Angular：嵌套指令中传递的参数是状态＆＃34;未定义＆＃34;
我们正在关注http://mfauveau.github.io/angular-query-builder/中的示例并对其进行修改以符合我们的要求。
我们有一个模态视图（.jsp），它集成了指令（命名为＆＃39; querybuilder＆＃39;，图片中的黄色部分 - 一个js文件）。控制器（命名为＆＃39; addEditRuleSetCtrl＆＃39;）和指令包含在上层，包含似乎很好。
我们已从视图（.jsp文件）中启动指令：
<div ng-init="addEditRuleSetCtrl.initSelectors()">
<query-builder group="addEditRuleSetCtrl.filter.group"
rule-condition-operators="addEditRuleSetCtrl.ruleConditionOperators"
rule-condition-set-operators="addEditRuleSetCtrl.ruleConditionSetOperators"
fields="addEditRuleSetCtrl.getCorrespondingFields()"
></query-builder>
</div>
我们已将视图/ .jsp中的指令模板包括在内（请注意，在创建新组时，此指令会再次在此处启动）：
<script type="text/ng-template" id="/queryBuilderDirective.html">
<div class="alert alert-warning alert-group">
<div class="form-inline">
<select ng-options="o as o.operator for o in ruleConditionSetOperators" ng-model="group.operator" class="form-control input-sm"></select>
<button style="margin-left: 5px" ng-click="addCondition()" class="btn btn-sm btn-success"><span class="glyphicon glyphicon-plus-sign"></span> Add Condition</button>
<button style="margin-left: 5px" ng-click="addGroup()" class="btn btn-sm btn-success"><span class="glyphicon glyphicon-plus-sign"></span> Add Group</button>
<button style="margin-left: 5px" ng-click="removeGroup()" class="btn btn-sm btn-danger"><span class="glyphicon glyphicon-minus-sign"></span> Remove Group</button>
</div>
<div class="group-conditions">
<div ng-repeat="rule in group.rules | orderBy:'index'" class="condition">
<div ng-switch="rule.hasOwnProperty('group')">
<div ng-switch-when="true">
<query-builder group="rule.group"
rule-condition-operators="addEditRuleSetCtrl.ruleConditionOperators"
rule-condition-set-operators="addEditRuleSetCtrl.ruleConditionSetOperators"
fields="addEditRuleSetCtrl.getCorrespondingFields()"
></query-builder>
</div>
<div ng-switch-default="ng-switch-default">
<div class="form-inline">
<select ng-options="t.name as t.name for t in fields" ng-model="rule.field" class="form-control input-sm"></select>
<select style="margin-left: 5px" ng-options="c as c.operator for c in ruleConditionOperators" ng-model="rule.condition" class="form-control input-sm"></select>
<input style="margin-left: 5px" type="text" ng-model="rule.data" class="form-control input-sm"/>
<button style="margin-left: 5px" ng-click="removeCondition($index)" class="btn btn-sm btn-danger"><span class="glyphicon glyphicon-minus-sign"></span></button>
</div>
</div>
</div>
</div>
</div>
</div>
我们的问题是：树/组的第一层具有所有参数（字段，规则条件集运算符，规则条件运算符）的正确值。因此，在第一层中，所有相关的下拉列表都显示了正确的值。但是当我点击按钮＆＃34;添加组＆＃34;在第一层，所有的参数现在都是＆＃34;未定义＆＃34;因此，从第二层开始的所有下拉列表都是空的（由图中的红色箭头标记显示）。
问题是：
- 从组的第2层开始是正确的吗？ params超出了控制器的范围，因为它们已被定义 在视图块之外？
- 如何让小组的所有层都可以使用参数？
以下是视图（.jsp文件）：
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<link
href="<c:url value='aviato/ruleEngine/addEditRuleSet/css/addeditruleset.css' />"
rel="stylesheet">
</link>
<%--<script src="aviato/ruleEngine/addEditRuleSet/directive/addEditRuleSet_directive.js"></script>--%>
<form name="addEditRuleSetModalForm" novalidate class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title">
{{addEditRuleSetCtrl.windowHeader}}
<button type="button" class="btn btn-danger btn-sm pull-right"
ng-click="addEditRuleSetCtrl.close()" data-toggle="uibtooltip" title="Cancel" >
<span class="glyphicon glyphicon-remove-sign"></span>
</button>
</h4>
</div>
<div class="modal-body">
Hello world [origin] : {{ addEditRuleSetCtrl.origin }}
<br />
Hello world [iceField] : {{ addEditRuleSetCtrl.iceField }}
Output: {{ addEditRuleSetCtrl.output }}
<div class="alert alert-info">
<strong>Example Output</strong><br>
Output: {{ addEditRuleSetCtrl.output }}
</div>
<div ng-init="addEditRuleSetCtrl.initSelectors()">
<query-builder group="addEditRuleSetCtrl.filter.group"
rule-condition-operators="addEditRuleSetCtrl.ruleConditionOperators"
rule-condition-set-operators="addEditRuleSetCtrl.ruleConditionSetOperators"
fields="addEditRuleSetCtrl.getCorrespondingFields()"
></query-builder>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-primary btn-sm" ng-click="addEditRuleSetCtrl.test()" data-toggle="tooltip" ><span class="glyphicon glyphicon-ok-sign" ></span></button><span></span>
</div>
</div>
</form>
<script type="text/ng-template" id="/queryBuilderDirective.html">
<div class="alert alert-warning alert-group">
<div class="form-inline">
<select ng-options="o as o.operator for o in ruleConditionSetOperators" ng-model="group.operator" class="form-control input-sm"></select>
<button style="margin-left: 5px" ng-click="addCondition()" class="btn btn-sm btn-success"><span class="glyphicon glyphicon-plus-sign"></span> Add Condition</button>
<button style="margin-left: 5px" ng-click="addGroup()" class="btn btn-sm btn-success"><span class="glyphicon glyphicon-plus-sign"></span> Add Group</button>
<button style="margin-left: 5px" ng-click="removeGroup()" class="btn btn-sm btn-danger"><span class="glyphicon glyphicon-minus-sign"></span> Remove Group</button>
</div>
<div class="group-conditions">
<div ng-repeat="rule in group.rules | orderBy:'index'" class="condition">
<div ng-switch="rule.hasOwnProperty('group')">
<div ng-switch-when="true">
<query-builder group="rule.group"
rule-condition-operators="addEditRuleSetCtrl.ruleConditionOperators"
rule-condition-set-operators="addEditRuleSetCtrl.ruleConditionSetOperators"
fields="addEditRuleSetCtrl.getCorrespondingFields()"
></query-builder>
</div>
<div ng-switch-default="ng-switch-default">
<div class="form-inline">
<select ng-options="t.name as t.name for t in fields" ng-model="rule.field" class="form-control input-sm"></select>
<select style="margin-left: 5px" ng-options="c as c.operator for c in ruleConditionOperators" ng-model="rule.condition" class="form-control input-sm"></select>
<input style="margin-left: 5px" type="text" ng-model="rule.data" class="form-control input-sm"/>
<button style="margin-left: 5px" ng-click="removeCondition($index)" class="btn btn-sm btn-danger"><span class="glyphicon glyphicon-minus-sign"></span></button>
</div>
</div>
</div>
</div>
</div>
</div>
</script>
指令（.js文件）：
AddEditRuleSetApp.directive('queryBuilder', ['$compile', function ($compile) {
return {
restrict: 'E',
scope: {
group: '=',
ruleConditionOperators: '=',
ruleConditionSetOperators: '=',
fields: '='
},
templateUrl: '/queryBuilderDirective.html',
compile: function (element, attrs) {
var content, directive;
content = element.contents().remove();
return function (scope, element, attrs) {
scope.addCondition = function () {
window.alert("[addCondition] : " + "group : " + JSON.stringify( scope.group) + "...BREAK..."
+"fields : " + JSON.stringify( scope.ruleConditionOperators) + "...BREAK..."
+"Condition : "+JSON.stringify(scope.ruleConditionOperators) + "...BREAK..."
+"Condition set: "+JSON.stringify(scope.ruleConditionSetOperators));
scope.group.rules.push({
condition: '=',
field: 'Firstname',
data: ''
});
};
scope.removeCondition = function (index) {
scope.group.rules.splice(index, 1);
};
scope.addGroup = function () {
window.alert("[addGroup] :" + "group : " + JSON.stringify( scope.group) + "...BREAK..."
+" fields : " + JSON.stringify( scope.fields) + "...BREAK..."
+"Condition : "+JSON.stringify(scope.ruleConditionOperators) + "...BREAK..."
+"Condition set: "+JSON.stringify(scope.ruleConditionSetOperators));
scope.group.rules.push({
group: {
operator: 'AND',
rules: []
}
});
};
scope.removeGroup = function () {
"group" in scope.$parent && scope.$parent.group.rules.splice(scope.$parent.$index, 1);
};
directive || (directive = $compile(content));
element.append(directive(scope, function ($compile) {
return $compile;
}));
}
}
}
}]);
控制器：
AddEditRuleSetApp.controller( 'AddEditRuleSetModalController', [ '$scope', '$rootScope', '$uibModalInstance','RuleEngineService', 'origin', 'iceField','FileService',
function( $scope, $rootScope , $uibModalInstance, RuleEngineService, origin, iceField, FileService )
{
var self = this;
self.origin = origin;
self.iceField = iceField;
self.data = '{"group": {"operator": "AND","rules": []}}';
self.output = 'bologna';
self.fieldsDDE = [
{ name: 'FirstnameDDE' },
{ name: 'LastnameDDE' },
{ name: 'BirthdateDDE' },
{ name: 'CityDDE' },
{ name: 'CountryDDE' }
];
self.fieldsATT = [
{ name: 'FirstnameATT' },
{ name: 'LastnameATT' },
{ name: 'BirthdateATT' },
{ name: 'CityATT' },
{ name: 'CountryATT' }
];
self.ruleConditionSetOperators = [
];
self.ruleConditionOperators = [
];
self.filter = JSON.parse(self.data);
self.initSelectors = function()
{
self.getRuleConditionOperators();
self.getRuleConditionSetOperators();
}
self.getRuleConditionOperators = function()
{
if ( self.ruleConditionOperators.length == 0 )
{
RuleEngineService.getAllRuleConditionOperators()
.then(
function( d )
{
self.ruleConditionOperators = d;
},
function( errResponse )
{
console.error( 'Error while fetching rule-condition-operators' );
}
);
}
return self.ruleConditionOperators;
};
self.getRuleConditionSetOperators = function()
{
if ( self.ruleConditionSetOperators.length == 0 )
{
RuleEngineService.getAllRuleConditionSetOperators()
.then(
function( d )
{
self.ruleConditionSetOperators = d;
},
function( errResponse )
{
console.error( 'Error while fetching rule-condition-operators' );
}
);
}
return self.ruleConditionSetOperators;
};
self.htmlEntities = function(str)
{
return String(str).replace(/</g, '<').replace(/>/g, '>');
};
self.displayErrorMessages = false;
self.createSuccess = '';
self.createHeader = '';
self.backendErr = "";
self.windowHeader = "Create/Edit Rule Group";
self.close = function()
{
$uibModalInstance.close();
};
self.getCorrespondingFields = function()
{
// window.alert("---------------Reached client side controller to getCorrespondingFields");
return self.origin == 'DDE' ? self.fieldsDDE : self.fieldsATT;
};
self.computed = function(group)
{
window.alert("Inside controller: computed");
if (!group) return "";
for (var str = "(", i = 0; i < group.rules.length; i++) {
i > 0 && (str += " <strong>" + group.operator + "</strong> ");
str += group.rules[i].group ?
self.computed(group.rules[i].group) :
group.rules[i].field + " " +
//htmlEntities(group.rules[i].condition)
group.rules[i].condition
+ " " + group.rules[i].data;
}
return str + ")";
};
$scope.$watch('filter', function (newValue)
{
self.output = self.computed(newValue);
}, true);
self.test = function()
{
window.alert(JSON.stringify( self.filter) );
};
}
]);
截图：
我可以在这里得到任何帮助吗？提前谢谢。
1 个答案:
答案 0 :(得分：0)
这是我的解决方法（将此添加到指令中），这有助于：
class Data:
"""Mixin class"""
data = [42]
class Foo(Data):
"""Mixin class"""
def do_foo_to_data(self):
# call a dozen functions that do complicated stuff to data
class Bar(Data):
"""Mixin class"""
def do_bar_to_data(self):
# call other functions that do different stuff to data
class Baz(Foo, Baz):
pass
所以，该指令现在看起来像：
scope.fieldCodes = scope.$parent.fieldCodes;
scope.ruleConditionOperators = scope.$parent.ruleConditionOperators;
scope.ruleConditionSetOperators = scope.$parent.ruleConditionSetOperators;
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