318 lines
9.6 KiB
PHP
318 lines
9.6 KiB
PHP
<?php
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/**
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* 后台tree（左侧菜单，菜单列表，权限操作）相关
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* @author yupoxiong<i@yufuping.com>
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*/
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namespace generate\util;
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use app\admin\model\AdminUser;
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trait Tree
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{
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public $text, $html;
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/**
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* 生成树型结构所需要的2维数组
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* @var array
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*/
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public $array;
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/**
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* 生成树型结构所需修饰符号，可以换成图片
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* @var array
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*/
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public $icon = array('│', '├', '└');
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public $space = ' ';
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/**
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* @access private
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*/
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public $ret = '';
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/**
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* 构造函数，初始化类
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* @param array $arr
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* @return bool
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*/
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public function initTree($arr=[])
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{
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$this->array = $arr;
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$this->ret = '';
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$this->html = '';
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return is_array($arr);
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}
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/**
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* 得到树型结构
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* @param int $my_id ，表示获得这个ID下的所有子级
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* @param string $str 生成树型结构的基本代码，例如："<option value=\$id \$selected>\$spacer\$name</option>"
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* @param int $sid 被选中的ID，比如在做树型下拉框的时候需要用到
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* @param string $adds
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* @param string $str_group
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* @return string
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*/
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public function getTree($my_id, $str, $sid = 0, $adds = '', $str_group = '')
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{
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$parent_id = '';
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$nstr = '';
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$number = 1;
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$child = $this->getChild($my_id);
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if (is_array($child)) {
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$total = count($child);
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foreach ($child as $id => $value) {
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$j = $k = '';
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if ($number == $total) {
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$j .= $this->icon[2];
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} else {
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$j .= $this->icon[1];
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$k = $adds ? $this->icon[0] : '';
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}
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$spacer = $adds ? $adds . $j : '';
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$selected = $id == $sid ? 'selected' : '';
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@extract($value);
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$parent_id == 0 && $str_group ? eval("\$nstr = \"$str_group\";") : eval("\$nstr = \"$str\";");
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$this->ret .= $nstr;
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$space = $this->space;
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$this->getTree($id, $str, $sid, $adds . $k . $space, $str_group);
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$number++;
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}
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}
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return $this->ret;
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}
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/**
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* 获取后台左侧菜单
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* @param $my_id
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* @param $current_id
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* @param $parent_ids
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* @return mixed
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*/
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public function get_authTree($my_id, $current_id, $parent_ids)
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{
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$nstr = '';
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$child = $this->getChild($my_id);
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if (is_array($child)) {
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$menu = current($child);
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//获取当前等级的html
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$text = isset($this->text[$menu['level']]) ? $this->text[$menu['level']] : end($this->text);
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foreach ($child as $k => $v) {
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@extract($v);
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//如果有下级菜单
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if ($this->getChild($k)) {
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if (array_search($k, $parent_ids, true) !== false) {
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//如果下级菜单是当前页面
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eval("\$nstr = \"$text[1]\";");
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$this->html .= $nstr;
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} else {
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//如果下级菜单不是当前页面
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eval("\$nstr = \"$text[0]\";");
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$this->html .= $nstr;
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}
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self::get_authTree($k, $current_id, $parent_ids);
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eval("\$nstr = \"$text[2]\";");
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$this->html .= $nstr;
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} else {
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//顶级菜单，只有一级
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if ($k == $current_id) {
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$a = $this->text['current'];
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eval("\$nstr = \"$a\";");
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$this->html .= $nstr;
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} else {
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$a = $this->text['other'];
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eval("\$nstr = \"$a\";");
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$this->html .= $nstr;
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}
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}
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}
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}
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return $this->html;
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}
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/**
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* 得到子级数组
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* @param int $pid
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* @return bool|array
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*/
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public function getChild($pid)
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{
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$result = [];
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foreach ($this->array as $key => $value) {
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if ($value['parent_id'] == $pid)
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$result[$key] = $value;
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}
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return $result ?? false;
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}
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/**
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* 递归获取级别
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* @param int $id ID
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* @param array $array 所有菜单
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* @param int $i 所在级别
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* @return int
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*/
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public function getLevel($id, $array, $i = 0)
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{
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if ($array[$id]['parent_id'] == 0 || empty($array[$array[$id]['parent_id']]) || $array[$id]['parent_id'] == $id) {
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return $i;
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} else {
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$i++;
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return self::getLevel($array[$id]['parent_id'], $array, $i);
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}
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}
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//获取权限树
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public function getAuthTreeAccess($my_id)
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{
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$id = '';
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$nstr = '';
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$child = $this->getChild($my_id);
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if (is_array($child)) {
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$level = current($child);
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$text = isset($this->text[$level['level']]) ? $this->text[$level['level']] : end($this->text);
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foreach ($child as $k => $v) {
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@extract($v);
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if ($this->getChild($k)) {
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eval("\$nstr = \"$text[0]\";");
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$this->html .= $nstr;
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self::getAuthTreeAccess($k);
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eval("\$nstr = \"$text[1]\";");
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$this->html .= $nstr;
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} else {
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$a = $this->text['other'];
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eval("\$nstr = \"$a\";");
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$this->html .= $nstr;
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}
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}
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}
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return $this->html;
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}
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/**
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* 获取左侧菜单
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* @param $user AdminUser
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* @return mixed
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*/
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protected function getLeftMenu($user)
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{
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$menu = $user->getShowMenu();
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$max_level = 0;
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$current_id = 1;
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$parent_ids = array(0 => 0);
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foreach ($menu as $k => $v) {
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if ($v['url'] == $this->url) {
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$parent_ids = $this->getMenuParent($menu, $v['id']);
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$current_id = $v['id'];
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}
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}
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if ($parent_ids == false) {
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$parent_ids = array(0 => 0);
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}
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foreach ($menu as $k => $v) {
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$url = url($v['url']);
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$menu[$k]['icon'] = $v['icon'];
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$menu[$k]['level'] = $this->getLevel($v['id'], $menu);
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$max_level = $max_level <= $menu[$k]['level'] ? $menu[$k]['level'] : $max_level;
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$menu[$k]['url'] = $url;
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}
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$this->initTree($menu);
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$text_base_one = "<li class='treeview";
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$text_hover = " active";
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$text_base_two = "'><a href='javascript:void(0);'>
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<i class='fa \$icon'></i>
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<span>
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\$name
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</span>
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<span class='pull-right-container'><i class='fa fa-angle-left pull-right'></i></span>
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</a><ul class='treeview-menu";
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$text_open = " menu-open";
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$text_base_three = "'>";
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$text_base_four = "<li";
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$text_hover_li = " class='active'";
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$text_base_five = ">
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<a href='\$url'>
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<i class='fa \$icon'></i>
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<span>\$name</span>
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</a>
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</li>";
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$text_0 = $text_base_one . $text_base_two . $text_base_three;
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$text_1 = $text_base_one . $text_hover . $text_base_two . $text_open . $text_base_three;
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$text_2 = "</ul></li>";
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$text_current = $text_base_four . $text_hover_li . $text_base_five;
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$text_other = $text_base_four . $text_base_five;
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for ($i = 0; $i <= $max_level; $i++) {
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$this->text[$i]['0'] = $text_0;
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$this->text[$i]['1'] = $text_1;
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$this->text[$i]['2'] = $text_2;
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}
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$this->text['current'] = $text_current;
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$this->text['other'] = $text_other;
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return $this->get_authTree(0, $current_id, $parent_ids);
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}
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//获取父级菜单
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protected function getMenuParent($arr, $my_id, $parent_ids = array())
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{
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$a = array();
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if (is_array($arr)) {
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foreach ($arr as $id => $a) {
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if ($a['id'] === $my_id) {
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if ($a['parent_id'] !== 0) {
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array_push($parent_ids, $a['parent_id']);
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$parent_ids = $this->getMenuParent($arr, $a['parent_id'], $parent_ids);
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}
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}
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}
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}
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return !empty($parent_ids) ? $parent_ids : false;
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}
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//获取当前导航
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protected function getCurrentNav($arr, $my_id, $parent_ids = array(), $current_nav = '')
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{
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$a = array();
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if (is_array($arr)) {
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foreach ($arr as $id => $a) {
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if ($a['id'] === $my_id) {
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if ($a['parent_id'] !== 0) {
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array_push($parent_ids, $a['parent_id']);
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$ru = '<li><a><i class="fa ' . $a['icon'] . '"></i> ' . $a['name'] . '</a></li>';
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$current_nav = $ru . $current_nav;
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$temp_result = $this->getCurrentNav($arr, $a['parent_id'], $parent_ids, $current_nav);
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$parent_ids = $temp_result[0];
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$current_nav = $temp_result[1];
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}
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}
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}
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}
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return !empty([$parent_ids, $current_nav]) ? [$parent_ids, $current_nav] : false;
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}
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}
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