过滤器$范围错误：未知提供商：$ scopeProvider＆LT; - $范围＆LT; - transformSensorStatusFilter [英] filter $scope Error: Unknown provider: $scopeProvider <- $scope <- transformSensorStatusFilter

问题描述

  marsApp.filter（transformSensorStatus功能（$范围）{
    返回功能（输入选项）{    变种sensorReading =（输入（输入/ 1000）：0）;
    VAR sensorLowLimit =（选项[LOWLIMIT]（选项[LOWLIMIT] / 1000）：0）;
    VAR sensorHighLimit =（选项[HighLimit时（选项[HighLimit时] / 1000）：0）;
    VAR curStat;
    开关（sensorReading）{
        案例255：
        案例254：
        案例253：
            curStat = generateStateInnerHtml（sensorReading）;
            打破;
        默认：
            curStat = generateStateInnerHtml（选项[sensorStatus]）;    }    返回curStat;
    功能generateStateInnerHtml（州）{        VAR stateHtml = NULL;        如果（状态== || 255 ==状态254）{
            stateHtml =一个;
            $ scope.sensorStateColor ='';
            返回state_html;
        }
        如果（状态== 253）{
            stateHtml =b的;
            $ scope.sensorStateColor =TEXT-警告;
            返回state_html;
        }
        如果（国家＆GT; = 0x20的）{
            stateHtml =C;
            $ scope.sensorStateColor =TEXT-错误;
            返回stateHtml;
        }
        如果（国家＆GT; = 0×02）{
            stateHtml =D;
            $ scope.sensorStateColor =TEXT-错误;
            返回stateHtml;
        }
        如果（状态== 0×01）{
            stateHtml =E;
            $ scope.sensorStateColor =TEXT-成功;
            返回stateHtml;
        }
        stateHtml =N / A;
        返回stateHtml;
    }
}
 

}）;

在Chrome中，我得到以下错误：

  

错误：未知提供商：$ scopeProvider＆LT; - $范围＆LT; -
  transformSensorStatusFilter

解决方案

的 $范围仅用于控制器和指令的链接功能可用。这就是为什么过滤器不能找到它。也许你的意思 $ rootScope ？

marsApp.filter("transformSensorStatus", function($scope) {
    return function(input, options) {

    var sensorReading = ( input ? ( input / 1000) : 0);
    var sensorLowLimit = (options["lowLimit"] ? (options["lowLimit"] / 1000) : 0);
    var sensorHighLimit = (options["highLimit"] ? (options["highLimit"] / 1000) : 0);
    var curStat;
    switch (sensorReading) {
        case 255:
        case 254:
        case 253:
            curStat = generateStateInnerHtml(sensorReading);
            break;
        default:
            curStat = generateStateInnerHtml(options["sensorStatus"]);

    }

    return curStat;


    function generateStateInnerHtml(state) {

        var stateHtml = null;

        if (state == 255 || state == 254) {
            stateHtml = "a";
            $scope.sensorStateColor='';
            return state_html;
        }
        if (state == 253) {
            stateHtml = "b";
            $scope.sensorStateColor="text-warning";
            return state_html;
        }
        if (state >= 0x20) {
            stateHtml = "c";
            $scope.sensorStateColor="text-error";
            return stateHtml;
        }
        if (state >= 0x02) {
            stateHtml = "d";
            $scope.sensorStateColor="text-error";
            return stateHtml;
        }
        if (state == 0x01) {
            stateHtml = "e";
            $scope.sensorStateColor="text-success";
            return stateHtml;
        }
        stateHtml = "N/A";
        return stateHtml;
    }
}

});

in chrome , I get the following error:

Error: Unknown provider: $scopeProvider <- $scope <- transformSensorStatusFilter

解决方案

The $scope is available only for controllers and the link function of directives. This is why the filter cannot find it. Maybe you meant $rootScope?

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