dgrid and DateTextBox - json

I am trying to get a dgrid OnDemandGrid to work with dijit.form.DateTextBox as an editor. The data is fed to OnDemandGrid via JSON. Initially, I was trying to feed dates in the raw format from the MySQL database (e.g. YYYY-MM-DD HH:MM:SS), however when DateTextBox seemed incapable of parsing that string, I tried feeding it just the date (e.g. 2012-11-20). However, this too failed to work.
So, my primary issue is getting DateTextBox to process the date information. A secondary issue is how to deal with the time information, since DateTextBox cannot edit times. My current approach is that when I split the SQL date string, I am feeding dgrid the time as a separate column for a dijit.form.TimeTextBox. This seems like a messy solution, so I'm open to suggestions.
Here's my grid code:
var grid = new declare([OnDemandGrid, Editor, Keyboard, Selection])({
store: store,
query: {aid: "1900", action: "objectListGenerator2" },
bufferRows: 40,
loadingMessage: "Loading...",
columns: [
{field: "oid", label: "Object ID"},
Editor({field: "startDate", name: "Start Date", editorArgs: { selector: 'date', datePattern: 'yyyy-mm-dd', locale: 'en-us' }}, DateTextBox, "click"),
Editor({field: "startTime", name: "Start Time"}, TimeTextBox, "click"),
Editor({field: "endDate", name: "End Date"}, DateTextBox, "click"),
Editor({field: "endTime", name: "End Time"}, TimeTextBox, "click"),
{field: "endDateOid", label: "End OID"}
],
}, "grid");
Here's a sample string of my JSON source:
[{"content":"2012-11-20 18:12:00","oid":"2112","author":"","endDateOid":"2113","group":"","endTime":"17:59:00","poid":"0","id":null,"startTime":"18:12:00","gmt":"2012-11-22 00:12:43","name":"The Windows 8 Disaster Rolls On","paid":"1900","endDate":"2012-11-21","type":"startDate","startDate":"2012-11-20","cache":"","cachedate":"0000-00-00 00:00:00"},
{"content":"2013-01-01 17:59:00","oid":"2114","author":"","endDateOid":"2115","group":"","endTime":"16:59:00","poid":"0","id":1,"startTime":"17:59:00","gmt":"2012-11-22 00:14:49","name":"The Windows 8 Disaster Rolls On","paid":"1900","endDate":"2013-01-02","type":"startDate","startDate":"2013-01-01","cache":"","cachedate":"0000-00-00 00:00:00"}]

As I noted in the comments, if I remove "click" from the column definition and thus allow the DateTextBox to be created immediately, the correct date shows up. I'm not sure why the data is not parsed properly if the DateTextBox is added later, but at least creating it immediately yields a workable result.

Related

Sending data to CloudWatch using the AWS-SDK

I want to write data to CloudWatch using the AWS-SDK (or whatever may work).
I see this:
The only method that looks remotely like publishing data to CloudWatch is the putMetricData method..but it's hard to find an example of using this.
Does anyone know how to publish data to CloudWatch?
When I call this:
cw.putMetricData({
Namespace: 'ec2-memory-usage',
MetricData: [{
MetricName:'first',
Timestamp: new Date()
}]
}, (err, result) => {
console.log({err, result});
});
I get this error:
{ err:
{ InvalidParameterCombination: At least one of the parameters must be specified.
at Request.extractError (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/protocol/query.js:50:29)
at Request.callListeners (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/sequential_executor.js:106:20)
at Request.emit (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/sequential_executor.js:78:10)
at Request.emit (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/request.js:683:14)
at Request.transition (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/request.js:22:10)
at AcceptorStateMachine.runTo (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/state_machine.js:14:12)
at /Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/state_machine.js:26:10
at Request.<anonymous> (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/request.js:38:9)
at Request.<anonymous> (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/request.js:685:12)
at Request.callListeners (/Users/alex/codes/interos/jenkins-jobs/jobs/check-memory-ec2-instances/node_modules/aws-sdk/lib/sequential_executor.js:116:18)
message: 'At least one of the parameters must be specified.',
code: 'InvalidParameterCombination',
time: 2019-07-08T19:41:41.191Z,
requestId: '688a4ff3-a1b8-11e9-967e-431915ff0070',
statusCode: 400,
retryable: false,
retryDelay: 7.89360948163893 },
result: null }
You're getting this error because you're not specifying any metric data. You're only setting the metric name and the timestamp. You also need to send some values for the metric.
Let's say your application is measuring the latency of requests and you observed 5 requests, with latencies 100ms, 500ms, 200ms, 200ms and 400ms. You have few options for getting this data into CloudWatch (hence the At least one of the parameters must be specified. error).
You can publish these 5 values one at a time by setting the Value within the metric data object. This is the simplest way to do it. CloudWatch does all the aggregation for you and you get percentiles on your metrics. I would not recommended this approach if you need to publish many observations. This option will result in the most requests made to CloudWatch, which may result in a big bill or throttling from CloudWatch side if you start publishing too many observations.
For example:
MetricData: [{
MetricName:'first',
Timestamp: new Date(),
Value: 100
}]
You can aggregate the data yourself and construct and publish the StatisticValues. This is more complex on your end, but results in the fewest requests to CloudWatch. You can aggregate for a minute for example and execute 1 put per metric every minute. This will not give you percentiles (since you're aggregating data on your end, CloudWatch doesn't know the exact values you observed). I would recommend this if you do not need percentiles.
For example:
MetricData: [{
MetricName:'first',
Timestamp: new Date(),
StatisticValues: {
Maximum: 500,
Minimum: 100,
SampleCount: 5,
Sum: 1400
}
}]
You can count the observations and publish Values and Counts. This is kinda the best of both worlds. There is some complexity on your end, but counting is arguably easier than aggregating into StatisticValues. You're still sending every observation so CloudWatch will do the aggregation for you, so you'll get percentiles. The format also allows more data to be sent than in the option 1. I would recommend this if you need percentiles.
For example:
MetricData: [{
MetricName:'first',
Timestamp: new Date(),
Values: [100, 200, 400, 500],
Counts: [1, 2, 1, 1]
}]
See here for more details for each option: https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/CloudWatch.html#putMetricData-property

Ruby sort_by for arrays returned by MySQL, date formatted as string

I have a database that has a task table. In that table, there is a date column. Those dates are formatted as strings, they aren't Date.
I'm trying to sort these tasks by date. I already have an array of the tasks named tasks. I'm trying to replace it with the sorted array called tasksByDate using the below code.
tasksByDate = tasks.sort_by do |task|
task[:date].to_date
end
The error I'm getting is:
TypeError: no implicit conversion of Symbol into Integer
I also tried without to_date just to see if it would sort it without it being a date, and just being a string.
The date field is formatted as a string like so 2016-08-29. I used the to_date method on it somewhere else in the code, and it works great, so I didn't really think that was the problem.
Edit 1
I have checked that tasks actually contains a date, and it is formatted like explained.
The output of p task.class is Array
Edit 2
The output of p task is
[#<User id: 10, login: "my.name", hashed_password: "", date: "2016-08-29">]
The elements appear to be nested deeper than you expected them to be. Change the your code to:
# use '{ }' instead of 'do end' for a single-line blocks
tasksByDate = tasks.sort_by { |task| task.first[:date].to_date }
Explanation:
What you see as an output of p task:
[#<User id: 10, login: "my.name", hashed_password: "", date: "2016-08-29">]
It means that this is an Array of elements. Notice the enclosing braces [ ]. So what you have to do in this case is task.first, which will return:
#<User id: 10, login: "my.name", hashed_password: "", date: "2016-08-29">
From there you should be able to access the element's values by a key, like you intended:
task.first[:date]

ImmutableJs - compare objects but for one property

I am converting a shopping basket to an immutable structure.
Is there an easy way with immutablejs to see if an immutable object already exists within an immutable list EXCEPT for one object property 'quantity' which could be different? List example:
[{
id: 1,
name: 'fish and chips',
modifiers: [
{
id: 'mod1',
name: 'Extra chips'
}
],
quantity: 2
},{
id: 2,
name: 'burger and chips',
modifiers: [
{
id: 'mod1',
name: 'No salad'
}
],
quantity: 1
}]
Now, say I had another object to put in the list. But I want to check if this exact item with modifiers exists in the list already? I could just do list.findIndex(item => item === newItem) but because of the possible different quantity property then it wont work. Is there a way to === check apart from one property? Or any way to do this without having to loop through every property (aside from quantity) to see if they are the same?
Currently, I have an awful nested loop to go through every item and check every property to see if it is the same.
Well this should work-
list.findIndex(item => item.delete("quantity").equals(newItem.delete("quantity"))
The equals method does deep value comparison. So once you delete the quantity, you are comparing all values that matter.
PS: please ignore code formatting, I am on SO app.
PPS: the above code is not optimal, you should compare a pre-trimmed newItem inside the arrow function instead of trimming it there.

Ember many-to-many Ids are not included in JSON payload on post?

I have a meeting and a sales-rep models, The relation is ManyToMany.
The problem is, When I want to create a New meeting, and assign existing salesReps to it (They are already saved to the store), But The salesReps IDS are not included in The post action caused by model.save() (not even an empty array), To make it more clear, Here is what my code looks like:
meeting.coffee:
Meeting = DS.Model.extend
client: DS.belongsTo('client')
salesReps: DS.hasMany('sales-rep')
memo: DS.attr('string')
startDate: DS.attr('date')
duration: DS.attr()
sales-rep.coffee:
SalesRep = DS.Model.extend
meetings: DS.hasMany('meeting')
firstName: DS.attr('string')
lastName: DS.attr('string')
title: DS.attr('string')
meetings/new.coffee (the save action am using inside new meeting controller):
save: ->
meeting = #get('model')
meeting.set('client', #get('client'))
meeting.get('salesReps').pushObjects(#get('salesReps.content'))
meeting.save().then =>
#transitionToRoute 'meetings'
the JSON payload: ( POST http://localhost:4200/api/meetings)
meeting: {memo: null, start_date: null, duration: "00:15", client_id: null}
client_id: null
duration: "00:15"
memo: null
start_date: null
No matter what, There is no ANY trace of the salesReps ids in the payload!!
What I tried so far:
Setting the hasMany relation in the meeting model only.
Setting {async: true}, and then {async: false}, on both SalesRep, And
then on one of them
spending almost 2 days googling and reading all related posts in here
with no luck
Any Help/hints/Advice, Is highly appreciated
I will write the solution I found after endless reading and researching, I will write the full details, and trial/failure i've been through, Because no one, no one EVER should have to spend more than 3 days trying to fix something like that!!
I am using Ember-cli, So, there are a files/directories structure am following:
First attempt:
Trying all combinations of async: true, embedded true and what not.
Result, No luck
Second attempt:
in app/serializers/ I added the following serializer file:
meeting.coffee
`import DS from "ember-data"`
`import Ember from "ember"`
`import config from '../config/environment'`
get = Ember.get
serializer = DS.RESTSerializer.extend
serializeHasMany: (record, json, relationship) ->
rel_ids = get(record, relationship.key).map (rel) -> get(rel, 'id') || []
json["#{relationship.key.underscore().singularize()}_ids"] = rel_ids
json
`export default serializer`
result:
Adding this serializer, And I finally was able to send sales_rep_ids:[] array to the controller! and I could confirm that the server is saving the accociations as required.
But, When listing meetings, I was not able to list the associated salesReps, So, I checked the JSON am getting from the server, and it was correct (salesReps Ids were included!) But still not listed in Ember
Third Attempt:
After more reading and endless head-banging-against-the-wall, Changing ONE line fixed the problem!:
in app/serializers/meeting.coffee
change serializer = DS.RESTSerializer.extend to
serializer = DS.ActiveModelSerializer.extend
And Voila! Saved to the back-end, And listed correctley as association in ember!
This solution is a result of 3+ of constant headache, Am posting it here hopefully it might be helpful to someone facing the same problem, I can't claim that it's my own solution, but, It's the result of reading many people's code.
am not sure if it's the Ember way to do so, So, Any suggestions, Improvements Ideas and thought are welcome.

I can't manage to create 3rd level of dijit.Tree

I wanted to create a 3 level dijit.Tree, like that:
-root
|
--level1
|
--level2
I thought it would be really simple since there's a code snippet in this tutorial (example 1). But somehow I manage to fail.
This is my dojo code (variable names are in Polish, I hope it's not a problem):
modelRaportow = new dijit.tree.ForestStoreModel({
store: new dojo.data.ItemFileReadStore({
url: "logika/getJSON/getStatusRaportow.php"
}),
query: {typ: 'galaz'},
rootId: 'statusRaportuRoot',
rootLabel: 'Status raportu',
childrenAttrs: 'raporty'
});
drzewoRaportow = new dijit.Tree({
openOnClick: true,
model: modelRaportow,
showRoot: true,
persist: false
}, "target-status-raportow");
drzewoRaportow.startup();
This is my JSON returned by logika/getJSON/getStatusRaportow.php (again, names are in Polish):
{
"identifier":"id",
"label":"status",
"items": [
{"id":0,"status":"zaakceptowane","typ":"galaz"
"raporty":[{"_reference":1},{"_reference":2},{"_reference":3}]},
{"id":1,"data":"24-10-2011","wykonujacy":"cblajszczak","idKlienta":3,"status":"Raport0","typ":"lisc"},
{"id":2,"data":"24-10-2011","wykonujacy":"cblajszczak","idKlienta":1,"status":"Raport1","typ":"lisc"},
{"id":3,"data":"24-10-2011","wykonujacy":"cblajszczak","idKlienta":3,"status":"Raport2","typ":"lisc"},
{"id":4,"status":"odrzucone","typ":"galaz"
"raporty":[{"_reference":5},{"_reference":6},{"_reference":7}]},
{"id":5,"data":"24-10-2011","wykonujacy":"cblajszczak","idKlienta":1,"status":"Raport3","typ":"lisc"},
{"id":6,"data":"24-10-2011","wykonujacy":"cblajszczak","idKlienta":3,"status":"Raport4","typ":"lisc"},
{"id":7,"data":"24-10-2011","wykonujacy":"cblajszczak","idKlienta":3,"status":"Raport5","typ":"lisc"}
]}
And finally, this is what I'm getting: img - root node and lvl 1 nodes returned by query, no child nodes.
The question is - where is my mistake? Can anyone see it?
You have no comma between the typ and raporty value pair.
I have a partial answer: by stepping through the code in a similar situation, I've discovered that it expects childrenAttrs to be an array, so it should be:
childrenAttrs: ['raporty']
but I still cannot get the third level to appear in my case.