我们几年来一直在为我们的Intranet使用雅虎天气预报，没有任何问题。今天，它停止了工作。如果我们传递邮政编码，我确定它不再返回结果。所以，对于查询的一个小模块，现在我们发送WOEID，雅虎再次感到高兴。
然而......在此之前，我们能够看到未来5天的天气，这很好。现在，雅虎正在返回10天的预测，这导致页面上的天气面板更大/更长。我想回到5天甚至7天。我已经尝试了基于其他YQL查询的各种事情，例如在查询结尾添加LIMIT 5，没有好处。在表名之后添加了（5），就像他们对其他一些查询所做的那样，并且没有用。
是否无法限制返回的天数？或者我是否只需要回顾所有10天，然后限制循环结果时显示的内容？
我们正在使用不再支持Zazar的jquery.zWeatherFeed插件：
/**
* Plugin: jquery.zWeatherFeed
*
* Version: 1.2.1
* (c) Copyright 2011-2013, Zazar Ltd
*
* Description: jQuery plugin for display of Yahoo! Weather feeds
*
* History:
* 1.2.1 - Handle invalid locations
* 1.2.0 - Added forecast data option
* 1.1.0 - Added user callback function
* New option to use WOEID identifiers
* New day/night CSS class for feed items
* Updated full forecast link to feed link location
* 1.0.3 - Changed full forecast link to Weather Channel due to invalid Yahoo! link
Add 'linktarget' option for forecast link
* 1.0.2 - Correction to options / link
* 1.0.1 - Added hourly caching to YQL to avoid rate limits
* Uses Weather Channel location ID and not Yahoo WOEID
* Displays day or night background images
*
**/
(function($){
$.fn.weatherfeed = function(locations, options, fn) {
// Set plugin defaults
var defaults = {
unit: 'c',
image: true,
country: false,
highlow: true,
wind: true,
humidity: false,
visibility: false,
sunrise: false,
sunset: false,
forecast: false,
link: true,
showerror: true,
linktarget: '_self',
//woeid: true,
refresh: 30
};
var options = $.extend(defaults, options);
var row = 'odd';
// Functions
return this.each(function(i, e) {
var $e = $(e);
// Add feed class to user div
if (!$e.hasClass('weatherFeed')) $e.addClass('weatherFeed');
// Check and append locations
if (!$.isArray(locations)) return false;
var count = locations.length;
if (count > 10) count = 10;
var locationid = '';
for (var i=0; i<count; i++) {
if (locationid != '') locationid += ',';
locationid += "'"+ locations[i] + "'";
}
// Cache results for an hour to prevent overuse
now = new Date();
// Select location ID type
//var queryType = options.woeid ? 'woeid' : 'location';
// Create Yahoo Weather feed API address
var query = "select * from weather.forecast where woeid in (select woeid from geo.places(1) where text=" + locationid + ")";
var api = 'https://query.yahooapis.com/v1/public/yql?q='+ encodeURIComponent(query) +'&rnd='+ now.getFullYear() + now.getMonth() + now.getDay() + now.getHours() +'&format=json&callback=?';
// Request feed data
sendRequest(query, api, options);
if (options.refresh > 0) {
// Set timer interval for scrolling
var interval = setInterval(function(){ sendRequest(query, api, options); }, options.refresh * 60000);
}
// Function to gather new weather data
function sendRequest(query, api, options) {
// Reset odd and even classes
row = 'odd';
// Clear user div
$e.html('');
$.ajax({
type: 'GET',
url: api,
dataType: 'json',
success: function(data) {
if (data.query) {
if (data.query.results.channel.length > 0 ) {
// Multiple locations
var result = data.query.results.channel.length;
for (var i=0; i<result; i++) {
// Create weather feed item
_process(e, data.query.results.channel[i], options);
}
} else {
// Single location only
_process(e, data.query.results.channel, options);
}
// Optional user callback function
if ($.isFunction(fn)) fn.call(this,$e);
} else {
if (options.showerror) $e.html('<p>Weather information unavailable</p>');
}
},
error: function(data) {
if (options.showerror) $e.html('<p>Weather request failed</p>');
}
});
};
// Function to each feed item
var _process = function(e, feed, options) {
var $e = $(e);
// Check for invalid location
if (feed.description != 'Yahoo! Weather Error') {
// Format feed items
var wd = feed.wind.direction;
if (wd>=348.75&&wd<=360){wd="N"};if(wd>=0&&wd<11.25){wd="N"};if(wd>=11.25&&wd<33.75){wd="NNE"};if(wd>=33.75&&wd<56.25){wd="NE"};if(wd>=56.25&&wd<78.75){wd="ENE"};if(wd>=78.75&&wd<101.25){wd="E"};if(wd>=101.25&&wd<123.75){wd="ESE"};if(wd>=123.75&&wd<146.25){wd="SE"};if(wd>=146.25&&wd<168.75){wd="SSE"};if(wd>=168.75&&wd<191.25){wd="S"};if(wd>=191.25 && wd<213.75){wd="SSW"};if(wd>=213.75&&wd<236.25){wd="SW"};if(wd>=236.25&&wd<258.75){wd="WSW"};if(wd>=258.75 && wd<281.25){wd="W"};if(wd>=281.25&&wd<303.75){wd="WNW"};if(wd>=303.75&&wd<326.25){wd="NW"};if(wd>=326.25&&wd<348.75){wd="NNW"};
var wf = feed.item.forecast[0];
// Determine day or night image
wpd = feed.item.pubDate;
n = wpd.indexOf(":");
tpb = _getTimeAsDate(wpd.substr(n-2,8));
tsr = _getTimeAsDate(feed.astronomy.sunrise);
tss = _getTimeAsDate(feed.astronomy.sunset);
// Get night or day
if (tpb>tsr && tpb<tss) { daynight = 'day'; } else { daynight = 'night'; }
// Add item container
var html = '<div class="weatherItem '+ row +' '+ daynight +'"';
if (options.image) html += ' style="background-image: url(http://l.yimg.com/a/i/us/nws/weather/gr/'+ feed.item.condition.code + daynight.substring(0,1) +'.png); background-repeat: no-repeat;"';
html += '>';
// Add item data
html += '<div class="weatherTemp">'+ feed.item.condition.temp +'°</div>';
html += '<div class="weatherDesc">'+ feed.item.condition.text +'</div>';
// Add optional data
html += '<br style="clear:both;">';
if (options.highlow) html += '<div class="weatherRange">High: '+ wf.high +'° Low: '+ wf.low +'°</div>';
if (options.wind) html += '<div class="weatherWind">Wind: '+ wd +' '+ feed.wind.speed + feed.units.speed +'</div>';
if (options.humidity) html += '<div class="weatherHumidity">Humidity: '+ feed.atmosphere.humidity +'%</div>';
if (options.visibility) html += '<div class="weatherVisibility">Visibility: '+ feed.atmosphere.visibility +'</div>';
if (options.sunrise) html += '<div class="weatherSunrise">Sunrise: '+ feed.astronomy.sunrise + ' Sunset: '+ feed.astronomy.sunset +'</div>';
// Add item forecast data
if (options.forecast) {
html += '<div class="weatherForecast">';
var wfi = feed.item.forecast;
for (var i=0; i<wfi.length; i++) {
html += '<div class="weatherForecastItem" style="background-image: url(http://l.yimg.com/a/i/us/nws/weather/gr/'+ wfi[i].code +'s.png); background-repeat: no-repeat;">';
html += '<div class="weatherForecastDay">'+ _getDateAsString(wfi[i].date) +'</div>';
html += '<div class="weatherForecastText">'+ wfi[i].text +'</div>';
html += '<div class="weatherForecastRange">High: '+ wfi[i].high +'° Low: '+ wfi[i].low +'°</div>';
html += '</div>'
}
html += '</div>'
}
if (options.link) html += '<div class="weatherLink"><a href="'+ feed.link +'" target="'+ options.linktarget +'" title="Read full forecast">View complete forecast</a></div>';
} else {
var html = '<div class="weatherItem '+ row +'">';
html += '<div class="weatherError">City not found</div>';
}
html += '</div>';
// Alternate row classes
if (row == 'odd') { row = 'even'; } else { row = 'odd'; }
$e.append(html);
};
// Get time string as date
var _getTimeAsDate = function(t) {
d = new Date();
r = new Date(d.toDateString() +' '+ t);
return r;
};
// Get date as full string
var _getDateAsString = function(d) {
var dayNames = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"];
var monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
var orgDate = new Date(d);
var dateAsString = dayNames[orgDate.getDay()] + ", " + monthNames[orgDate.getMonth()] + " " + orgDate.getDate() + ", " + orgDate.getFullYear();
return dateAsString;
};
});
};
})(jQuery);