ecshop导航要达到的目标:
一,比如上图,当我访问三级分类,响应式布局,这个栏目时,最顶级的元件这个分类,要高亮显示
二,如果导航上面有商品或文章频道, 并且他们有子栏目,则全自动显示所有的子栏目.
三,如果这个导航有子分类,则统一显示下拉三角标志.
代码如下
一,在includes/lib_main.php 文件中,修改掉或另外重命名并重定义一个这个get_navigator()函数,修改后的内容如下,另外get_categories_tree()这个函数为系统自带的在lib_goods.php中
/*** 取得自定义导航栏列表* @param string $type 位置，如top、bottom、middle* @return array 列表*/
function get_navigator($ctype = '', $catlist = array())
{$sql = 'SELECT * FROM '. $GLOBALS['ecs']->table('nav') . 'WHERE ifshow = \'1\' ORDER BY vieworder';$res = $GLOBALS['db']->query($sql);$cur_url = substr(strrchr($_SERVER['REQUEST_URI'],'/'),1);if (intval($GLOBALS['_CFG']['rewrite'])){if(strpos($cur_url, '-')){preg_match('/([a-z]*)-([0-9]*)/',$cur_url,$matches);$cur_url = $matches[1].'.php?id='.$matches[2];}}else{$cur_url = substr(strrchr($_SERVER['REQUEST_URI'],'/'),1);}$noindex = false;$active = 0;$has_suv=0;$navlist = array('top' => array(),'middle' => array(),'bottom' => array());while ($row = $GLOBALS['db']->fetchRow($res)){if($row['ctype']=='a'){//如果是文章类的栏目$row3=get_article_tree_for_nav($row['cid']);//列出所有子文章分类$navlist[$row['type']][] = array('name' => $row['name'],'opennew' => $row['opennew'],'url' => $row['url'],'ctype' => $row['ctype'],'cid' => $row['cid'],'has_suv' => 1,//文章类用1'sub_nav' => $row3,); }elseif($row['ctype']=='c'){//商品类的栏目$row4=get_categories_tree($row['cid']);//使用系统默认的函数即可.商品子类$navlist[$row['type']][] = array('name' => $row['name'],'opennew' => $row['opennew'],'url' => $row['url'],'ctype' => $row['ctype'],'cid' => $row['cid'],'has_suv' => 2,//与文章的导航做区分'sub_nav' => $row4,); }else{$navlist[$row['type']][] = array(//单页面等栏目,比如about.php等'name' => $row['name'],'opennew' => $row['opennew'],'url' => $row['url'],'ctype' => $row['ctype'],'cid' => $row['cid']); } }/*遍历自定义是否存在currentPage*/foreach($navlist['middle'] as $k=>$v){$condition = empty($ctype) ? (strpos($cur_url, $v['url']) === 0) : (strpos($cur_url, $v['url']) === 0 && strlen($cur_url) == strlen($v['url']));//单页,如about.php等,$ctype的值没有被传入//当前网址与数据库中循环出的网址相同if ($condition)//如果相同{$navlist['middle'][$k]['active'] = 1;//是否为当前页,追加到数组中$noindex = true;//非首页}}if(!empty($ctype))//文章或商品页面.在其控制器上传入了本栏目的类型,商品类,用c表示,或文章类,用a表示{//print_r($catlist);exit;即当前访问分类idforeach($catlist as $key => $val){$parent_arr=get_top_cat_id_arr($val,$ctype);//当前被访问的分类id的所有父栏目组成的数组//print_r($parent_arr);exit;foreach($navlist['middle'] as $k=>$v){if(!empty($v['ctype']) && $v['ctype'] == $ctype && ($v['cid'] == $val ||in_array($v['cid'],$parent_arr))){//in_array($v['cid'],$parent_arr),这句表示,如果本导航条上显示的频道id,包含在了当前访问的栏目的所有父栏目id数组中,则本导航条可高亮显示$navlist['middle'][$k]['active'] = 1;//高亮关键字$noindex = true; }}}}if ($noindex == false) {$navlist['config']['index'] = 1;}
//print_r($navlist);exit;return $navlist;
}二,同样在includes/lib_main.php 文件中,增加以下函数
/*** 获得指定分类同级的所有分类以及该分类下的子分类** @access public* @param integer $cat_id 分类编号* @return array*/
function get_article_tree($cat_id = 0){if ($cat_id > 0)//$cat_id当前分类{$parent_id=get_top_art_cat_id($cat_id);}else{$parent_id = 0;}/*判断当前分类中,是否是底级分类，如果是取出底级分类上级分类，如果不是取当前分类及其下的子分类v */$sql = 'SELECT count(*) FROM ' . $GLOBALS['ecs']->table('article_cat') . " WHERE parent_id = '$parent_id'";//if ($GLOBALS['db']->getOne($sql)|| $parent_id == 0){/* 如果当前分类有子分类,获取当前分类及其子分类 *///$sql = 'SELECT cat_id, cat_name, sort_order FROM ' . $GLOBALS['ecs']->table('article_cat') ."WHERE cat_type=1 and cat_id = '$parent_id' ORDER BY sort_order ASC, cat_id ASC";//包含顶级本身,国内新闻$sql = 'SELECT cat_id, cat_name, sort_order FROM ' . $GLOBALS['ecs']->table('article_cat') ."WHERE cat_type=1 and parent_id = '$parent_id' ORDER BY sort_order ASC, cat_id ASC";//除排顶级分类,只显示山东新闻,江苏新闻及子分类//两种方式,这里得到的$row['cat_id']都是目标catid,即需要高亮显示的$res = $GLOBALS['db']->getAll($sql);$cat_arr = array();foreach ($res AS $row){$cat_arr[$row['cat_id']]['id'] = $row['cat_id'];$cat_arr[$row['cat_id']]['name'] = $row['cat_name'];$cat_arr[$row['cat_id']]['url'] = build_uri('article_cat', array('acid' => $row['cat_id']), $row['cat_name']);$parent_id2=get_top_art_cat_id($row['cat_id']);//得到最顶级父栏目idif ($parent_id2>0){ $cat_arr[$row['cat_id']]['cat_id'] =get_article_tree_child($row['cat_id'],$cat_id);//第二个参数.传入浏览器的当前页面分类号$cat_id2=get_one_child_cat($row['cat_id']);$cat_arr[$row['cat_id']]['active']=$cat_arr[$row['cat_id']]['cat_id'][$cat_id2]['active'];//如果本栏目的其中任何一级子栏目是当前访问的栏目,则本栏目的所有父栏目 active=1,即可以高亮显示.}}}//print_r($cat_arr);exit;return $cat_arr;
}
function get_article_tree_child($tree_id = 0,$cat_id){$three_arr = array();$sql = 'SELECT count(*) FROM ' . $GLOBALS['ecs']->table('article_cat') . ' WHERE parent_id = '.$tree_id;if ($GLOBALS['db']->getOne($sql) || $tree_id == 0){$child_sql = 'SELECT cat_id, cat_name, parent_id' .' FROM ' . $GLOBALS['ecs']->table('article_cat') ."WHERE parent_id = '$tree_id' ORDER BY sort_order ASC, cat_id ASC";$res = $GLOBALS['db']->getAll($child_sql);foreach ($res AS $row){$cat_cur=$cat_loop=array();$active=0;$cat_cur=get_top_cat_id_arr($cat_id,'a');//当前访问的栏目的所有上级栏目id,所组成的数组array_pop($cat_cur);//去除最顶级的栏目,防止干扰高亮$cat_loop=get_top_cat_id_arr($row['cat_id'],'a');//循环时,本栏目的所有上级栏目id,所组成的数组array_pop($cat_loop);//去除最顶级栏目idif(count(array_intersect($cat_cur,$cat_loop))>0){//如果当前访问的栏目的父栏目数组与循环栏目得到的父栏目数组,有交集,//则访问的栏目与其所有父栏目都是$active=1;方便前台高亮$active=1; } $three_arr[$row['cat_id']]['active'] = $active;$three_arr[$row['cat_id']]['id'] = $row['cat_id'];$three_arr[$row['cat_id']]['name'] = $row['cat_name'];$three_arr[$row['cat_id']]['url'] = build_uri('article_cat', array('acid' => $row['cat_id']), $row['cat_name']);if (isset($row['cat_id']) != NULL){$three_arr[$row['cat_id']]['cat_id'] = get_article_tree_child($row['cat_id'],$cat_id);}}}return $three_arr;
}//得到其最上级分类的id
function get_top_art_cat_id( $nid ){$sql = "select parent_id from ".$GLOBALS['ecs']->table( "article_cat" )." where cat_id = ".$nid."";$temp_id = 0;$pid = $GLOBALS['db']->getOne( $sql );if ( 0 < $pid ){$temp_id = get_top_art_cat_id( $pid );return $temp_id;}$temp_id = $nid;return $temp_id;
}//本文章或商品--分类对应的所有上级分类的数组
function get_top_cat_id_arr( $nid ,$ctype='c'){if($ctype=='c'){$table=$GLOBALS['ecs']->table( "category" );}else{$table=$GLOBALS['ecs']->table( "article_cat" );}$sql = "select parent_id from ".$table." where cat_id = ".$nid."";$temp_id = 0;$temp_arr=array();$pid = $GLOBALS['db']->getOne( $sql );if ( $pid==0 ){return $temp_arr;}else{$temp_arr[]=$pid ;$sql2 = "select parent_id from ".$table." where cat_id = ".$pid."";$pid2 = $GLOBALS['db']->getOne( $sql2 );if($pid2==0){return $temp_arr;}else{$temp_arr[]=$pid2 ;$sql3 = "select parent_id from ".$table." where cat_id = ".$pid2."";$pid3 = $GLOBALS['db']->getOne( $sql3 );if($pid3==0){return $temp_arr;}else{$temp_arr[]=$pid3 ;$sql4 = "select parent_id from ".$table." where cat_id = ".$pid3."";$pid4 = $GLOBALS['db']->getOne( $sql4 );if($pid4==0){return $temp_arr;}else{$temp_arr[]=$pid4;$sql5 = "select parent_id from ".$table." where cat_id = ".$pid4."";$pid5 = $GLOBALS['db']->getOne( $sql5 );if($pid5==0){return $temp_arr;}else{$temp_arr[]=$pid5;$sql6 = "select parent_id from ".$table." where cat_id = ".$pid5."";$pid6 = $GLOBALS['db']->getOne( $sql6 );if($pid6==0){return $temp_arr;}else{$temp_arr[]=$pid6;return $temp_arr;}}}}}}}
三,相应header模板中增加示例代码,具体可自己修改,如果要增加层级,在模板上继续嵌套即可.同时后面的这个函数也可以增加层级function get_top_cat_id_arr()
后易首页 {$nav.name} {if $nav.has_suv gt 0}{/if} {if $nav.has_suv eq 1}{$child.name}----{$child1.name}========{$child2.name} {$child.name}----{$child1.name}========{$child2.name} 转载于:https://blog.51cto.com/viqecel/1718684
