我在JSON中有一组看起来像这样的对象，并被分配给 $ rootScope.filteredData对象：
$scope.mapSelections = function(region, state, city, therapy, phase, compound) {
$rootScope.filteredPins = [];
if (!$scope.selectRegion) {
var region = '';
} else {
var region = $scope.selectRegion.Region;
}
if (!$scope.selectState) {
var state = '';
} else {
var state = $scope.selectState.StateName;
}
if (!$scope.selectCity) {
var city = '';
} else {
var city = $scope.selectCity.CityName;
}
if (!$scope.selectTherapy) {
var therapy = '';
} else {
var therapy = $scope.selectTherapy;
}
if (!$scope.selectPhase) {
var phase = '';
} else {
var phase = $scope.selectPhase;
}
if (!$scope.selectCompound) {
var compound = '';
} else {
var compound = $scope.selectCompound;
}
$rootScope.filteredData.forEach(function(itemElement, itemIndex) {
if ((itemElement.TherapeuticArea === therapy && therapy != '') || (itemElement.Compound === compound && compound != '') || (itemElement.Phase === phase && phase != '')) {
console.log('you have a hit on : ' + therapy + ' / Phase: ' + phase + ' / Compound: ' + compound);
itemElement.Locations.forEach(function(locationElement, locationIndex) {
if (locationElement.Region === region || !region) {
locationElement.Sites.forEach(function(siteElement, siteIndex) {
if ((siteElement.State == state && !city) || (siteElement.City == city && siteElement.State == state) || (!state && !city)) {
if (siteElement.Longitude != '' && siteElement.Latitude != '') {
$rootScope.filteredPins.push(siteElement);
$rootScope.filteredDataMapItems.push(itemElement);
// console.table(filteredPins)
return false;
}
}
});
}
});
}
});
};我有3个选择列表，显示“Compound”，“Phase”和“TherapeuticArea”字段中的所有值，以及3个显示Region，State和City的选择列表。从每个选择列表中选择项目允许您根据这六个值过滤此信息的视图。
我正在使用Angular的内置过滤器过滤当前标记中的这些项目，但需要在代码中重写它。使用.forEach，我能够分别对每个项目进行过滤，但不像Angular过滤器那样合作。例如，如果我只过滤“复合”或“相位”，我会得到我应该得到的结果。但是，如果我过滤“复合”和“相位”或三个过滤器的任意组合，我没有得到我期望的结果。
我有一个内部.forEach，它通过选择进行另一个循环来获取位置lat / lng（它被送到另一个在地图上绘制它们的方法）。那部分似乎应该像它应该的那样工作。但外部没有。
以下是代码：
<column>
<select name="selectRegion" class="form-control" ng-model="selectRegion" ng-change="regionSelected(); mapSelections(selectRegion.Region, null, null, selectTherapy, selectPhase, selectCompound)" ng-options="location as location.Region for location in locationObject | orderBy: location.Region:reverse track by location.Region">
<option value="">Select Region</option>
</select>
<select name="selectState" class="form-control" ng-disabled="!selectRegion" ng-model="selectState" ng-change="mapSelections(selectRegion.Region, selectState.StateName, null, selectTherapy, selectPhase, selectCompound)" ng-options="state as state.StateName for state in selectRegion.States | unique: 'state.StateName' | orderBy: 'StateName' ">
<option value="">{{regionSelectMsg}}</option>
</select>
<select name="selectCity" class="form-control" ng-disabled="!selectState" ng-model="selectCity" ng-change="mapSelections(selectRegion.Region, selectState.StateName, selectCity.CityName, selectTherapy, selectPhase, selectCompound)" ng-options="city as city.CityName for city in selectState.Cities | unique: 'city.CityName' | orderBy: 'CitytName' ">
<option value="">Select City</option>
</select>
</column>
<column>
<select name="selectTherapy" class="form-control" ng-model="selectTherapy" ng-options="data.TherapeuticArea as data.TherapeuticArea for data in dataObject | unique: 'TherapeuticArea' | orderBy: 'TherapeuticArea' " ng-change="mapSelections(null, null, null, selectTherapy, selectPhase, selectCompound)">
<option value="">Select Therapeutic Area</option>
</select>
<select name="selectPhase" class="form-control" ng-model="selectPhase" ng-options="data.Phase as ('Phase ' + data.Phase) for data in dataObject | unique: 'Phase' | orderBy: 'Phase' : reverse " ng-change="mapSelections(null, null, null, selectTherapy, selectPhase, selectCompound)">
<option value="">Select Phase</option>
</select>
<select name="selectCompound" class="form-control" ng-model="selectCompound" ng-options="data.Compound as data.Compound + ' ' + data.Compound_2 for data in dataObject | unique: 'Compound' | orderBy: 'Compound' " ng-change="mapSelections(null, null, null, selectTherapy, selectPhase, selectCompound)">
<option value="">Select Compound</option>
</select>
</column>Private Sub Worksheet_SelectionChange(ByVal Target As Range)
If Selection.Count = 1 Then
Dim name As String
Dim triggerCol As String
Dim tableToFilter As String
Dim ClickedInTable As Boolean
Dim lowerColName As String
Dim lower As String
Dim upperColName As String
Dim upper As String
Dim colToFilterRelativeIndex As Integer
Dim colToFilter As String
Dim inHeader As Boolean
Dim inTriggerCol As Boolean
Dim lowerIsHeader As Boolean
Dim lowerCell As Range
Dim upperCell As Range
tableToFilter = "Olive"
colToFilter = "Time Visited"
lowerColName = "End time"
upperColName = "Start time"
triggerCol = "ClickMe"
ClickedInTable = Not (ActiveCell.ListObject Is Nothing)
If ClickedInTable Then
inTriggerCol = (GetColumnName() = triggerCol)
If inTriggerCol Then
inTableBody = Not (ActiveCell.ListObject.Range.row = ActiveCell.row)
If inTableBody Then
Set lowerCell = Range(GetNeighborCell(lowerColName)).Offset(-1)
Set upperCell = Range(GetNeighborCell(upperColName))
lowerIsHeader = (lowerCell.row = ActiveCell.ListObject.Range.row)
If Not (lowerIsHeader) Then
lower = lowerCell.Text
upper = upperCell.Text
colToFilterRelativeIndex = ActiveSheet _
.ListObjects(tableToFilter) _
.ListColumns(colToFilter).index
ActiveSheet.ListObjects(tableToFilter).Range.AutoFilter _
Field:=colToFilterRelativeIndex, _
Criteria1:=">=" & lower, _
Operator:=xlAnd, _
Criteria2:="<=" & upper
ActiveCell.Value = lower & " - " & upper
Else
ActiveCell.Value = "N/A"
End If
End If
End If
End If
End If
End Sub
我也在这个项目中使用了underscoreJS，如果有一个最适合过滤这些类型条件的下划线方法，我愿意使用它。
答案 0 :(得分：0)
我只需要将过滤后的结果保存在我过滤的同一个对象上，这样每个迭代过滤器都会将对象进一步削减到所需的数据集。
if (therapy != '') {
filteredPins = _.filter(filteredPins, function(item) {
return item.TherapeuticArea === therapy;
});
}
if (phase != '') {
filteredPins = _.filter(filteredPins, function(item) {
return item.Phase === phase;
});
}
if (compound != '') {
filteredPins = _.filter(filteredPins, function(item) {
return item.Compound === compound;
});
}