                filter.text = filter.text.lowercase()
                 tagFilterList.add(filter)
             }
 
             MODE_TAG_NAMESPACE -> {
-                filter.text = filter.text!!.lowercase()
+                filter.text = filter.text.lowercase()
                 tagNamespaceFilterList.add(filter)
             }
 
@@ -113,10 +113,10 @@ object EhFilter {
     }
 
     fun needTags() = tagFilterList.isNotEmpty() || tagNamespaceFilterList.isNotEmpty()
-    fun filterTitle(info: GalleryInfo) = titleFilterList.any { it.enable!! && it.text!! in info.title.orEmpty().lowercase() }
-    fun filterUploader(info: GalleryInfo) = uploaderFilterList.any { it.enable!! && it.text == info.uploader }
-    fun filterTag(info: GalleryInfo) = info.simpleTags?.any { tag -> tagFilterList.any { it.enable!! && matchTag(tag, it.text!!) } } ?: false
-    fun filterTagNamespace(info: GalleryInfo) = info.simpleTags?.any { tag -> tagNamespaceFilterList.any { it.enable!! && matchTagNamespace(tag, it.text!!) } } ?: false
-    fun filterCommenter(commenter: String) = commenterFilterList.any { it.enable!! && it.text == commenter }
-    fun filterComment(comment: String) = commentFilterList.any { it.enable!! && regex(it).containsMatchIn(comment) }
+    fun filterTitle(info: GalleryInfo) = titleFilterList.any { it.enable && it.text in info.title.orEmpty().lowercase() }
+    fun filterUploader(info: GalleryInfo) = uploaderFilterList.any { it.enable && it.text == info.uploader }
+    fun filterTag(info: GalleryInfo) = info.simpleTags?.any { tag -> tagFilterList.any { it.enable && matchTag(tag, it.text) } } ?: false
+    fun filterTagNamespace(info: GalleryInfo) = info.simpleTags?.any { tag -> tagNamespaceFilterList.any { it.enable && matchTagNamespace(tag, it.text) } } ?: false
+    fun filterCommenter(commenter: String) = commenterFilterList.any { it.enable && it.text == commenter }
+    fun filterComment(comment: String) = commentFilterList.any { it.enable && regex(it).containsMatchIn(comment) }
 }
diff --git a/app/src/main/java/com/hippo/ehviewer/dao/Database.kt b/app/src/main/java/com/hippo/ehviewer/dao/Database.kt
index bd2d4834b..3d6dc9ee8 100644
--- a/app/src/main/java/com/hippo/ehviewer/dao/Database.kt
+++ b/app/src/main/java/com/hippo/ehviewer/dao/Database.kt
@@ -32,7 +32,7 @@ class ThumbKeyMigration : AutoMigrationSpec {
 
 @Database(
     entities = [DownloadInfo::class, DownloadLabel::class, DownloadDirname::class, Filter::class, HistoryInfo::class, LocalFavoriteInfo::class, QuickSearch::class],
-    version = 7,
+    version = 8,
     exportSchema = true,
     autoMigrations = [
         AutoMigration(
@@ -49,6 +49,10 @@ class ThumbKeyMigration : AutoMigrationSpec {
             to = 7,
             spec = DropBookMarkDao::class,
         ),
+        AutoMigration(
+            from = 7,
+            to = 8,
+        ),
     ],
 )
 abstract class EhDatabase : RoomDatabase() {
diff --git a/app/src/main/java/com/hippo/ehviewer/dao/Filter.kt b/app/src/main/java/com/hippo/ehviewer/dao/Filter.kt
index fc53bfc70..d065a566d 100644
--- a/app/src/main/java/com/hippo/ehviewer/dao/Filter.kt
+++ b/app/src/main/java/com/hippo/ehviewer/dao/Filter.kt
@@ -10,10 +10,10 @@ data class Filter(
     var mode: Int = 0,
 
     @ColumnInfo(name = "TEXT")
-    var text: String? = null,
+    var text: String = "INVALID",
 
     @ColumnInfo(name = "ENABLE")
-    var enable: Boolean? = null,
+    var enable: Boolean = true,
 
     @PrimaryKey
     @ColumnInfo(name = "_id")