调整数据库表的单复数

app/Models/System/City.php

@@ -9,40 +9,35 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
 class City extends Model
 {
     use ModelTrait;
-    protected $table = 'system_cities';
+    protected $table = 'system_city';
 
     protected $fillable = [
-        'parent_id',
-        'name',
+        'title',
         'code',
-        'pinyin',
-        'pinyin_short',
-        'level',
-        'sort',
-        'status',
-    ];
-
-    protected $casts = [
-        'parent_id' => 'integer',
-        'level' => 'integer',
-        'sort' => 'integer',
-        'status' => 'boolean',
+        'parent_code',
     ];
 
+    /**
+     * 子级城市
+     */
     public function children(): HasMany
     {
-        return $this->hasMany(City::class, 'parent_id')->orderBy('sort');
-    }
-
-    public function activeChildren(): HasMany
-    {
-        return $this->hasMany(City::class, 'parent_id')
-            ->where('status', true)
-            ->orderBy('sort');
+        return $this->hasMany(City::class, 'parent_code', 'code');
     }
 
+    /**
+     * 父级城市
+     */
     public function parent()
     {
-        return $this->belongsTo(City::class, 'parent_id');
+        return $this->belongsTo(City::class, 'parent_code', 'code');
+    }
+
+    /**
+     * 判断是否是顶级城市（省/直辖市/自治区）
+     */
+    public function isTopLevel(): bool
+    {
+        return empty($this->parent_code);
     }
 }

app/Models/System/Config.php

@@ -10,7 +10,7 @@ class Config extends Model
 {
     use ModelTrait, SoftDeletes;
 
-    protected $table = 'system_configs';
+    protected $table = 'system_setting';
 
     protected $fillable = [
         'group',

app/Models/System/Dictionary.php

@@ -11,7 +11,7 @@ class Dictionary extends Model
 {
     use ModelTrait, SoftDeletes;
 
-    protected $table = 'system_dictionaries';
+    protected $table = 'system_dictionary';
 
     protected $fillable = [
         'name',

app/Models/System/DictionaryItem.php

@@ -9,7 +9,7 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
 class DictionaryItem extends Model
 {
     use ModelTrait;
-    protected $table = 'system_dictionary_items';
+    protected $table = 'system_dictionary_item';
 
     protected $fillable = [
         'dictionary_id',

app/Models/System/Log.php

@@ -9,7 +9,7 @@ use Illuminate\Database\Eloquent\Relations\BelongsTo;
 class Log extends Model
 {
     use ModelTrait;
-    protected $table = 'system_logs';
+    protected $table = 'system_log';
 
     protected $fillable = [
         'user_id',

app/Models/System/Notification.php

@@ -11,7 +11,7 @@ class Notification extends Model
 {
     use ModelTrait, SoftDeletes;
 
-    protected $table = 'system_notifications';
+    protected $table = 'system_notification';
 
     protected $fillable = [
         'user_id',

app/Models/System/Task.php

@@ -10,7 +10,7 @@ class Task extends Model
 {
     use ModelTrait, SoftDeletes;
 
-    protected $table = 'system_tasks';
+    protected $table = 'system_task';
 
     protected $fillable = [
         'name',