I have written a simple action which connects to mongo db using seneca-mongo store module, execute a list query and get the results. I can see that the query was successful and the correct results were fetched. When I try to send these results back to the client, the respond call errors out with following message and stack trace.
ERROR act root$ OUT cmd:getparams,role:diff 11 {cmd:getparams,role:diff,payload:{id:scalaScan}} ENTRY (dqk22) - seneca: Action cmd:getparams,role:diff callback threw: k.indexOf is not a function. act_callback {message:k.indexOf is not a function,pattern:cmd:getparams,role:diff,instance:Seneca/0.7.2/d0twcki9cmxg/1485517 TypeError: k.indexOf is not a function
at /scratch/DiffAnalyzer/node_modules/seneca/node_modules/seneca-web/web.js:851:13
at Function.forEach (/scratch/DiffAnalyzer/node_modules/lodash/dist/lodash.js:3298:15)
at Object.defaultmodify [as modify] (/scratch/DiffAnalyzer/node_modules/seneca/node_modules/seneca-web/web.js:850:7)
at respond (/scratch/DiffAnalyzer/node_modules/seneca/node_modules/seneca-web/web.js:654:22)
at Seneca.<anonymous> (/scratch/DiffAnalyzer/node_modules/seneca/node_modules/seneca-web/web.js:401:7)
at act_done (/scratch/DiffAnalyzer/node_modules/seneca/seneca.js:1554:16)
at /scratch/DiffAnalyzer/node_modules/gate-executor/gate-executor.js:127:20
at Seneca.<anonymous> (/scratch/DiffAnalyzer/analyze.js:613:5)
at act_done (/scratch/DiffAnalyzer/node_modules/seneca/seneca.js:1554:16)
at /scratch/DiffAnalyzer/node_modules/gate-executor/gate-executor.js:127:20
at /scratch/DiffAnalyzer/node_modules/seneca-mongo-store/mongo-store.js:329:21
at /scratch/DiffAnalyzer/node_modules/mongodb/lib/mongodb/cursor.js:271:33
at /scratch/DiffAnalyzer/node_modules/mongodb/lib/mongodb/cursor.js:778:35
at Cursor.close (/scratch/DiffAnalyzer/node_modules/mongodb/lib/mongodb/cursor.js:1009:5)
at Cursor.nextObject (/scratch/DiffAnalyzer/node_modules/mongodb/lib/mongodb/cursor.js:778:17)
at Cursor.each (/scratch/DiffAnalyzer/node_modules/mongodb/lib/mongodb/cursor.js:264:12)
The action that I have written is
seneca.add("role:diff,cmd:getparams", function(msg, respond) {
seneca.ready(function() {
var collection = seneca.make$("paramStore");
var f = msg.payload;
seneca.log.info("Filter", f);
collection.list$(f, function(err, ob) {
if (err) {
seneca.log.error(err);
respond(err);
} else {
seneca.log.info("Result", ob);
respond(null, ob);
}
});
});
});
The same piece of code was working and now I am getting this error. Not sure what changed. Any help/suggestions are greatly appreciated.
The issue I was facing was because of this bit of code in the module's js file
if( _.isObject( result.out ) ) {
_.each(result.out,function(v,k){
if(~k.indexOf('$') && 'http$' !== k) {
delete result.out[k]
}
})
The _.each function is meant to parse a JSON object, where in my case the out was actually a JSON array. Wrapping the array into an object resolved it.
Related
I am trying to figure out how the Error handling in Sails.js works. Unfortunatley the code examples in the docs do not cover this use case.
The problem is I keep getting this error:
UsageError: `.intercept()` handler returned `undefined`, but this should never happen.
Regardless, here is a summary of the original underlying error:
Now all I am trying to do is call a helper and if it fails, then I want to catch the error (any), log it and run some code. If I wouldn't be using Sails but normal promises I would have handled it like this:
await helper().catch((err) => { // run some code }
In Sails I should be able to use .intercept() instead of .catch()
My code looks like this:
// ExportController.js
const csv = await sails.helpers.files.convertToCsv(data)
.intercept((err) => {
sails.log.error(err)
req.addFlash('error_messages', 'Error parsing data to csv!')
return res.redirect(`/`);
})
// convert-to-csv.js
if (!Array.isArray(inputs.data)) {
throw new Error('invalid inputs.data type: ' + typeof inputs.data)
};
Now how can I avoid getting this error?
The code examples show only cases where errors that are explicitly added to the exits object are handled, but not for general error handling.
In the docs it says that if the filter argument is
not provided, ALL errors will be intercepted.
Or is that only true for db queries? Because the .intercept() doc section is in that subcategory.
You could use “throw ‘errorCode’;” for example:
Set the exits:
exits {
errorWithCsvFile: {
responseType: 'badRequest'
}
}
const csv = await sails.helpers.files.convertToCsv(data)
.intercept(‘somethingWrongCode’, ‘errorWithCsvFile’)
... // Other handles
.intercept(err => new Error(err))
Alternative:
try {
...
const csv = await sails.helpers.files.convertToCsv(data)
.intercept((err) => {
sails.log.error(err)
req.addFlash('error_messages', 'Error parsing data to csv!')
throw 'badRequest';
})
...
} catch (err) {
sails.log.err(err);
return res.redirect(`/`);
}
I have an issue saving changes to an object from a Cloud Code function.
I have a collection called Character and one record inside it.
This Character record has an ACL with Public Read, and Private Write Access by a specific ParseUser (6MwfSLdAxd).
In Unity, I authenticated the user and I then call the Cloud Code function as follows:
ParseCloud.CallFunctionAsync<Character>("startBattle", null).ContinueWith(t =>
{
Debug.Log("I got here...");
Debug.Log(t.Result.ClassName);
});
In my Cloud Code function, I grab the first character in the collection (ignoring checking if it belongs to this user, because at the moment there is only one and it DOES belong to this user - there's only one user too).
var Character = Parse.Object.extend("Character");
Parse.Cloud.define("startBattle", function (request, response) {
var user = request.user;
if (user == null)
{
return response.error("You must login before you can battle!");
}
var characterQuery = new Parse.Query(Character);
characterQuery.first()
.then(
function (character) {
character.set("name", "Cloud Code sucka");
character.save().then(function(character) {
return response.success(character);
});
},
function (error) {
return response.error("You must create a character before you can battle! " + error);
}
)
});
However, I simply cannot save any changes to this character. All the documentation and forum posts I've found suggest that if you call a Cloud Code function when authenticated then that function should have the same level permissions as the user calling it.
The only time this code works is if I set the ACL of the character to Public Write.
Does anyone have any ideas why this wouldn't be working?
Note: Worth noting that I can see in the server logs that the Cloud Code function IS being called by the authenticated user 6MwfSLdAxd as I get this error (if I add a response.error call):
error: Failed running cloud function startBattle for user 6MwfSLdAxd with:
Input: {}
Error: {"code":141,"message":"Messed up: [object Object]"} functionName=startBattle, code=141, message=Messed up: [object Object], , user=6MwfSLdAxd
error: Error generating response. ParseError { code: 141, message: 'Messed up: [object Object]' } code=141, message=Messed up: [object Object]
[object Object]
[object Object]
After some extensive searching I've now found the solution to this.
For anyone else encountering the same issues, you should be aware that whilst Parse.com used to run Cloud Code functions in the context of the user that called them (afaik), self-hosted Parse Servers do not.
In order to call queries or saves in the context of a user you must pass their session token as shown below. I hope this saves someone the hours of confusion I went through!
var MyObject = Parse.Object.extend("MyObject");
Parse.Cloud.define("myCloudFunction", function (request, response) {
var user = request.user;
var sessionToken = user.getSessionToken();
var query = new Parse.Query(MyObject)
.find({ sessionToken: sessionToken })
.then(
function (object) {
object.set("someKey", "someValue");
return object.save(null, { sessionToken: sessionToken });
}
)
.then(
function (object) {
return response.success(object);
},
function (error) {
return response.error(error.message);
}
);
});
For further context see:
https://github.com/ParsePlatform/parse-server/wiki/Compatibility-with-Hosted-Parse#cloud-code
I'm trying to update a collection but I for some reason, even though it traces as having succeeded, when I view that collection in my console it doesn't appear to have updated.
Here's what I'm doing:
1) calling the update function from a javascript function on the client. All the values are being passed correctly:
Meteor.call('minisiteUpdater',vLayout,vColour,vBG,vHFont,vBFont,vFontColour);
2) the function itself (defined in Meteor.methods) is as follows. Note that when I log everything in the console, all the values are passed successfully into the function and the siteID I get from the session var is also correctly set. The problem is that the console is logging "success", which suggests to me that the update has worked, but when I enter Therapistminisite.find().fetch() into the console afterwards and look at the supposedly updated collection item, it has not been updated.
minisiteUpdater: function(vLayout,vColour,vBG,vHFont,vBFont,vFontColour){
var updates = { $set: {
layout: vLayout,
colour: vColour,
backgroundimage: vBG,
headingfont: vHFont,
bodyfont: vBFont,
fontcolour: vFontColour
}};
var siteID = Session.get("currentSiteBuilderID");
Therapistminisite.update(siteID, updates, function (error) {
if (error){
console.log(error);
}
else{
console.log("success");
}
});
},
Finally, just after I get the "success" logged in the console, I also get the following error message: "Error invoking Method 'minisiteUpdater': Internal server error [500]".
Anyone have any ideas?
If that is the method definition for both the server and the client,
you can't call Session.get on the server side, so that method succeeds when called in the browser, but then fails when called on the server. If you look in your server console, you should see a server error: Session is not defined corresponding to the 500 error in the browser console.
try adding the siteId as a method param, and removing the line that gets it from the session:
minisiteUpdater: function(vLayout,vColour,vBG,vHFont,vBFont,vFontColour, siteID){
var updates = { $set: {
layout: vLayout,
colour: vColour,
backgroundimage: vBG,
headingfont: vHFont,
bodyfont: vBFont,
fontcolour: vFontColour
}};
Therapistminisite.update(siteID, updates, function (error) {
if (error){
console.log(error);
}
else{
console.log("success");
}
});
},
(remove this line: var siteID = Session.get("currentSiteBuilderID");)
and then pass in Session.get("currentSiteBuilderID") when you call it from the client like this:
Meteor.call(
'minisiteUpdater',
vLayout,
vColour,
vBG,
vHFont,
vBFont,
vFontColour,
Session.get("currentSiteBuilderID")
);
Working on CoinsManager, I have a model directory with a class per file, and I want to read and list all those files in my collection transform method, to initialize my doc with the correct class.
server/methods.coffee:
Meteor.methods
implemented_coins: ->
"""
Returns a list of coins that have been implemented
"""
files = fs.readdirSync './app/models/cryptos/'
file.replace(".coffee.js", "") for file in files.filter (file) ->
file.search("(base_crypto*)|(js.map)") == -1
collections/addresses.coffee:
if Meteor.isReady
#implementedCoins = Meteor.call "implemented_coins"
#Addresses = new Meteor.Collection "addresses",
transform: (doc) ->
# Retrieve class from code, and pass it the address
if doc.code in #implementedCoins
new #[doc.code] doc.address
else doc
client/views/addresses/addresses_list.coffee
Template.userAddresses.helpers
userAddresses: ->
addresses = Addresses.find
userId: Meteor.user()._id
address.set_balance() for address in addresses
return addresses
Right now, I'm getting the following error on the client console:
Exception from Deps recompute: TypeError: Array.prototype.indexOf called on null or undefined
at indexOf (native)
at Addresses.Meteor.Collection.transform
Which means that in my collection transform, the #implementedCoins variable is undefined, because I didn't implement it correctly.
Any idea how to solve this problem ?
I'm pretty sure that this is wrong:
if Meteor.isReady
#implementedCoins = Meteor.call "implemented_coins"
I don't think there is a field in Meteor with that name, and even if it was, then it would get executed on startup, but at that time isReady is probably false and so your variable doesn't get set. Did you mean Meteor.startup? Secondly, on the client you need to use a callback for call, since there are no fibers on the client.
Would this work instead?
Meteor.startup(function () {
Meteor.call("implemented_coins", function(err, res) {
implementedCoins = res;
});
});
I am trying to send a request parameter through to an 'exports' method for a mongodb find in an express.js, backbone.js application. I am having a difficult
time getting the parameters to pass through to mongodb and with '#'.
The breakage is the passing of parameters into the exported mongodb function.
Here is the flow of data:
First the request is successfully routed to the 'upcoming' function:
"upcoming/uni/:uni" : "upcoming",
It flows on to the 'upcoming' function without a problem.
upcoming: function(uni) {
console.log("uni: "+uni);
pag.reset();
console.log("Hit upcoming list target");
setCollectionType('upcoming');
var upcomingCourses = buildCollection();
// ------------------------------------------------------------------------
// here is the problem how do I pass the parameter value through the fetch?
// Although it may also have to do with '#' please read on.
// ------------------------------------------------------------------------
upcomingCourses.fetch({success: function(){
$("#content").html(new ListView({model: upcomingCourses, page: 1}).el);
}});
this.headerView.selectMenuItem('home-menu');
},
The routing for the mongo methods is:
app.get('/upcoming/uni/:uni', mongomod.findUpcoming);
So the following method is exported from the mongodb js file and is executed reliable. However the req.params are not passed through.
Interspersed in the code I have described its' runtime behaviour:
exports.findUpcoming = function(req, res) {
console.log("university", req.params.uni); // This consistently is unpopulated
var uni = req.params.uni;
console.log("Size: "+req.params.length); // This will always be 0
for (var i=0; i < req.params.length; i++) {
console.log("Parameters: "+req.params[i]);
}
db.collection('upcoming', function(err, collection) {
if (typeof uni === 'undefined') {
console.log("The value is undefined");
uni = "Princeton University"; // here we add a string to test it it will work.
}
collection.find({university:uni}).toArray(function(err, items) {
if (err) {
console.log("Error: "+err);
} else {
console.log("No Error");
console.log("Count: "+items.length);
console.log(items[0]['university']);
res.send(items);
}
});
});
};
On additional and important note:
The url, in a working, runtime environment would be:
http://localhost:3000/#upcoming/uni/Exploratorium
This one fails, but the following URL will work in passing the params through these functions however it returns the JSON to the screen rather then
the rendered version:
http://localhost:3000/upcoming/uni/Exploratorium
The problem could be a miss understanding of # and templates. Please, if you see the error enlightenment would be greatly appreciated.
Nothing after the # gets passed to the server. See How to get hash in a server side language? or https://stackoverflow.com/a/318581/711902.
I found a solution to the problem of passing the parameters from the client side to the server side. By changing the url of the collection the parameters will be passed to the server side:
upcomingCourses.url = "/upcoming/uni/"+uni; // <-- here's the ticket where uni is param
upcomingCourses.fetch({success: function(){
$("#content").html(new ListView({model: upcomingCourses, page: 1}).el);
}});
This can be made more elegant but it is a way to pass the parameters on to the server.
Thanks