LMS | web based platfotm | Data Visualization library

I use redux in all my lms application built with react and redux and normally save the data received from the API backend in the redux store. My question is: can I keep all the data received in the store or is it better to delete them every time I change the page?

To give a practical example: a part of my application receives a list of courses and I save this list in the store. Then I click on a course, get the list of lessons and save it in the store. Then I click a lesson, get the videos and additional information about the lesson, and save it to the store. Should I keep all these data in the store or (even if I am not sure how) should I ensure that they are deleted every time the related component / page is no longer visible?

I have the following xml which include windows event:

I working with OpenedX Koa-1.0. When I try to send bulk email, Celery raise this error. There are logs:

I have a pipeline in ADF that goes to a REST API endpoint which returns a string enclosed in double quotes ("). It looks like this: "xyz123fj==" What I'm trying to do is store the string value in a variable called AuthKey. Originally I just stored it "as is" but the pipeline failed with the following error: The variable 'AuthKey' of type 'String' cannot be initialized or updated with value of type 'Object'. The variable 'AuthKey' only supports values of types 'String'.

So naturally I thought I would try converting to a string like this: string(@activity('Get Token').output) which actually allows the variable to be stored successfully, but the next step fails with the message: Error calling the endpoint 'https://'. Response status code: ''. More details:Exception message: 'The format of value 'string(@activity('Get Token').output)' is invalid.'. No response from the endpoint. Possible causes: network connectivity, DNS failure, server certificate validation or timeout.

Which I suspect means that it didn't actually store the original 'xyz123fj==' string, but rather the unevaluated function itself as a string (so it stored string(@activity('Get Token').output) which is invalid when sent to the API.

I also tried @string(activity('Get Token').output) which resulted in a slightly different error message of: More details:Exception message: 'The format of value '{"Response":"\"xyz123fj==\"","ADFWebActivityResponseHeaders":{"Pragma":"no-cache","Strict-Transport-Security":"max-age=31536000","X-Absorb-Correlation-Id":"c937fab2-3e6c-4d92-8b28-5375fb2d5721","X-Content-Type-Options":"nosniff","X-Frame-Options":"SAMEORIGIN","X-LMS-Server":"USE1-PRD-WEB-A3","X-Response-For":"/api/Rest/v1/Authenticate","X-XSS-Protection":"1; mode=block","Connection":"keep-alive","Cache-Control":"no-cache","Date":"Mon, 03 May 2021 15:53:01 GMT","Content-Length":"178","Content-Type":"application/json; charset=utf-8","Expires":"-1"},"effectiveIntegrationRuntime":"DefaultIntegrationRuntime (East US)","executionDuration":0,"durationInQueue":{"integrationRuntimeQueue":0},"billingReference":{"activityType":"ExternalActivity","billableDuration":[{"meterType":"AzureIR","duration":0.016666666666666666,"unit":"Hours"}]}}' is invalid.'. No response from the endpoint.

In the last example, it looks like the step that is using the variable is receiving the full output object from the "Set variable" activity rather than just the simple string as intended. Any insight as to what I'm doing wrong here would be much appreciated.

I also tried only trimming the single quotes (so no string conversion function), but couldn't get that to work either. All I'm trying to do is store this string by itself :(

I previously run recat-matcjax2 on react 16. It worked fine. But when update the react version 16 to 17 it does not work perfectly.

I am getting a couple of error.

These are two error files.

Trying to implement :

We have a collection where few documents got duplicated due to an issue in the code. They are large in number (> 280K). Due to some user updates from the front end, these records have been updated. Now, these records cannot be removed as there is some transaction on these records. To avoid this, we are thinking of creating a unique index with a partial expression on the created date. However, this doesn't work. Need help on how to achieve this. As much as I could get in the documentation, a unique index with partial constraints will only consider the matching documents.

A bit introduction, I'm trying to create a LMS that will launch cmi5 course. But, I've trouble in understanding about cmi5 package and some other terms. Here I would like to ask/clarify several points to make it clear.

I've seen TinCan/xAPI sample course/spec (I saw it here) and cmi5 spec here. I found out that they need different query string to launch the content.

To be precised, in TinCan, for the authentication, we could pass auth query string and the Basic {encoded username:password} as the value (here is the reference). The auth then processed by the TinCanJS package (I'm using Javascript). But, in the cmi5 spec, it said to get the token, we could pass fetch query string and the value is our lms that return one time token only. The fetch url will called with POST method.

But, I couldn't found "where is the fetch value being processed in the cmi5 course?" in the AU? I'm still confused with the terms of AU.

1. Who will create it?
2. How it looks like?
3. is it included in the cmi5 course or do I have (as the creator of LMS) to create the AU?

Thank you in advance.

I'm having troubling installing the pg gem on Windows 10.

I've looked around and was able to progress with the first set of errors, but now am stuck with the error shown below.

Most answers I found all are for Linux and OSX and usually revolve around installing libpq-dev,which I'm not able to find for Windows. Given that I've moved past the initial missing libpq-fe.h error, I'm assuming that the required dev files are already included in the Windows installer.

I've tried specifying the folder/lib locations several ways, including:

gem install pg -v '1.1' -- --with-pg-dir="C:\Program Files\PostgreSQL\13" --with-pq-dir="C:\Program Files\PostgreSQL\13"

and

gem install pg -v '1.1' -- --with-pg-config="C:\Program Files\PostgreSQL\13\bin\pg_config.exe"

But neither seem to work. Any suggestions?

Additional info:

Console output

I have to do a college project, where I have to do an LMS, and one of the requirements is to allow the import of SCORM files. However, when I went to research I saw something about SCORM using the flash player, which ended support this year. Can anyone answer the question if SCORM really needs the flash player to work?