{"id":1654,"date":"2018-05-01T21:17:08","date_gmt":"2018-05-01T13:17:08","guid":{"rendered":"http:\/\/www.yueguangzu.net\/?p=1654"},"modified":"2018-05-01T21:18:34","modified_gmt":"2018-05-01T13:18:34","slug":"%e5%88%86%e9%a1%b5%e7%9a%84%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"http:\/\/www.yueguangzu.net\/?p=1654","title":{"rendered":"\u5206\u9875\u7684\u5b9e\u73b0"},"content":{"rendered":"<h3 class=\"md-end-block md-heading md-focus\">\u5206\u9875\u662f\u6307,\u628a\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u5230\u7684\u7ed3\u679c,\u5206\u5757\u5c55\u793a\u5728\u524d\u53f0,\u901a\u5e38\u4e0d\u4f1a\u628a\u6240\u6709\u67e5\u8be2\u5230\u7684\u7ed3\u679c\u4e00\u6b21\u6027\u5c55\u793a,\u8fd9\u6837\u4f1a\u9020\u6210\u6570\u636e\u5e93\u538b\u529b,\u9020\u6210\u8d44\u6e90\u6d6a\u8d39.<\/h3>\n<ul class=\"ul-list\" data-mark=\"-\">\n<li>\n<h5 class=\"md-end-block md-heading\">\u5206\u9875\u65e9\u4e9b\u65f6\u5019\u4e86\u89e3\u8fc7,\u4f46\u662f\u81ea\u5df1\u5b9e\u8df5,\u8fd8\u662f\u9700\u8981\u82b1\u4e00\u5b9a\u7684\u65f6\u95f4<\/h5>\n<\/li>\n<li class=\"\">\n<h5 class=\"md-end-block md-heading\"><span class=\"\">\u5206\u9875\u6709orm\u7684Paginator,\u8fd9\u91cc\u4e3e\u4e2a\u4f7f\u7528\u539f\u751fSQL\u7684\u4f8b\u5b50<\/span><\/h5>\n<\/li>\n<li class=\"\">\n<h5 class=\"md-end-block md-heading\"><span class=\"\">\u8fd9\u91cc\u7ed9\u7684\u662fPython+MySQL\u7684\u539f\u751f\u67e5\u8be2\u7684\u4f8b\u5b50,\u7528\u5230\u7684\u662fdjango\u7684\u6846\u67b6,\u914d\u5408\u81ea\u5b9a\u4e49\u6807\u7b7e,\u6e32\u67d3\u524d\u53f0<\/span><\/h5>\n<\/li>\n<\/ul>\n<h4 class=\"md-end-block md-heading\"><span class=\"\">1.\u672c\u4f8b\u4f7f\u7528\u4e86django\u7684\u81ea\u5b9a\u4e49\u6807\u7b7e,\u5728app\/templatetags\/tags.py ,\u81ea\u5b9a\u4e49\u6807\u7b7e,\u8ba9\u524d\u53f0\u4e5f\u80fd\u8c03\u7528\u540e\u53f0\u7684\u51fd\u6570,\u6269\u5c55\u5176\u4e2d\u7684\u529f\u80fd<\/span><\/h4>\n<pre class=\"md-fences md-end-block\" lang=\"python\" contenteditable=\"false\"><span class=\"cm-comment\">#-*-coding:utf-8-*-<\/span>\r\n<span class=\"cm-keyword\">from<\/span> <span class=\"cm-variable\">django<\/span> <span class=\"cm-keyword\">import<\/span> <span class=\"cm-variable\">template<\/span>\r\n<span class=\"cm-keyword\">import<\/span> <span class=\"cm-variable\">urlparse<\/span>\r\n<span class=\"cm-keyword\">import<\/span> <span class=\"cm-variable\">urllib<\/span>\r\n<span class=\"cm-keyword\">from<\/span> <span class=\"cm-variable\">django<\/span>.<span class=\"cm-property\">utils<\/span>.<span class=\"cm-property\">safestring<\/span> <span class=\"cm-keyword\">import<\/span> <span class=\"cm-variable\">mark_safe<\/span>\r\n<span class=\"cm-variable\">register<\/span>=<span class=\"cm-variable\">template<\/span>.<span class=\"cm-property\">Library<\/span>()\r\n\u200b\r\n<span class=\"cm-meta\">@register<\/span>.<span class=\"cm-property\">simple_tag<\/span>\r\n<span class=\"cm-keyword\">def<\/span> <span class=\"cm-def\">div_page<\/span>(<span class=\"cm-variable\">curr_page<\/span>,<span class=\"cm-variable\">total<\/span>,<span class=\"cm-variable\">count<\/span>,<span class=\"cm-variable\">curr_url<\/span>,<span class=\"cm-variable\">request_url<\/span>):\r\n \u00a0  <span class=\"cm-string\">'''\u5206\u9875\u680f5\u5217'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">max_page_count<\/span>=<span class=\"cm-number\">5<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u67e5\u8be2\u7684\u6570\u636e\u7684\u603b\u8bb0\u5f55\/\u6bcf\u9875\u663e\u793a\u7684\u6570\u91cf,\u7684\u51fa\u6765\u7684\u5c31\u662f\u6709\u591a\u5c11\u9875\u5566'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">list_len<\/span>=<span class=\"cm-builtin\">int<\/span>(<span class=\"cm-variable\">total<\/span>)<span class=\"cm-operator\">\/<\/span><span class=\"cm-variable\">count<\/span> <span class=\"cm-operator\">+<\/span> <span class=\"cm-number\">1<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u5982\u679c\u7b2c\u4e00\u9875\u5c31\u88c5\u5b8c\u4e86,\u957f\u5ea6\u5c31\u662f1\u4e86'''<\/span>\r\n \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-variable\">list_len<\/span>==<span class=\"cm-number\">0<\/span>:<span class=\"cm-variable\">list_len<\/span>=<span class=\"cm-number\">1<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u6240\u6709\u9875\u9762\u505a\u51fa\u4e00\u4e2a\u5217\u8868'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">page_range<\/span>=<span class=\"cm-builtin\">range<\/span>(<span class=\"cm-number\">1<\/span>,<span class=\"cm-variable\">list_len<\/span> <span class=\"cm-operator\">+<\/span> <span class=\"cm-number\">1<\/span>)\r\n \u00a0  <span class=\"cm-string\">'''\u4e2d\u95f4\u4f4d\u7f6e\u7684\u7d22\u5f15,\u6ce8\u610f\u662f\u7d22\u5f15,\u4e0d\u662f\u4f4d\u7f6e'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">center_index<\/span> = <span class=\"cm-variable\">max_page_count<\/span> <span class=\"cm-operator\">\/<\/span> <span class=\"cm-number\">2<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u5f53\u524d\u9875\u9762\u7684\u7d22\u5f15,\u5176\u5b9e\u5c31\u662f\u5f53\u524d\u7684\u9875\u9762\u518d\u5217\u8868\u4e2d\u7684\u4f4d\u7f6e\u53d6\u7d22\u5f15,\u7d22\u5f15\u4f7f\u7528index(\u5143\u7d20)\u83b7\u53d6'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">curr_index<\/span>=<span class=\"cm-variable\">page_range<\/span>.<span class=\"cm-property\">index<\/span>(<span class=\"cm-variable\">curr_page<\/span>)\r\n \u00a0  <span class=\"cm-string\">'''\u8fd9\u4e2a\u51fd\u6570\u662f\u83b7\u53d6url\u5730\u5740\u4e2d\u7684?\u540e\u9762\u7684\u53c2\u6570a=11&amp;b=12,\u8f6c\u5316\u4e3a\u5b57\u5178,\u56e0\u4e3a\u5b57\u5178\u5bb9\u6613\u66ff\u6362\u5185\u5bb9'''<\/span>\r\n \u00a0  <span class=\"cm-keyword\">def<\/span> <span class=\"cm-def\">parse_qs<\/span>(<span class=\"cm-variable\">qs<\/span>):\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">res<\/span> = {}\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-keyword\">not<\/span> <span class=\"cm-variable\">qs<\/span>:\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">return<\/span> <span class=\"cm-variable\">res<\/span>\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">params<\/span> = <span class=\"cm-variable\">qs<\/span>.<span class=\"cm-property\">split<\/span>(<span class=\"cm-string\">\"&amp;\"<\/span>)\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">p_str<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-variable\">params<\/span>:\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">k<\/span>, <span class=\"cm-variable\">v<\/span> = <span class=\"cm-variable\">p_str<\/span>.<span class=\"cm-property\">split<\/span>(<span class=\"cm-string\">\"=\"<\/span>)\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">res<\/span>[<span class=\"cm-variable\">k<\/span>] = <span class=\"cm-variable\">urllib<\/span>.<span class=\"cm-property\">unquote<\/span>(<span class=\"cm-variable\">v<\/span>)\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">return<\/span> <span class=\"cm-variable\">res<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u9700\u8981\u7f16\u7801\u4e2d\u6587\u6210\u4e3autf8,\u5426\u5219\u4e2d\u6587\u5728\u5730\u5740\u680f\u4e2d\u4f1a\u51fa\u73b0\u4e71\u7801'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">params<\/span> = <span class=\"cm-variable\">parse_qs<\/span>(<span class=\"cm-variable\">urlparse<\/span>.<span class=\"cm-property\">urlparse<\/span>(<span class=\"cm-variable\">request_url<\/span>).<span class=\"cm-property\">query<\/span>.<span class=\"cm-property\">encode<\/span>(<span class=\"cm-string\">\"utf8\"<\/span>))\r\n \u00a0  <span class=\"cm-string\">'''\u5206\u9875\u7684html\u4fbf\u7b7e\u4e32'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">page_str<\/span> = <span class=\"cm-string\">'&lt;div class=\"pagenation\"&gt;'<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u5b9a\u4e49\u9996\u9875'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">params<\/span>[<span class=\"cm-string\">'p'<\/span>]=<span class=\"cm-number\">1<\/span>\r\n \u00a0  <span class=\"cm-variable\">page_str<\/span> += <span class=\"cm-string\">'&lt;a href=\"%s?%s\" style=\"background-color: pink\"&gt; \u9996\u9875 &lt;\/a&gt;'<\/span> <span class=\"cm-operator\">%<\/span>  (<span class=\"cm-variable\">curr_url<\/span>,<span class=\"cm-string\">'&amp;'<\/span>.<span class=\"cm-property\">join<\/span>([<span class=\"cm-string\">'%s=%s'<\/span><span class=\"cm-operator\">%<\/span>(<span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span>) <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-variable\">params<\/span>.<span class=\"cm-property\">items<\/span>()]))\r\n \u00a0  <span class=\"cm-string\">'''\u5b9a\u4e49\u4e0a\u4e00\u9875'''<\/span>\r\n \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-variable\">curr_page<\/span> <span class=\"cm-operator\">!<\/span>=<span class=\"cm-number\">1<\/span>:\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">params<\/span>[<span class=\"cm-string\">'p'<\/span>]=<span class=\"cm-variable\">curr_page<\/span><span class=\"cm-operator\">-<\/span><span class=\"cm-number\">1<\/span>\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">page_str<\/span> += <span class=\"cm-string\">'&lt;a href=\"%s?%s\" style=\"background-color: #5bc0de\"&gt;\u4e0a\u4e00\u9875&lt;\/a&gt;'<\/span> <span class=\"cm-operator\">%<\/span>  (<span class=\"cm-variable\">curr_url<\/span>,<span class=\"cm-string\">'&amp;'<\/span>.<span class=\"cm-property\">join<\/span>([<span class=\"cm-string\">'%s=%s'<\/span><span class=\"cm-operator\">%<\/span>(<span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span>) <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-variable\">params<\/span>.<span class=\"cm-property\">items<\/span>()]))\r\n \u00a0  <span class=\"cm-string\">'''\u5b9a\u4e491,2,3,4,5\u8fd9\u79cd\u4e2d\u95f4\u5217\u7684\u6309\u94ae,\u5f53\u524d\u7d22\u5f15\u5927\u4e8e\u4e2d\u95f4\u4f4d\u7f6e\u7684\u7d22\u5f15\u65f6,\u622a\u65ad\u524d\u9762\u7684\u90e8\u5206,\u7528\u5f53\u524d\u4f4d\u7f6e\u7684\u7d22\u5f15\u51cf\u53bb\u4e2d\u95f4\u4f4d\u7f6e\u7684\u7d22\u5f15\u8fdb\u884c\u5207\u7247:'''<\/span>\r\n \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-variable\">curr_index<\/span><span class=\"cm-operator\">&gt;<\/span>=<span class=\"cm-variable\">center_index<\/span>:\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">page_range<\/span>=<span class=\"cm-variable\">page_range<\/span>[<span class=\"cm-variable\">curr_index<\/span><span class=\"cm-operator\">-<\/span><span class=\"cm-variable\">center_index<\/span>:]\r\n \u00a0  <span class=\"cm-string\">'''\u904d\u5386\u6bcf\u4e00\u4e2a\u4fbf\u7b7e,\u5e76\u8f6c\u6210html'''<\/span>\r\n \u00a0  <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">i<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-builtin\">enumerate<\/span>(<span class=\"cm-variable\">page_range<\/span>):\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">params<\/span>[<span class=\"cm-string\">'p'<\/span>]=<span class=\"cm-variable\">i<\/span>[<span class=\"cm-number\">1<\/span>]\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-string\">'''\u5f53\u524d\u9875\u9700\u8981\u52a0\u7c97\u52a0\u6df1'''<\/span>\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-variable\">i<\/span>[<span class=\"cm-number\">1<\/span>] == <span class=\"cm-variable\">curr_page<\/span>:\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">page_str<\/span> += <span class=\"cm-string\">'&lt;a href=\"%s?%s\" class=\"active\" style=\"background-color: #1b6d85\"&gt;%s&lt;\/a&gt;'<\/span> <span class=\"cm-operator\">%<\/span> (<span class=\"cm-variable\">curr_url<\/span>, <span class=\"cm-string\">'&amp;'<\/span>.<span class=\"cm-property\">join<\/span>([<span class=\"cm-string\">'%s=%s'<\/span><span class=\"cm-operator\">%<\/span>(<span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span>) <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-variable\">params<\/span>.<span class=\"cm-property\">items<\/span>()]), <span class=\"cm-variable\">i<\/span>[<span class=\"cm-number\">1<\/span>])\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">elif<\/span> <span class=\"cm-variable\">i<\/span>[<span class=\"cm-number\">0<\/span>]<span class=\"cm-operator\">+<\/span><span class=\"cm-number\">1<\/span><span class=\"cm-operator\">&lt;<\/span>=<span class=\"cm-variable\">max_page_count<\/span>:\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">page_str<\/span> += <span class=\"cm-string\">'&lt;a href=\"%s?%s\" &gt;%s&lt;\/a&gt;'<\/span> <span class=\"cm-operator\">%<\/span> (<span class=\"cm-variable\">curr_url<\/span>,<span class=\"cm-string\">'&amp;'<\/span>.<span class=\"cm-property\">join<\/span>([<span class=\"cm-string\">'%s=%s'<\/span><span class=\"cm-operator\">%<\/span>(<span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span>) <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-variable\">params<\/span>.<span class=\"cm-property\">items<\/span>()]), <span class=\"cm-variable\">i<\/span>[<span class=\"cm-number\">1<\/span>])\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">else<\/span>:\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-string\">'''\u8d85\u8fc7\u6700\u5927\u5206\u9875\u680f\u76845\u4e2a\u6570\u5b57\u65f6,\u9000\u51fa'''<\/span>\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">break<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u5b9a\u4e49\u4e0b\u4e00\u9875'''<\/span>\r\n \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-variable\">curr_page<\/span> <span class=\"cm-operator\">!<\/span>=<span class=\"cm-variable\">page_range<\/span>[<span class=\"cm-operator\">-<\/span><span class=\"cm-number\">1<\/span>]:\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">params<\/span>[<span class=\"cm-string\">'p'<\/span>]=<span class=\"cm-variable\">curr_page<\/span><span class=\"cm-operator\">+<\/span><span class=\"cm-number\">1<\/span>\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">page_str<\/span> += <span class=\"cm-string\">'&lt;a href=\"%s?%s\" style=\"background-color: #5bc0de\"&gt; \u4e0b\u4e00\u9875 &lt;\/a&gt;'<\/span> <span class=\"cm-operator\">%<\/span>  (<span class=\"cm-variable\">curr_url<\/span>,<span class=\"cm-string\">'&amp;'<\/span>.<span class=\"cm-property\">join<\/span>([<span class=\"cm-string\">'%s=%s'<\/span><span class=\"cm-operator\">%<\/span>(<span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span>) <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-variable\">params<\/span>.<span class=\"cm-property\">items<\/span>()]))\r\n \u00a0  <span class=\"cm-string\">'''\u5b9a\u4e49\u672b\u9875'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">params<\/span>[<span class=\"cm-string\">'p'<\/span>]=<span class=\"cm-variable\">list_len<\/span>\r\n \u00a0  <span class=\"cm-variable\">page_str<\/span> += <span class=\"cm-string\">'&lt;a href=\"%s?%s\" style=\"background-color: pink\"&gt; \u672b\u9875 &lt;\/a&gt;'<\/span> <span class=\"cm-operator\">%<\/span>  (<span class=\"cm-variable\">curr_url<\/span>,<span class=\"cm-string\">'&amp;'<\/span>.<span class=\"cm-property\">join<\/span>([<span class=\"cm-string\">'%s=%s'<\/span><span class=\"cm-operator\">%<\/span>(<span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span>) <span class=\"cm-keyword\">for<\/span> <span class=\"cm-variable\">k<\/span>,<span class=\"cm-variable\">v<\/span> <span class=\"cm-keyword\">in<\/span> <span class=\"cm-variable\">params<\/span>.<span class=\"cm-property\">items<\/span>()]))\r\n \u00a0  <span class=\"cm-variable\">page_str<\/span> += <span class=\"cm-string\">\"&lt;\/div&gt;\"<\/span>\r\n \u00a0  <span class=\"cm-string\">'''\u4f7f\u7528make_safe\u6e32\u67d3\u4e3ahtml\u6807\u7b7e\u800c\u4e0d\u662f\u5b57\u7b26\u4e32'''<\/span>\r\n \u00a0  <span class=\"cm-keyword\">return<\/span> <span class=\"cm-variable\">mark_safe<\/span>(<span class=\"cm-variable\">page_str<\/span>)<\/pre>\n<h4 class=\"md-end-block md-heading\">2.\u524d\u53f0\u56e0\u4e3a\u8981\u4f7f\u7528\u81ea\u5b9a\u4e49\u6807\u7b7e,\u6240\u4ee5\u5fc5\u987b<span class=\"\" spellcheck=\"false\"><code>{% load tags %}<\/code><\/span>\u5f15\u5165templatetags\/tags.py<\/h4>\n<pre class=\"md-fences md-end-block\" lang=\"html\" contenteditable=\"false\">{% load tags %}\r\n...\r\n<span class=\"cm-tag cm-bracket\">&lt;<\/span><span class=\"cm-tag\">br<\/span><span class=\"cm-tag cm-bracket\">&gt;<\/span>\r\n \u00a0  {% div_page p total count url request.get_full_path %}\r\n<span class=\"cm-tag cm-bracket\">&lt;<\/span><span class=\"cm-tag\">br<\/span><span class=\"cm-tag cm-bracket\">&gt;<\/span><\/pre>\n<h4 class=\"md-end-block md-heading\"><span class=\"\">3.\u89c6\u56fe\u90e8\u5206\u7684\u903b\u8f91,\u9996\u5148\u5bf9\u67e5\u8be2\u8bed\u53e5\u7684\u67e5\u8be2\u603b\u6570\u636e\u8fdb\u884c\u6c47\u603b,\u518d\u6839\u636e\u9700\u8981\u663e\u793a\u7684\u8bb0\u5f55\u6570,\u914d\u5408mysql\u7684limit\u51fd\u6570\u8fdb\u884c\u5207\u7247,\u53d6\u6570\u4e4b\u524d,\u5148\u8fdb\u884c\u5206\u9875,\u5b8c\u4e4b\u540e\u624d\u663e\u793a,\u8fd9\u6837\u5bf9\u6570\u636e\u5e93\u7684\u5f00\u9500\u6ca1\u6709\u90a3\u4e48\u5927,\u4e5f\u662f\u503c\u5f97\u63a8\u8350\u7684.<\/span><\/h4>\n<pre class=\"md-fences md-end-block\" lang=\"python\" contenteditable=\"false\"><span class=\"cm-keyword\">def<\/span> <span class=\"cm-def\">get_lc<\/span>(<span class=\"cm-variable\">request<\/span>):\r\n \u00a0  <span class=\"cm-variable\">oDate<\/span>=<span class=\"cm-variable\">request<\/span>.<span class=\"cm-property\">GET<\/span>.<span class=\"cm-property\">get<\/span>(<span class=\"cm-string\">'oDate'<\/span>,<span class=\"cm-string\">''<\/span>)\r\n \u00a0  <span class=\"cm-variable\">oDepCity<\/span>=<span class=\"cm-variable\">request<\/span>.<span class=\"cm-property\">GET<\/span>.<span class=\"cm-property\">get<\/span>(<span class=\"cm-string\">'oDepCity'<\/span>,<span class=\"cm-string\">''<\/span>)\r\n \u00a0  <span class=\"cm-variable\">oArrCity<\/span>=<span class=\"cm-variable\">request<\/span>.<span class=\"cm-property\">GET<\/span>.<span class=\"cm-property\">get<\/span>(<span class=\"cm-string\">'oArrCity'<\/span>,<span class=\"cm-string\">''<\/span>)\r\n \u00a0  <span class=\"cm-variable\">p<\/span>=<span class=\"cm-builtin\">int<\/span>(<span class=\"cm-variable\">request<\/span>.<span class=\"cm-property\">GET<\/span>.<span class=\"cm-property\">get<\/span>(<span class=\"cm-string\">'p'<\/span>,<span class=\"cm-number\">1<\/span>))\r\n \u00a0  <span class=\"cm-variable\">count<\/span>=<span class=\"cm-builtin\">int<\/span>(<span class=\"cm-variable\">request<\/span>.<span class=\"cm-property\">GET<\/span>.<span class=\"cm-property\">get<\/span>(<span class=\"cm-string\">'count'<\/span>,<span class=\"cm-number\">20<\/span>))\r\n \u00a0  <span class=\"cm-keyword\">print<\/span> <span class=\"cm-variable\">count<\/span>\r\n \u00a0  <span class=\"cm-variable\">title<\/span>,<span class=\"cm-variable\">data<\/span>,<span class=\"cm-variable\">total<\/span>=<span class=\"cm-variable\">get_data<\/span>(<span class=\"cm-variable\">oDate<\/span>,<span class=\"cm-variable\">oDepCity<\/span>,<span class=\"cm-variable\">oArrCity<\/span>,<span class=\"cm-variable\">p<\/span>,<span class=\"cm-variable\">count<\/span>)\r\n \u00a0  <span class=\"cm-keyword\">return<\/span> <span class=\"cm-variable\">render<\/span>(<span class=\"cm-variable\">request<\/span>,<span class=\"cm-string\">'lc.html'<\/span>,<span class=\"cm-builtin\">locals<\/span>())\r\n\u200b\r\n<span class=\"cm-keyword\">def<\/span> <span class=\"cm-def\">get_data<\/span>(<span class=\"cm-variable\">oDate<\/span>,<span class=\"cm-variable\">oDepCity<\/span>,<span class=\"cm-variable\">oArrCity<\/span>,<span class=\"cm-variable\">p<\/span>,<span class=\"cm-variable\">count<\/span>):\r\n \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-variable\">oDate<\/span>:\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-variable\">oDepCity<\/span> <span class=\"cm-keyword\">and<\/span> <span class=\"cm-variable\">oArrCity<\/span>:\r\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  <span class=\"cm-variable\">v_sql<\/span>=<span class=\"cm-string\">\"SELECT t.oDate \u65e5\u671f,t.oDepCity \u51fa\u53d1,t.oArrCity \u5230\u8fbe,t.flightNo \u822a\u73ed,t.depTime \u51fa\u53d1\u65f6\u95f4,t.arrTime \u5230\u8fbe\u65f6\u95f4,t.code \u673a\u578b,t.airportTax \u673a\u573a\u7a0e,t.timeDuringFlight \u5386\u65f6,t.nameZH \u8231\u4f4d,t.info \u4f59\u7968,t.adultMileage \u91cc\u7a0b,t.awardDiscount \u4fc3\u9500,t.discountPrice \u6298\u6263,t.create_date as \u66f4\u65b0\u65f6\u95f4 from csair_lc t inner join (select a.oDate,a.flightNo,a.adultMileage,a.oArrCity,a.oDepCity,max(a.create_date) create_date from csair_lc a where a.create_date&gt;=NOW()-10000 and a.oDate='{0}' and a.oArrCity='{1}' and a.oDepCity='{2}' group by a.oDate,a.flightNo,a.adultMileage,a.oArrCity,a.oDepCity) b on b.create_date=t.create_date and b.oDate=t.oDate and t.flightNo=b.flightNo and t.adultMileage=b.adultMileage and t.oDepCity=b.oDepCity and t.oArrCity=b.oArrCity order by t.oDate,t.depTime\"<\/span>.<span class=\"cm-property\">format<\/span>(<span class=\"cm-variable\">oDate<\/span>,<span class=\"cm-variable\">oArrCity<\/span>,<span class=\"cm-variable\">oDepCity<\/span>)\r\n \u00a0  <span class=\"cm-string\">'''\u90e8\u5206sql\u8bed\u53e5\u7701\u7565'''<\/span>\r\n \u00a0  <span class=\"cm-variable\">conn<\/span>=<span class=\"cm-variable\">mysqlpool<\/span>.<span class=\"cm-property\">connection<\/span>()\r\n \u00a0  <span class=\"cm-variable\">cur<\/span>=<span class=\"cm-variable\">conn<\/span>.<span class=\"cm-property\">cursor<\/span>()\r\n \u00a0  <span class=\"cm-variable\">cur<\/span>.<span class=\"cm-property\">execute<\/span>(<span class=\"cm-string\">'select count(1) from (%s) _count'<\/span><span class=\"cm-operator\">%<\/span><span class=\"cm-variable\">v_sql<\/span>)\r\n \u00a0  <span class=\"cm-variable\">total<\/span>=<span class=\"cm-variable\">cur<\/span>.<span class=\"cm-property\">fetchone<\/span>()[<span class=\"cm-number\">0<\/span>]\r\n \u00a0  <span class=\"cm-comment\"># print total,count<\/span>\r\n \u00a0  <span class=\"cm-keyword\">if<\/span> <span class=\"cm-keyword\">not<\/span> <span class=\"cm-variable\">total<\/span>:\r\n \u00a0 \u00a0 \u00a0  <span class=\"cm-keyword\">return<\/span> <span class=\"cm-builtin\">None<\/span>,<span class=\"cm-builtin\">None<\/span>,<span class=\"cm-variable\">total<\/span>\r\n \u00a0  <span class=\"cm-variable\">v_sql<\/span>+=<span class=\"cm-string\">' limit {0},{1}'<\/span>.<span class=\"cm-property\">format<\/span>((<span class=\"cm-builtin\">int<\/span>(<span class=\"cm-variable\">p<\/span>)<span class=\"cm-operator\">-<\/span><span class=\"cm-number\">1<\/span>)<span class=\"cm-operator\">*<\/span><span class=\"cm-builtin\">int<\/span>(<span class=\"cm-variable\">count<\/span>),<span class=\"cm-variable\">count<\/span>)\r\n \u00a0  <span class=\"cm-variable\">cur<\/span>.<span class=\"cm-property\">execute<\/span>(<span class=\"cm-variable\">v_sql<\/span>)\r\n \u00a0  <span class=\"cm-variable\">title<\/span>=<span class=\"cm-variable\">cur<\/span>.<span class=\"cm-property\">description<\/span>\r\n \u00a0  <span class=\"cm-variable\">data<\/span>=<span class=\"cm-variable\">cur<\/span>.<span class=\"cm-property\">fetchall<\/span>()\r\n \u00a0  <span class=\"cm-variable\">conn<\/span>.<span class=\"cm-property\">close<\/span>()\r\n \u00a0  <span class=\"cm-keyword\">return<\/span> <span class=\"cm-variable\">title<\/span>,<span class=\"cm-variable\">data<\/span>,<span class=\"cm-variable\">total<\/span><\/pre>\n<h4 class=\"md-end-block md-heading\">\u9644\u5e26\u4e00\u4e2a\u6548\u679c\u56fe!\u53ef\u4ee5\u59a5\u59a5\u7684\u663e\u793a\u5f53\u524d\u9875,\u4e0b\u4e00\u9875,\u672b\u9875,\u9996\u9875&#8230;\u8272\u5f69\u642d\u914d\u4e0d\u559c\u52ff\u55b7.<\/h4>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-1660\" src=\"http:\/\/www.yueguangzu.net\/wp-content\/uploads\/2018\/05\/0501-1.jpg\" alt=\"\" width=\"1640\" height=\"741\" srcset=\"http:\/\/www.yueguangzu.net\/wp-content\/uploads\/2018\/05\/0501-1.jpg 1640w, http:\/\/www.yueguangzu.net\/wp-content\/uploads\/2018\/05\/0501-1-300x136.jpg 300w, http:\/\/www.yueguangzu.net\/wp-content\/uploads\/2018\/05\/0501-1-768x347.jpg 768w, http:\/\/www.yueguangzu.net\/wp-content\/uploads\/2018\/05\/0501-1-1024x463.jpg 1024w\" sizes=\"(max-width: 1640px) 100vw, 1640px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h4 class=\"md-end-block md-heading\"><\/h4>\n<h4 class=\"md-end-block md-heading\"><span class=\"\">Paginator\u7684\u8bdd,\u7f51\u4e0a\u4e00\u5927\u5806\u4f8b\u5b50,\u5c31\u4e0d\u4e3e\u4f8b\u4e86,\u5982\u679c\u6709\u9700\u8981\u5728\u8fdb\u884c\u4ea4\u6d41.\u5199\u524d\u7aef\u8fd8\u662f\u633a\u8d39\u65f6\u95f4\u7684.\u627e\u673a\u4f1a\u628aajax\u7684\u5206\u9875\u7ed9\u6574\u51fa\u6765.\u4eca\u5929\u5c31\u8fd9\u6837,\u795d\u5927\u5bb6\u4e94\u4e00\u8282\u5feb\u4e50.<\/span><\/h4>\n<div class=\"md-hr md-end-block\" tabindex=\"-1\" contenteditable=\"false\">\n<hr \/>\n<\/div>\n<h3 class=\"md-end-block md-heading\"><span class=\"\">\u8c22\u8c22\u89c2\u8d4f,\u6709\u7591\u95ee\u8bf7\u7559\u8a00<\/span><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u9875\u662f\u6307,\u628a\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u5230\u7684\u7ed3\u679c,\u5206\u5757\u5c55\u793a\u5728\u524d\u53f0,\u901a\u5e38\u4e0d\u4f1a\u628a\u6240\u6709\u67e5\u8be2\u5230\u7684\u7ed3\u679c\u4e00\u6b21\u6027\u5c55\u793a,\u8fd9\u6837\u4f1a\u9020\u6210\u6570\u636e\u5e93\u538b\u529b,\u9020\u6210\u8d44\u6e90\u6d6a\u8d39. \u5206\u9875\u65e9\u4e9b\u65f6\u5019\u4e86\u89e3\u8fc7,\u4f46\u662f\u81ea\u5df1\u5b9e\u8df5,\u8fd8\u662f\u9700\u8981\u82b1\u4e00\u5b9a\u7684\u65f6\u95f4 \u5206\u9875\u6709orm\u7684Paginator,\u8fd9\u91cc\u4e3e\u4e2a\u4f7f\u7528\u539f\u751fSQL [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[54],"tags":[56,111,110,109,112,113],"_links":{"self":[{"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=\/wp\/v2\/posts\/1654"}],"collection":[{"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1654"}],"version-history":[{"count":5,"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=\/wp\/v2\/posts\/1654\/revisions"}],"predecessor-version":[{"id":1661,"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=\/wp\/v2\/posts\/1654\/revisions\/1661"}],"wp:attachment":[{"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1654"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.yueguangzu.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}