añadir funicionalidades de permisos y grupos

app/Models/Group.php

@@ -0,0 +1,176 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Spatie\Permission\Traits\HasPermissions;
+use Illuminate\Database\Eloquent\Builder;
+
+class Group extends Model
+{
+    use SoftDeletes, HasPermissions;
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array
+     */
+    protected $fillable = [
+        'name',
+        'description'
+    ];
+
+    /**
+     * The accessors to append to the model's array form.
+     *
+     * @var array
+     */
+    protected $appends = ['permission_names'];
+
+    /**
+     * Relationship: Users belonging to this group
+     */
+    public function users(): BelongsToMany
+    {
+        return $this->belongsToMany(User::class)
+            ->withTimestamps()
+            ->using(GroupUser::class);
+    }
+
+    /**
+     * Relationship: Permissions assigned to this group
+     */
+    public function permissions(): BelongsToMany
+    {
+        return $this->belongsToMany(
+            config('permission.models.permission'),
+            config('permission.table_names.group_has_permissions'),
+            'group_id',
+            'permission_id'
+        );
+    }
+
+    /**
+     * Scope: Groups with specific permission
+     */
+    public function scopeWithPermission(Builder $query, $permission): Builder
+    {
+        return $query->whereHas('permissions', function ($q) use ($permission) {
+            $q->where('name', $permission);
+        });
+    }
+
+    /**
+     * Scope: Groups with permissions on specific resource
+     */
+    public function scopeWithResourcePermissions(Builder $query, $resourceId, $resourceType): Builder
+    {
+        return $query->whereHas('permissions', function ($q) use ($resourceId, $resourceType) {
+            $q->where('name', 'like', "{$resourceType}-{$resourceId}-%");
+        });
+    }
+
+    /**
+     * Assign permission to group
+     */
+    public function assignPermission($permission): self
+    {
+        if (is_string($permission)) {
+            $permission = Permission::findByName($permission);
+        }
+
+        $this->permissions()->syncWithoutDetaching($permission);
+
+        return $this;
+    }
+
+    /**
+     * Revoke permission from group
+     */
+    public function revokePermission($permission): self
+    {
+        if (is_string($permission)) {
+            $permission = Permission::findByName($permission);
+        }
+
+        $this->permissions()->detach($permission);
+
+        return $this;
+    }
+
+    /**
+     * Sync all permissions
+     */
+    public function syncPermissions($permissions): self
+    {
+        $permissionIds = collect($permissions)->map(function ($perm) {
+            return is_string($perm) ? Permission::findByName($perm)->id : $perm->id;
+        });
+
+        $this->permissions()->sync($permissionIds);
+
+        return $this;
+    }
+
+    /**
+     * Check if group has permission
+     */
+    public function hasPermission($permission): bool
+    {
+        if (is_string($permission)) {
+            return $this->permissions->contains('name', $permission);
+        }
+
+        return $this->permissions->contains('id', $permission->id);
+    }
+
+    /**
+     * Get all users with permissions through this group
+     */
+    public function getUsersWithPermissionsAttribute()
+    {
+        return User::whereHas('groups', function ($query) {
+            $query->where('groups.id', $this->id);
+        })->get();
+    }
+
+    /**
+     * Get permission names attribute
+     */
+    public function getPermissionNamesAttribute()
+    {
+        return $this->permissions->pluck('name');
+    }
+
+    /**
+     * Validation rules
+     */
+    public static function validationRules($groupId = null): array
+    {
+        return [
+            'name' => 'required|string|max:255|unique:groups,name,'.$groupId,
+            'description' => 'nullable|string|max:500',
+            'permissions' => 'array',
+            'permissions.*' => 'exists:permissions,id',
+            'users' => 'array',
+            'users.*' => 'exists:users,id'
+        ];
+    }
+
+    /**
+     * The "booting" method of the model
+     */
+    protected static function boot()
+    {
+        parent::boot();
+
+        static::deleting(function ($group) {
+            if ($group->isForceDeleting()) {
+                $group->users()->detach();
+                $group->permissions()->detach();
+            }
+        });
+    }
+}