Entity Framework Core: A second operation started on this context before a previous operation completed

I'm working on a ASP.Net Core 2.0 project using Entity Framework Core And in one of my list methods I'm getting this error: InvalidOperationException: A second operation started on this context before a previous operation completed. Any instance members are not guaranteed to be thread safe. Microsoft.EntityFrameworkCore.Internal.ConcurrencyDetector.EnterCriticalSection() This is my method: [HttpGet("{currentPage}/{pageSize}/")] [HttpGet("{currentPage}/{pageSize}/{search}")] public ListResponseVM GetClients([FromRoute] int currentPage, int pageSize, string search) { var resp = new ListResponseVM(); var items = _context.Clients .Include(i => i.Contacts) .Include(i => i.Addresses) .Include("ClientObjectives.Objective") .Include(i => i.Urls) .Include(i => i.Users) .Where(p => string.IsNullOrEmpty(search) || p.CompanyName.Contains(search)) .OrderBy(p => p.CompanyName) .ToPagedList(pageSize, currentPage); resp.NumberOfPages = items.TotalPage; foreach (var item in items) { var client = _mapper.Map(item); client.Addresses = new List(); foreach (var addr in item.Addresses) { var address = _mapper.Map(addr); address.CountryCode = addr.CountryId; client.Addresses.Add(address); } client.Contacts = item.Contacts.Select(p => _mapper.Map(p)).ToList(); client.Urls = item.Urls.Select(p => _mapper.Map(p)).ToList(); client.Objectives = item.Objectives.Select(p => _mapper.Map(p)).ToList(); resp.Items.Add(client); } return resp; } I'm a bit lost especially because it works when I run it locally, but when I deploy to my staging server (IIS 8.5) it gets me this error and it was working normally. The error started to appear after I increase the max length of one of my models. I also updated the max length of the corresponding View Model. And there are many other list methods that are very similar and they are working. I had a Hangfire job running, but this job doesn't use the same entity. That's all I can think to be relevant. Any ideas of what could be causing this?

Read More

MJML to HTML using PHP

MJML is a markup language designed to reduce the pain of writing responsive email templates. Using this package, you can convert MJML to HTML. The post MJML to HTML using PHP appeared first on Laravel News. Join the Laravel Newsletter to get Laravel articles like this directly in your inbox. ---

Read More

Taking mean of consequitive non NA values in data table in R

For the below data table library(data.table) test = data.table(date = c("2006-01-31", "2006-03-20", "2006-03-28", "2006-05-03", "2006-05-04", "2006-06-29", "2006-09-11"), value = c(NA, -0.028, NA, 0.0245, -0.008, NA, -0.009)) I need the mean of consequitive Non NA values as a separate column in the above data table. For eg, the resultant data table would look like this library(data.table) test = data.table(date = c("2006-01-31", "2006-03-20", "2006-03-28", "2006-05-03","2006-05-04", "2006-06-29", "2006-09-11"), value = c(NA, -0.028, NA, 0.0245, -0.008, NA, -0.009), value_new = c(NA, -0.028, NA,0.008, 0.008, NA, -0.009)) Tried doing this using rle and data table functions but not getting the correct output. Thanks in advance

Read More

How to group json objects by using keys of sub value objects using jq

I have a json file in the format { "hello": [ { "name": "var1", "value": "1234" }, { "name": "var2", "value": "2356" }, { "name": "var3", "value": "2356" } ], "hi": [ { "name": "var1", "value": "3412" }, { "name": "var2", "value": "2563" }, { "name": "var3", "value": "4256" } ], "bye": [ { "name": "var1", "value": "1294" }, { "name": "var2", "value": "8356" }, { "name": "var3", "value": "5356" } ] } I want to convert this object into this format { "output": [ { "var1": { "hello": "1234", "hi": "3412", "bye": "1294" } }, { "var2": { "hello": "2356", "hi": "2563", "bye": "8356" } }, { "var3": { "hello": "2356", "hi": "4256", "bye": "5356" } } ] } so far i've tried multiple ways using to_entries and map functions in jq to create the contents inside the output variable jq 'to_entries | map(.value[]| . += {"key_v" : (.key)} )' input.json > output.json this is the closest i came to a solution * extracting keys and add to the key value pair of the object * use map(select()) to group by keys but i am getting errors in both the steps such as cannot index array with string name or string value.

Read More

Generate Saloon SDKs from Postman or OpenAPI

The Saloon SDK generator package for Saloon will help you generate SDKs from Postman collections and OpenAPI specifications. The post Generate Saloon SDKs from Postman or OpenAPI appeared first on Laravel News. Join the Laravel Newsletter to get Laravel articles like this directly in your inbox. ---

Read More

Laravel Ajax Cross-Origin Request Blocked ?

 

You can enable CORS in Laravel by adding the following code to the app/Http/Middleware/VerifyCsrfToken.php file:

protected $addHttpCookie = true;
protected $except = [
    '/*'
];

This code tells Laravel to exclude all routes from CSRF protection, allowing cross-origin requests to be made without being blocked.

You can also use this Alternatively way.

Step 1: Install Compose Package

Alternatively, you can install the barryvdh/laravel-cors package using Composer to enable CORS in your Laravel application. This package provides a middleware that you can add to your Laravel application to allow cross-origin requests. Here are the steps to install and use the package:

Install the package using Composer:

composer require barryvdh/laravel-cors

Step 2: Add Middleware

Add the following code to the $middleware array in the app/Http/Kernel.php file:

\Barryvdh\Cors\HandleCors::class

Step 2: Configure CORS

Add the following code to the config/cors.php file to specify the domains that are allowed to make cross-origin requests:

'allowed_origins' => [
    '*',
],
'allowed_methods' => [
    'POST',
    'GET',
    'OPTIONS',
    'PUT',
    'PATCH',
    'DELETE',
],
'allowed_headers' => [
    'Content-Type',
    'X-Requested-With',
    'Authorization',
],

With these steps,

Read More

How to push a docker image to a local registry from job container?

I'm using docker executor with DinD in Gitlab CI, and I have a local registry container running in the host machine. I want to push an image that is being built in the job container to the local registry container running in the host machine. Normally what would you do if pushing from the host computer is pushing to the localhost at the port of the registry container. Like this: docker push localhost:5000/my-ubuntu but since I'm pushing from the job container I don't know how to do this. I tried with the host computer ip: docker push some_ip_address:5000/my-ubuntu but I got: The push refers to repository [some_ip_address:5000/my-ubuntu] Get "
https://some_ip_address:5000/v2/": http: server gave HTTP response to HTTPS client and the job failed...

Read More

Laravel Nova CSV Import v0.7 - Password Hashing, Random Strings and Combined Fields

I've been putting a load of effort into my Nova package lately and it's paying off with some cool new features that I released a few days ago. Here's a video running through the basics of each. Hope you find them useful! Password Hashing Being able to use password hashing algos on data as it's imported is something I don't see in a lot of CSV import tools and always something I thought would be really useful on rare occasions, so here it is in Nova CSV Import Random String Generation If using pre-existing is just not enough, now you can generate random strings on-the-fly! Great when combined with Password Hashing as it allows you to very securely create bundles of user records from a CSV import without any concerns over passwords being discovered Combined Fields The last thing you want to do with CSVs is be manually editing them before importing. I think every ETL process should have a way to merge data from multiple fields into one. CSV Import now lets you do this with ease and flexibility! submitted by /u/simonhamp [link] [comments]

Read More

Flutter Web: Loading data from URL fails

When trying to fetch image data inside a custom ImageProvider from an URL, I get an error: ClientException: XMLHttpRequest error., uri=
https:///api/v1/images//thumbnail-squared The host however has CORS enabled and returns a header "access-control-allow-origin" -> "*". The URL redirects a 302 to a signed google cloud storage file however. Might this be the issue?

Read More