How get full objets with pointers?.
I have this
ParseObject { _objCount: 4, className: 'Task', id: 'I593WXO24i' }
Update:
This is my code
var taskQuery = new Parse.Query("Task");
taskQuery.get(req.params.task,{
success: function(task){
console.log(task);
},
error: function(error){
errorCodeFor(res, "not_found", "item.task", "Task was not found");
}
});
But when console.log(task).I have a pointers.I want the full object.
You can use the include method:
https://docs.parseplatform.org/js/guide/#relational-queries
It would be something like this:
query.include('myPointerFieldName');
Related
Let's say I have a component with tpl in HTML format, which has a variable named testname, default value is null.
A listener of beforerender calls to a function in viewController, and in this function, I need to load a store and a callback function to update the variable testname in the view, based on the store record returned.
The problem I met is the order of code execution. The function in the viewController always ended first before the store.load callback get executed. Therefore the front view will never get updated. I have tried to setup the asynchronousLoad to false but it doesn't help.
Here is the code in the viewController.
onViewRendering: function(theView) {
console.log('setp 1');
var theStore = Ext.create('App.store.Test');
theStore.load({
asynchronousLoad: false,
callback: function(record) {
console.log('setp 2');
if (record) {
theView.data.testname = 'updated';
}
}
});
console.log('setp 3');
}
Console log displays in step 1, 3, 2.
And here is the code in the View:
Ext.define('App.view.TestView', {
extend: 'Ext.component',
data:{
testname:null
},
tpl:'<p>{testname}</p>',
listeners: {
beforerender: 'onViewRendering'
}
})
Here is the store code:
Ext.define('App.store.Test', {
extend: 'Ext.data.Store',
alias: 'store.test',
autoLoad: true,
remoteFilter: true,
fields: ['id', 'name'],
proxy: {
type: 'direct',
directFn: 'test.getTest'
}
})
I am new to Extjs and really need some help here, thanks in advance!
To update tpl after store load, you have to call setData method like below:
Code snippet:
onViewRendering: function(theView) {
console.log('setp 1');
var theStore = Ext.create('App.store.Test');
theStore.load({
asynchronousLoad: false,
callback: function(record) {
console.log('setp 2');
if (record) {
theView.setData({testname: 'updated'}); //setData method
}
}
});
console.log('setp 3');
}
I'm having trouble with the AWS DynamoDb JS SDK v2.4.9. I want to use the DocumentClient class as opposed to the lower level DynamoDb class, but can't get it working.
This works:
function testPutItem( callback ) {
var tableName = 'todos';
var params = {
TableName: tableName,
Item: {
user_id: { S : userId },
id: { N : msFromEpoch }, // ms from epoch
title: { S : makeRandomStringWithLength(16) },
completed: { BOOL: false }
}
};
var dynamodb = new AWS.DynamoDB();
dynamodb.putItem(params, function(err, data) {
if (err) console.log(err, err.stack); // an error occurred
else {
console.log(data); // successful response
if (callback) callback(data);
}
});
}
This does not work and gives the error InvalidParameterType: Expected params.Item[attribute] to be a structure for each attribute--as if DocumentClient is expecting the same input as DynamoDb:
function testPutItem( callback ) {
var tableName = 'todos';
var params = {
TableName: tableName,
Item: {
user_id: userId,
id: msFromEpoch,
title: makeRandomStringWithLength(16),
completed: false
}
};
console.log(params);
var docClient = new AWS.DynamoDB.DocumentClient({region: 'us-east-1'});
docClient.put(params, function(err, data) {
if (err) console.log(err, err.stack); // an error occurred
else {
console.log(data); // successful response
if (callback) callback(data);
}
});
}
Does anyone have any idea what I am doing wrong?
I used to have the same issue,
please try with a simple object first, cause it's due to some special characters in your attributes, see my example :
this generates the error
InvalidParameterType: Expected params.Item[attribute] to be a structure
var Item = {
domain: "knewtone.com",
categorie: "<some HTML Object stuff>",
title: "<some HTML stuff>",
html: "<some HTML stuff>""
};
but when i replace the HTML stuff with a formated Html, simple characters , it works
var Item = {
domain: "knewtone.com",
categorie: $(categorie).html(),
title: $(title).html(),
html: $(html).html()
};
I have the following route :
this.route('groupPage', {
path: '/group/:_groupId',
waitOn: function(){
return Meteor.subscribe("groupPage", this.params._groupId);
},
data: function() {
var group = Groups.findOne({_id: this.params._groupId});
var members = Meteor.users.find({_id : {$in: group.memberIds}}); ******** ISSUE HERE******
return {
group: group,
members: members,
}; }});
and the following publication :
Meteor.publishComposite('groupPage', function(groupId, sortOrder, limit) {
return {
// return the group
find: function() {
if(this.userId){
var selector = {_id: groupId};
var options = {limit: 1};
return Groups.find(selector, options);
}
else{
return ;
}
},
children: [
{ // return the members
find: function(group) {
var selector = {_id: {$in: group.memberIds} };
return Meteor.users.find(selector);
}
}
]}}) ;
Now my issue is that : when the related page renders for the first there is no problems but when i actualize the group Page view the line : var members = Meteor.users.find({_id : {$in: group.memberIds}}); gives me the error : undefined object don't have memberIds property. i guess it's because the subscription is not yet ready when doing group.memberIds , isn't it ? Please a hint.
Thanks.
The data function doesn't wait for the subscription to be ready. Further more, subscriptions in the router are considered an anti-pattern for the most part, and should be done in the template: https://www.discovermeteor.com/blog/template-level-subscriptions/
I would pass to the template the groupId, and then get the group and members in the template, like so:
this.route('groupPage', {
path: '/group/:_groupId',
data: function() {
return {
_groupId: this.params._groupId,
}
}
});
and then in the template file:
Template.groupPage.onCreated(function(){
this.subscribe("groupPage", this.data._groupId);
})
Template.groupPage.helpers({
members(function(){
tempInst = Template.instance()
var group = Groups.findOne({_id: tempInst.data._groupId});
return Meteor.users.find({_id : {$in: group.memberIds}});
})
})
The general pattern of your route and publication are all solid. I suspect it's something simple such as:
There is no group with the _id you're using
You're not logged in when you load the route
Here's a version of your code that guards against the error. Note that the publication executes this.ready() instead of just returning if the user is not logged in.
this.route('groupPage', {
path: '/group/:_groupId',
waitOn: function(){
return Meteor.subscribe("groupPage", this.params._groupId);
},
data: function() {
var group = Groups.findOne({_id: this.params._groupId});
var members = group && Meteor.users.find({_id : {$in: group.memberIds}});
return { group: group, members: members };
}
});
Meteor.publishComposite('groupPage', function(groupId,sortOrder,limit) {
return {
find: function() {
if (this.userId) return Groups.find(groupId);
this.ready()
}
},
children: [
find: function(group) {
var selector = {_id: {$in: group.memberIds} };
return Meteor.users.find(selector);
}
]
});
In my Meteor app, I have a simple array field called relatedSentences. It is defined using SimpleSchema
relatedSentences: {
type: [String],
label: "Related Sentence",
optional: false,
defaultValue: []
},
It's data can be seen in the Mongo console:
"_id" : "ei96FFfFdmhPXxRWb",
"sentence" : "the newest one",
"relatedSentences" : [
"Ls6EyBkbcotcyfLyw",
"6HKQroCjZhG9YCuBt"
],
"createdAt" : ISODate("2015-10-25T11:21:25.338Z"),
"updatedAt" : ISODate("2015-10-25T11:41:39.691Z")
But when I try to access this field using this, it is returned as a raw string.
Template.showSentence.helpers({
translations: function() {
console.log("related: " + this.relatedSentences);
Meteor.subscribe('sentences', function() {
var relatedSentences = Sentences.find({_id: {$in: this.relatedSentences} }).fetch();
console.log("rel count" + relatedSentences.length);
return relatedSentences;
});
}
});
In the console I get an error. See the return value from the this.relatedSentences. It is the contents of the array as a string, with a comma interpolated.
related: Ls6EyBkbcotcyfLyw,6HKQroCjZhG9YCuBt
selector.js:595 Uncaught Error: $in needs an array
Not sure what is going on here.
Some Progress
I have made some progress, but not yet at a solution. By adding blackbox: true to the SimpleSchema definition, what looks like an array is now returned... but alas it is still failing. See below.
relatedSentences: {
type: [String],
label: "Related Sentence",
optional: false,
blackbox: true,
defaultValue: []
},
Now I get the results below in the console. The values are now being returned as a quoted array, which is what I expected. But the $in is still not seeing it as an array.
["Ls6EyBkbcotcyfLyw", "6HKQroCjZhG9YCuBt"]
selector.js:595 Uncaught Error: $in needs an array
How did the data get populated
In answer to #Kyll - this is how the data was originally populated. I am using AutoForm,
{{> afQuickField name='relatedSentences.0' value=this._id type="hidden"}}
but then adding the array data via a hook.
AutoForm.addHooks('translateForm', {
onSuccess: function (operation, result, template) {
Meteor.subscribe('sentences', function() {
var translatedSentence = Sentences.findOne(result);
var originalSentenceId = translatedSentence.relatedSentences[0]
Sentences.update(
{ _id: originalSentenceId},
{ $push: { relatedSentences: result}
});
Router.go('showSentence',{ _id: originalSentenceId } );
});
}
});
The problem here is the scope of this. You are referring to it inside the subscribe function, where this has a different context. Set a varibale to this in the context where it works, then use that variable instead:
Template.showSentence.helpers({
translations: function() {
console.log("related: " + this.relatedSentences);
var this_related_sentences = this.relatedSentences;
Meteor.subscribe('sentences', function() {
var relatedSentences = Sentences.find({_id: {$in: this_related_sentences} }).fetch();
console.log("rel count" + relatedSentences.length);
return relatedSentences;
});
}
});
Senario is:
mcalendar: model,
mevent: model,
relationship: mcalendar has_many mevents,
in the mcalendar.show route I have:
model: function(params) {
return this.store.find('mcalendar', params.mcalendar_id);
},
what I want to do is:
to have a function in the mcalendar.show route to return all mevents of mcalendar in the form of an array. Something like this:
A HOOK(maybe afterModel): function(){
//return all mevents like:
return {
events: Ember.A([
{
title: mevent.get('title'),
start: mevent.get('start')
}])
the purpose is to use this array for feeding fullCalendar. I have tried some ways but none of them was successful.
Ember cli: 0.2.7
Thanks
are your mevents returned in the payload when requesting mcalendar? if so, you could do this in the setupController hook instead like...
setupController: function(controller, model) {
controller.set('events', model.get('mevents').toArray());
}
afterModel: function () {
var _this = this;
var model = this.modelFor(this.routeName);
return model.get('mevents').then(function(mevents) {
var allMevents = mevents.map(function(mevent){
return {
title: mevent.get('title'),
start: mevent.get('start')
};
});
_this.controllerFor('mcalendars.show').set('events', allMevents);
});
},