Question

我有一个表单，根据用户选择的下拉菜单查找医生。

以下表格：

当用户在下拉列表中选择城市并点击搜索时，它会检索城市内的紧急护理。但是，它重复相同的位置。下面的代码是：

<div class="panel panel-default">
<div class="panel-body">
    <form name="UrgentCareSearch" ng-submit="SearchUrgentCare(searchParam);" novalidate role="form">
    <div style="margin-top:-10px; margin-bottom:10px; text-align:center; font-size:8pt! important"><strong>Search by<br> URGENT CARE NAME AND/OR CITY </strong></div>
        <div class="form-group"><input class="form-control" id="urgentcare" ng-model="searchParam.UrgentCareName" placeholder="Urgent Care Name" type="text" /></div>
        <!---<div class="form-group"><input class="form-control" id="urgentcare" name="Urgent Care Name" onblur="if(this.value === '') this.value = 'Urgent Care Name';" onfocus="if(this.value === 'Urgent Care Name') this.value = '';" type="text" value="Urgent Care Name" /></div>--->

        <div class="form-group">
        <!---<select class="form-control margin-bottom1" id="city" ng-model="searchParam.City" ng-options="City.value for City in Cities">
        <option disabled="disabled" selected="selected" value="">City</option> </select>--->

            <SELECT name="proCity" class="form-control margin-bottom1" placeholder="City" ng-model="searchParam.City">
                   <option disabled="disabled" selected="selected" value="">City</option> 
                   <option value=""></option>
                      <cfoutput query="UCarecityFind">
                      <option value=#officecity#>#officecity#</option>
                    </cfoutput> 
                  </select>

        </div>
       <hr / style="border-width: thick; background-color: black" >
        <div style="margin-top:-10px; margin-bottom:10px; text-align:center; font-size:8pt! important"><strong>OR<br> Search by ZIP CODE RADIUS </strong></div>

        <div class="row">
            <div class="col-xs-7 no-right-padding">
                <div class="form-group">
                    <div class="input-group"><select class="form-control" name="distance" ng-model="searchParam.Distance" ng-options="mile.value for mile in miles"><option selected="selected" value=" "></option><option >5</option><option>10</option><option>15</option><option>20</option></select>
                        <div class="input-group-addon">miles</div>
                    </div>
                </div>
            </div>

            <div class="col-xs-5 no-left-padding widthZip">
                <div class="form-group"><input allow-pattern="[\d\W]" class="form-control" id="zip" maxlength="5" ng-model="searchParam.Zip" placeholder="Zip code" type="text" /></div>
            </div>
        </div>


        <div class="form-group"><input class="btn btn-warning btn-block" ng-click="gotoElement('SearchResultsAnchor');" type="submit" value="Search" /></div>
    </form>
</div>

以下代码显示基于用户选择/输入的结果：

<div>
    <nav class="hidden-xs visible-md visible-lg" ng-show="ShowResults"><uib-pagination boundary-links="true" max-size="maxPageNumbersToShow" ng-model="currentPage" total-items="resultsCount"> </uib-pagination></nav>

    <nav class="visible-xs hidden-md hidden-lg" ng-show="ShowResults"><uib-pager ng-model="currentPage" total-items="resultsCount"> </uib-pager></nav>

    <div class="container" id="searchResults" ng-repeat="e in urgentCareCenters" ng-show="ShowResults">
        <div class="row">
            <hr />
            <div class="col-md-12 no-margin">
                <h4>{{e.OfficeName}}</h4>
            </div>
        </div>

        <div class="row">
            <div class="col-md-4"><strong>Address:</strong> <i class="glyphicon glyphicon-map-marker"></i> <a href="https://maps.google.com?saddr=Current+Location&amp;daddr={{e.GoogleParams}}" target="_blank"> {{e.OfficeAddress}}</a><br />
                <a class="shiftAddUrgent padding" href="https://maps.google.com?saddr=Current+Location&amp;daddr={{e.GoogleParams}}" target="_blank">{{e.OfficeCity}}, {{e.OfficeState}} {{e.OfficeZipCode}}</a></div>

            <div class="col-md-4 no-margin padding"><strong>Phone: </strong><i class="glyphicon glyphicon-earphone"></i> {{e.OfficePhone | PhoneNumber}}<br />
                <strong>Office hours: </strong> <i class="glyphicon glyphicon-time"></i> {{e.OfficeHours}}</div>
        </div>
    </div>

    <nav class="visible-xs hidden-md hidden-lg" ng-show="ShowResults">
        <hr /><uib-pager ng-model="currentPage" total-items="resultsCount"> </uib-pager></nav>
</div>

我想在显示结果之前检查值是否重复。如果他们是重复的信息，我想阻止它。我怎么做到这一点？

以下代码是我用来检索数据的代码。我仍在学习角度，所以如果代码看起来很糟糕或者这是一个简单的解决方案，我会道歉。

(
function(){
    var $scope, $location;
    var urgentCareApp = angular.module('urgentCareApp',['ui.bootstrap']);

    urgentCareApp.controller('UrgentCareController',function($scope,$http,$location,anchorSmoothScroll){
        $scope.Lang = 'initVal';
        $scope.ShowResults = false;
        $scope.ShowDesc = true;
        $scope.NoResults = false;
        $scope.currentPage = 1;
        $scope.maxPageNumbersToShow = 10;
        $scope.formModel = {};
        $scope.searchMode = 0;
        $scope.miles =  [{'value':'5'},{'value':'10'},{'value':'15'},{'value':'20' }];
        $scope.searchParam = {};

        $scope.searchParam.Distance = $scope.miles[0];
        console.log($scope.searchParam.Distance);
        //$scope.searchParam.Specialty = $scope.Specialties[0];

        $scope.GetCurrentZip = function (){
            try{
                var lon, lat;
                console.log('starting geoposition code.');
                if("geolocation" in navigator){
                    window.navigator.geolocation.getCurrentPosition(function(pos){
                        lat = pos.coords.latitude.toFixed(3);
                        lon = pos.coords.longitude.toFixed(3);
                        console.log(lat + ' ' + lon);
                        $http.get("/includes/remote/ReturnCurrentZipcode.cfm?Lat=" + lat + "&Lon=" + lon)
                        .success(function(response){
                            console.log('Response: ' + response);
                            $scope.searchParam.Zip = response;
                            console.log('object set');
                        })
                    })
                }
                else if($scope.searchParam.Zip != ""){

                }
                else{ console.log('No geolocation'); }
            }
            catch(err) { console.log(err.message); }
        }

        $scope.GetCityList = function (){
            try{
                $http.get("/includes/remote/ReturnUrgentCareCityList.cfm")
                    .success(function(response){
                        $scope.Cities = response.Cities;
                    })
            }
            catch(err){}
        }

        $scope.SearchUrgentCare = function(searchParam){
            try{
                $scope.searchMode = 1;
                var queryString='';
                if($scope.formModel && $scope.formModel !== searchParam){
                    $scope.resultsCount = 0;
                    currentPage = 1;
                }
                if(searchParam){
                    $scope.formModel = searchParam;
                    for(var param in searchParam){
                        console.log(param + ' ' + searchParam.hasOwnProperty(param) + ' ' + searchParam[param]);
                        if(searchParam.hasOwnProperty(param)){
                            var paramValue = searchParam[param].value ? searchParam[param].value.trim() : searchParam[param].trim();
                            if (paramValue.length > 0)
                                queryString += param + '=' + paramValue + '&';
                        }
                    }
                }
                console.log(queryString);
                queryString= '?' + queryString + 'currentpage=' + $scope.currentPage;

                $http.get("/includes/remote/ReturnUrgentCareList.cfm" + queryString)
                .success(function(response){
                    $scope.urgentCareCenters = response.UrgentCareCenters;
                    $scope.resultsCount = response.rowCount;
                    if (!$scope.urgentCareCenters){
                            $scope.NoResults = true;
                            $scope.ShowResults = false;
                            $scope.ShowDesc = false;
                        }
                    else{
                            $scope.NoResults = false;
                            $scope.ShowResults = true;
                            $scope.ShowDesc = false;
                        }
                })
            }
            catch(err){ alert('No response.: ' + err.message); }
        }

        $scope.$watchGroup(['currentPage'], function(){
            try{
                if($scope.searchMode == 1){
                    $scope.SearchUrgentCare($scope.formModel);
                    }
            }
            catch(err){}
        });


        $scope.GetCityList();
        $scope.GetCurrentZip();

        $scope.gotoElement = function (eID){
            var browserWidth = screen.availWidth;
            if (browserWidth < 768)
                anchorSmoothScroll.scrollTo(eID);
        };

    });

    urgentCareApp.service('anchorSmoothScroll', function(){
        this.scrollTo = function(eID) {

            // This scrolling function 
            // is from http://www.itnewb.com/tutorial/Creating-the-Smooth-Scroll-Effect-with-JavaScript

            var startY = currentYPosition();
            var stopY = elmYPosition(eID);
            var distance = stopY > startY ? stopY - startY : startY - stopY;
            if (distance < 100) {
                scrollTo(0, stopY); return;
            }
            var speed = Math.round(distance / 100);
            if (speed >= 20) speed = 20;
            var step = Math.round(distance / 25);
            var leapY = stopY > startY ? startY + step : startY - step;
            var timer = 0;
            if (stopY > startY) {
                for ( var i=startY; i<stopY; i+=step ) {
                    setTimeout("window.scrollTo(0, "+leapY+")", timer * speed);
                    leapY += step; if (leapY > stopY) leapY = stopY; timer++;
                } return;
            }
            for ( var i=startY; i>stopY; i-=step ) {
                setTimeout("window.scrollTo(0, "+leapY+")", timer * speed);
                leapY -= step; if (leapY < stopY) leapY = stopY; timer++;
            }

            function currentYPosition() {
                // Firefox, Chrome, Opera, Safari
                if (self.pageYOffset) return self.pageYOffset;
                // Internet Explorer 6 - standards mode
                if (document.documentElement && document.documentElement.scrollTop)
                    return document.documentElement.scrollTop;
                // Internet Explorer 6, 7 and 8
                if (document.body.scrollTop) return document.body.scrollTop;
                return 0;
            }

            function elmYPosition(eID) {
                var elm = document.getElementById(eID);
                var y = elm.offsetTop;
                var node = elm;
                while (node.offsetParent && node.offsetParent != document.body) {
                    node = node.offsetParent;
                    y += node.offsetTop;
                } return y;
            }
        };
    });

    urgentCareApp.directive('allowPattern',[allowPatternDirective]);
    function allowPatternDirective(){
        return{
            restrict: "A",
            compile: function(tElement, tAttrs){
                return function(scope, element, attrs){
                    element.bind("keypress", function(event){
                        var keyCode = event.which || event.keyCode;
                        var keyCodeChar = String.fromCharCode(keyCode);

                        if(!keyCodeChar.match(new RegExp(attrs.allowPattern, "i"))){
                            event.preventDefault();
                            return false;
                        }
                    });
                }
            }
        }
    }

    urgentCareApp.filter('PhoneNumber', function(){
    return function(phoneNumber){
        var dash = '-';
        var openParen = '(';
        var closeParen = ') ';
        if(phoneNumber){
            var pn = phoneNumber;
            pn = [pn.slice(0, 6), dash, pn.slice(6)].join('');
            pn = openParen + [pn.slice(0, 3), closeParen, pn.slice(3)].join('');
            return pn;
            }
        return phoneNumber;
        }
    });

})();

(function($) {
  // @todo Document this.
  $.extend($,{ placeholder: {
      browser_supported: function() {
        return this._supported !== undefined ?
          this._supported :
          ( this._supported = !!('placeholder' in $('<input type="text">')[0]) );
      },
      shim: function(opts) {
        var config = {
          color: '#888',
          cls: 'placeholder',
          selector: 'input[placeholder], textarea[placeholder]'
        };
        $.extend(config,opts);
        return !this.browser_supported() && $(config.selector)._placeholder_shim(config);
      }
  }});

  $.extend($.fn,{
    _placeholder_shim: function(config) {
      function calcPositionCss(target)
      {
        var op = $(target).offsetParent().offset();
        var ot = $(target).offset();

        return {
          top: ot.top - op.top,
          left: ot.left - op.left,
          width: $(target).width()
        };
      }
      function adjustToResizing(label) {
        var $target = label.data('target');
        if(typeof $target !== "undefined") {
          label.css(calcPositionCss($target));
          $(window).one("resize", function () { adjustToResizing(label); });
        }
      }
      return this.each(function() {
        var $this = $(this);

        if( $this.is(':visible') ) {

          if( $this.data('placeholder') ) {
            var $ol = $this.data('placeholder');
            $ol.css(calcPositionCss($this));
            return true;
          }

          var possible_line_height = {};
          if( !$this.is('textarea') && $this.css('height') != 'auto') {
            possible_line_height = { lineHeight: $this.css('height'), whiteSpace: 'nowrap' };
          }

          var isBorderBox = ($this.css('box-sizing') === 'border-box');
          var isTextarea = $this.is('textarea');

          var ol = $('<label />')
            .text($this.attr('placeholder'))
            .addClass(config.cls)
            .css($.extend({
              position:'absolute',
              display: 'inline',
              'float':'none',
              overflow:'hidden',
              textAlign: 'left',
              color: config.color,
              cursor: 'text',
              paddingTop: !isTextarea && isBorderBox ? '0' : $this.css('padding-top'),
              paddingRight: $this.css('padding-right'),
              paddingBottom: !isTextarea && isBorderBox ? '0' : $this.css('padding-bottom'),
              paddingLeft: $this.css('padding-left'),
              fontSize: $this.css('font-size'),
              fontFamily: $this.css('font-family'),
              fontStyle: $this.css('font-style'),
              fontWeight: $this.css('font-weight'),
              textTransform: $this.css('text-transform'),
              backgroundColor: 'transparent',
              zIndex: 99,
            }, possible_line_height))
            .css(calcPositionCss(this))
            .attr('for', this.id)
            .data('target',$this)
            .click(function(){
                if (!$(this).data('target').is(':disabled')) {
                    $(this).data('target').focus();
                }
            })
            .insertBefore(this);
            $this
                .data('placeholder', ol)
                .on('keydown', function () {
                    ol.hide();
                })
                .on('blur change', function () {
                    ol[$this.val().length ? 'hide' : 'show']();
                })
                .triggerHandler('blur');
          $(window).one("resize", function () { adjustToResizing(ol); });
        }
      });
    }
  });
})(jQuery);

jQuery(document).add(window).bind('ready load', function() {
  if (jQuery.placeholder) {
    jQuery.placeholder.shim();
  }
});

Answer 1

这将根据某个属性删除数组中的对象。所以......

const removeDuplicates= (myArr, prop) => {
  return myArr.filter((obj, pos, arr) => {
      return arr.map(mapObj => mapObj[prop]).indexOf(obj[prop]) === pos;
  });
}


$http.get("/includes/remote/ReturnUrgentCareList.cfm" + queryString)
  .success(function(response){
    var dupsRemoved = removeDuplicates(response.UrgentCareCenters,'OfficeName');
    $scope.urgentCareCenters = dupsRemoved
    // ... rest of code
   }

此外，您还需要在HTML中的ng-repeat中添加track by。您可以使用$ index或id。

<div class="container" id="searchResults" ng-repeat="e in urgentCareCenters track by $index" ng-show="ShowResults">
    <div class="row">
        <hr />
        <div class="col-md-12 no-margin">
            <h4>{{e.OfficeName}}</h4>
        </div>
    </div>

    <div class="row">
        <div class="col-md-4"><strong>Address:</strong> <i class="glyphicon glyphicon-map-marker"></i> <a href="https://maps.google.com?saddr=Current+Location&amp;daddr={{e.GoogleParams}}" target="_blank"> {{e.OfficeAddress}}</a><br />
            <a class="shiftAddUrgent padding" href="https://maps.google.com?saddr=Current+Location&amp;daddr={{e.GoogleParams}}" target="_blank">{{e.OfficeCity}}, {{e.OfficeState}} {{e.OfficeZipCode}}</a></div>

        <div class="col-md-4 no-margin padding"><strong>Phone: </strong><i class="glyphicon glyphicon-earphone"></i> {{e.OfficePhone | PhoneNumber}}<br />
            <strong>Office hours: </strong> <i class="glyphicon glyphicon-time"></i> {{e.OfficeHours}}</div>
    </div>
</div>

防止重复值出现在Angular

1 个答案: