I've read countless threads and tried implementing many different suggestions, but haven't had any luck.
first:
function ajaxRequest() {
try {
var request = new XMLHttpRequest();
}
catch(e1) {
try {
var request = new ActiveXObject("Msxml2.HTMLHTTP");
}
catch(e2) {
try {
var request = new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e3) {
var request = false;
}
}
}
return request;
}
It looks like IE is successfully using XMLHttpRequest. As far as I can tell, it's loading the XML fine, but Xpath is another story:
function XMLPath(doc, path) {
try {
return doc.evaluate(path, doc, null, XPathResult.STRING_TYPE, null).stringValue;
} catch (e) {
try {
doc.setProperty("SelectionLanguage", "XPath");
return doc.selectNodes(path);
}
catch(e2) {
alert(e2);
}
}
}
Basically, what must I change in my catch statement to make it work with IE? What's also interesting is that it never alerts an e2 error, meaning it's not actually throwing an error. Totally confused.
Thanks.
Try return doc.selectSingleNode(path).text; for IE, that is the closest you can get for accessing the string value of the node found by your path.
Related
i have a custom saga, which responds to a simple search user action, if it finds a single user, it should show it otherwise go to the user list.
Problem is that when i push the new route, i can see that state changes but the app is not rendering the new route. I looked through the source and cant find any update-blockers.
If i do the push action twice, for some reason, only causing the location key to change again, the app re-renders correctly. Don't know where to keep looking, so any ideas of what the problem is?
import { put, takeEvery, all, call } from "redux-saga/effects";
import { searchUser } from "../services/userService";
import { SEARCH_USER } from "../actions/searchUser";
import { showNotification } from "admin-on-rest";
import { push, replace } from "react-router-redux";
function* handleSearchUser(action) {
try {
const { searchParam } = action.payload;
const filter = {};
if (isNaN(searchParam)) {
filter.Email = searchParam;
} else {
filter.UserId = parseInt(searchParam);
}
const result = yield call(searchUser, 0, 25, filter);
if (result && result.length === 1) {
// Duplicate this row and the page re-renders the correct page
yield put(push(`/User/${result[0].UserId}/show`));
} else {
yield put(
push(
`/User?filter=${JSON.stringify(
filter
)}&order=DESC&sort=id&page=1&perPage=25`
)
);
}
} catch (error) {
console.error(error);
yield put(showNotification("Error: error when searching", "warning"));
}
}
export default function* searchUserSaga() {
yield all([takeEvery(SEARCH_USER, handleSearchUser)]);
}
Was using gatsbyjs. I switched to Create React App for building and all problems went away.
I'm trying to add a simple drop down control above a list such that I can sort it by "created" or "title".
The list template is called posts_list.html. In it's helper .js file I have:
posts: function () {
var sortCriteria = Session.get("sortCriteria") || {};
return Posts.find({},{sort: {sortCriteria: 1}});
}
Then, I have abstracted the list into another template. From here I have the following click event tracker in the helper.js
"click": function () {
// console.log(document.activeElement.id);
Session.set("sortCriteria", document.activeElement.id);
// Router.go('history');
Router.render('profile');
}
Here I can confirm that the right Sort criteria is written to the session. However, I can't make the page refresh. The collection on the visible page never re-sorts.
Frustrating. Any thoughts?
Thanks!
You can't use variables as keys in an object literal. Give this a try:
posts: function() {
var sortCriteria = Session.get('sortCriteria');
var options = {};
if (sortCriteria) {
options.sort = {};
options.sort[sortCriteria] = 1;
}
return Posts.find({}, options);
}
Also see the "Variables as keys" section of common mistakes.
thanks so much for that. Note I've left commented out code below to show what I pulled out. If I required a truly dynamic option, versus the simply binary below, I would have stuck w/ the "var options" approach. What I ended up going with was:
Template.postList.helpers({
posts: function () {
//var options = {};
if (Session.get("post-list-sort")) {
/*options.sort = {};
if (Session.get("post-list-sort") == "Asc") {
options.sort['created'] = 1;
} else {
options.sort['created'] = -1;
}*/
//return hunts.find({}, options);}
console.log(Session.get("hunt-list-sort"));
if (Session.get("hunt-list-sort") == "Asc") {
return Hunts.find({}, {sort: {title: 1}});
}
else {
return Hunts.find({}, {sort: {title: -1}});
};
}
}
});
I am trying to submit data to a server where it is picked and stored in salesforce. The error I am getting is "Attempt to de-reference a null object" at the server. so I am wondering what the problem is...
Below is the sample code:
public static List<String> processAgentVisitSurvey(ProcessSurveySubmission.SurveySubmission submission, Map<String, Submission_Answer__c> answers, Person__c person) {
// Load the TDR
TDR__c tdr = loadTdr(person);
if (tdr == null) {
//Send an email saying that an unregistered person is trying to act a TDR
// Send back the error message
return new String[] { '0', 'User with handset Id ' + submission.imei + ' is not a TDR', 'SUPRESSMSG' };
}
This is the source of the error message.
There is a class the redirects to this method:
private static List<String> additionalProcessing(
SurveySubmission surveySubmission,
Survey__c survey,
Person__c interviewer,
Id intervieweeId
) {
List<String> returnValues = new List<String>();
Map<String, Submission_Answer__c> answers = parseSubmissionToMap(surveySubmission);
// Find the name of the method that this survey hooks into to do its post processing
try {
if (survey.Post_Processing_Method__c.equalsIgnoreCase('None')) {
returnValues.add('0');
returnValues.add('There is no post processing method specified for this survey');
returnValues.add('SUPRESSMSG');
}
else if (survey.Post_Processing_Method__c.equals('CKW_Registration')) {
return CkwRegistration.processCkwRegistration(answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('CKW_Baseline')) {
return CkwRegistration.processCkwBaseline(answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('CKW_Staff_Update')) {
return CkwRegistration.processCkwUpdate(answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('Subcounty_Registration')) {
return CkwRegistration.processSubcounties(answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('TDR_AGENT_VISIT')) {
return TdrHelpers.processAgentVisitSurvey(surveySubmission, answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('UDOM_RAIN_GUAGE')) {
return UDoMSurveyProcessing.processDailyRainGauge(surveySubmission, answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('UDOM_RAIN_GUAGE_REG')) {
return UDoMSurveyProcessing.registerRainGauge(surveySubmission, answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('MTN_CHANNELS')) {
return MtnChannelsHelpers.processChannelsFFPSSurvey(surveySubmission, answers, interviewer);
}
else if (survey.Post_Processing_Method__c.equals('FHI_GROUP_REGISTRATION')) {
return FHISurveysHelpers.processGroupRegistration(surveySubmission, answers, interviewer, survey.Survey_Name__c);
}
else if (survey.Post_Processing_Method__c.equals('FHI_HOUSEHOLD_REGISTRATION')) {
return FHISurveysHelpers.processHouseholdRegistration(surveySubmission, answers, interviewer, survey.Survey_Name__c);
}
// else if (survey.Post_Processing_Method__c.equals('Colombia_Farmer_Registration')) {
// return ColombiaFarmerRegistrationPostProcessor.processSubmission(surveySubmission, answers, interviewer);
// }
else if (survey.Post_Processing_Method__c.equals('FIELD_OFFICER_SUPPORT')) {
return FieldOfficeHelpers.processFoSurvey(surveySubmission, answers, interviewer);
}
// else if (survey.Post_Processing_Method__c.equals('DATA_VALIDATOR_SPOT_CHECK')) {
// return DataValidatorHelpers.processSpotCheck(surveySubmission, answers, interviewer);
// }
// else if (survey.Post_Processing_Method__c.equals('DATA_VALIDATOR_BACK_CHECK')) {
// return DataValidatorHelpers.processBackCheck(surveySubmission, answers, interviewer);
// }
else if (survey.Post_Processing_Method__c.equals('EQUIPMENT_TRACKING')) {
return EquipmentTrackingHelpers.processFieldOfficerSubmission(surveySubmission, answers, interviewer);
}
}
catch (Exception e) {
returnValues.add('0');
returnValues.add(e.getMessage());
returnValues.add('An error occured. Please contact support');
}
return returnValues;
}
which I think is fine...
Please help coz I do not seem to see any problem
Thank you. I hope the code provide is enough.
Usually when I run across that error my first instinct is to look for any queries. In APEX when you return a null value (expected or not) into a single item such as Person__c person = [query that returns objects}; that error is thrown.
The SOLUTION is to ensure data gets returned into a concrete SObject such as...
List<Person__c> persons = [Here is a query or method call];
Then you would check the list with persons.size() This obeys salesforce's Bulkify everything approach they enforce as well as a more robust backend.
Sorry I couldn't provide more support, the error wasn't very evident in your code samples without a line number or debug log.
Good Luck!
Be aware: This error can also appear if you are trying to reference an uninstantiated property of a class.
Example: If you declare a List property of a class, but never instantiate it, and then attempt to add to that list, you will get this error.
I have a function to return Type Object in the class. It is work on webpage, but not windows phone application. The error is "Expected class, delegate, enum, interface or struct". Would anyone tell me how to solve it. Thanks.
There is my code:
public static object GetData(Uri relativeUri)
{
return GetData<object>(relativeUri);
}
public static T GetData<T>(Uri relativeUri)
{
var request = CreateRequest(relativeUri);
HttpWebResponse r;
//return Deserializer<T>(request.GetResponse().GetResponseStream());
try
{
r = (HttpWebResponse)request.GetResponse();
return Deserializer<T>(r.GetResponseStream());
}
catch (WebException webex)
{
HttpWebResponse webResp = (HttpWebResponse)webex.Response;
setSessionError(webResp.GetResponseStream());
}
return Deserializer<T>(request.GetResponse().GetResponseStream());
}
I found it what is wrong on my code. I have extra close bracket that put the function out of the class.
I am using an observer on "http-on-modify-request" to analyze HTTP requests (and responses with the corresponding other observers).
Is it possible to determine whether the HTTP request / response is the main frame loading (the actual page DOM)? As opposed to another resource (image, css, sub_frame, etc.).
The docs have most of the answer you're looking for here and I've modified it below for use with the addon-sdk.
You can watch for an IFRAME by comparing the location with the top.document location.
I don't think there's an easy way to detect loading of images, etc so you'll probably want to just watch for the first hit that's not an IFRAME and regard everything else as css/image/script content loading.
var chrome = require("chrome");
var httpmods = {
observe : function(aSubject, aTopic, aData) {
console.log("observer", aSubject, aTopic, aData);
aSubject.QueryInterface(chrome.Ci.nsIHttpChannel);
var url = aSubject.URI.spec;
var dom = this.getBrowserFromChannel(aSubject);
if (dom) {
if (dom.top.document && dom.location === dom.top.document.location) {
console.log("ISN'T IFRAME");
} else {
console.log("IS IFRAME");
}
}
},
getBrowserFromChannel: function (aChannel) {
try {
var notificationCallbacks =
aChannel.notificationCallbacks ? aChannel.notificationCallbacks : aChannel.loadGroup.notificationCallbacks;
if (!notificationCallbacks)
return null;
var domWin = notificationCallbacks.getInterface(chrome.Ci.nsIDOMWindow);
return domWin;
}
catch (e) {
dump(e + "\n");
return null;
}
}
}
require("observer-service").add("http-on-modify-request", httpmods.observe, httpmods);