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vendor/topthink/think-orm/src/model/concern/SoftDelete.php

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+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+declare (strict_types = 1);
+
+namespace think\model\concern;
+
+use think\db\BaseQuery as Query;
+use think\Model;
+
+/**
+ * 数据软删除
+ * @mixin Model
+ * @method $this withTrashed()
+ * @method $this onlyTrashed()
+ */
+trait SoftDelete
+{
+
+    public function db($scope = []): Query
+    {
+        $query = parent::db($scope);
+        $this->withNoTrashed($query);
+        return $query;
+    }
+
+    /**
+     * 判断当前实例是否被软删除
+     * @access public
+     * @return bool
+     */
+    public function trashed(): bool
+    {
+        $field = $this->getDeleteTimeField();
+
+        if ($field && !empty($this->getOrigin($field))) {
+            return true;
+        }
+
+        return false;
+    }
+
+    public function scopeWithTrashed(Query $query)
+    {
+        $query->removeOption('soft_delete');
+    }
+
+    public function scopeOnlyTrashed(Query $query)
+    {
+        $field = $this->getDeleteTimeField(true);
+
+        if ($field) {
+            $query->useSoftDelete($field, $this->getWithTrashedExp());
+        }
+    }
+
+    /**
+     * 获取软删除数据的查询条件
+     * @access protected
+     * @return array
+     */
+    protected function getWithTrashedExp(): array
+    {
+        return is_null($this->defaultSoftDelete) ? ['notnull', ''] : ['<>', $this->defaultSoftDelete];
+    }
+
+    /**
+     * 删除当前的记录
+     * @access public
+     * @return bool
+     */
+    public function delete(): bool
+    {
+        if (!$this->isExists() || $this->isEmpty() || false === $this->trigger('BeforeDelete')) {
+            return false;
+        }
+
+        $name  = $this->getDeleteTimeField();
+        $force = $this->isForce();
+
+        if ($name && !$force) {
+            // 软删除
+            $this->set($name, $this->autoWriteTimestamp());
+
+            $this->exists()->withEvent(false)->save();
+
+            $this->withEvent(true);
+        } else {
+            // 读取更新条件
+            $where = $this->getWhere();
+
+            // 删除当前模型数据
+            $this->db()
+                ->where($where)
+                ->removeOption('soft_delete')
+                ->delete();
+
+            $this->lazySave(false);
+        }
+
+        // 关联删除
+        if (!empty($this->relationWrite)) {
+            $this->autoRelationDelete($force);
+        }
+
+        $this->trigger('AfterDelete');
+
+        $this->exists(false);
+
+        return true;
+    }
+
+    /**
+     * 删除记录
+     * @access public
+     * @param mixed $data 主键列表 支持闭包查询条件
+     * @param bool $force 是否强制删除
+     * @return bool
+     */
+    public static function destroy($data, bool $force = false): bool
+    {
+        // 传入空值（包括空字符串和空数组）的时候不会做任何的数据删除操作，但传入0则是有效的
+        if (empty($data) && 0 !== $data) {
+            return false;
+        }
+        $model = (new static());
+
+        $query = $model->db(false);
+
+        // 仅当强制删除时包含软删除数据
+        if ($force) {
+            $query->removeOption('soft_delete');
+        }
+
+        if (is_array($data) && key($data) !== 0) {
+            $query->where($data);
+            $data = null;
+        } elseif ($data instanceof \Closure) {
+            call_user_func_array($data, [&$query]);
+            $data = null;
+        } elseif (is_null($data)) {
+            return false;
+        }
+
+        $resultSet = $query->select($data);
+
+        foreach ($resultSet as $result) {
+            /** @var Model $result */
+            $result->force($force)->delete();
+        }
+
+        return true;
+    }
+
+    /**
+     * 恢复被软删除的记录
+     * @access public
+     * @param array $where 更新条件
+     * @return bool
+     */
+    public function restore($where = []): bool
+    {
+        $name = $this->getDeleteTimeField();
+
+        if (!$name || false === $this->trigger('BeforeRestore')) {
+            return false;
+        }
+
+        if (empty($where)) {
+            $pk = $this->getPk();
+            if (is_string($pk)) {
+                $where[] = [$pk, '=', $this->getData($pk)];
+            }
+        }
+
+        // 恢复删除
+        $this->db(false)
+            ->where($where)
+            ->useSoftDelete($name, $this->getWithTrashedExp())
+            ->update([$name => $this->defaultSoftDelete]);
+
+        $this->trigger('AfterRestore');
+
+        return true;
+    }
+
+    /**
+     * 获取软删除字段
+     * @access protected
+     * @param bool $read 是否查询操作 写操作的时候会自动去掉表别名
+     * @return string|false
+     */
+    protected function getDeleteTimeField(bool $read = false)
+    {
+        $field = property_exists($this, 'deleteTime') && isset($this->deleteTime) ? $this->deleteTime : 'delete_time';
+
+        if (false === $field) {
+            return false;
+        }
+
+        if (false === strpos($field, '.')) {
+            $field = '__TABLE__.' . $field;
+        }
+
+        if (!$read && strpos($field, '.')) {
+            $array = explode('.', $field);
+            $field = array_pop($array);
+        }
+
+        return $field;
+    }
+
+    /**
+     * 查询的时候默认排除软删除数据
+     * @access protected
+     * @param Query $query
+     * @return void
+     */
+    protected function withNoTrashed(Query $query): void
+    {
+        $field = $this->getDeleteTimeField(true);
+
+        if ($field) {
+            $condition = is_null($this->defaultSoftDelete) ? ['null', ''] : ['=', $this->defaultSoftDelete];
+            $query->useSoftDelete($field, $condition);
+        }
+    }
+}