Filter df when values matches part of a string in pyspark
I have a large `pyspark.sql.dataframe.DataFrame` and I want to keep (so `filter`) all rows where the URL saved in the `location` column contains a pre-determined string, e.g. 'google.com'. I have trie...
- Modified
- 21 Dec at 04:29
Is there a difference between passing a function to a delegate by ref?
I came upon this piece of C# code that uses delegates and passes the function to the delegate by reference... ``` delegate bool MyDel(int x); static bool fun(int x) { return x < 0...
SELECT list is not in GROUP BY clause and contains nonaggregated column .... incompatible with sql_mode=only_full_group_by
I'm using MySQL 5.7.13 on my windows PC with WAMP Server My problem is while executing this query ``` SELECT * FROM `tbl_customer_pod_uploads` WHERE `load_id` = '78' AND `status` = 'Active' GROU...
- Modified
- 12 Jan at 18:31
Does SignInAsAuthenticationType allow me to get an OAuth token without overwriting existing claims?
I need a user to login to a website using out of the box authentication to Facebook. I now need to link to the users drive in Google (and other services). I want to use ASP.Net Identity OAuth Identi...
- Modified
- 27 Jan at 02:6
How can I mock the JavaScript 'window' object using Jest?
I need to test a function which opens a new tab in the browser ``` openStatementsReport(contactIds) { window.open(`a_url_${contactIds}`); } ``` I would like to mock 's `open` function, so I can ver...
- Modified
- 4 Aug at 21:6
Django - is not a registered namespace
I am trying to process a form in django/python using the following code. --- home.html: ``` <form action="{% url 'home:submit' %}" method='post'> ``` --- views.py: ``` def submit(request): ...
- Modified
- 25 May at 13:37
navigation property should be virtual - not required in ef core?
As I remember in EF [navigation property should be virtual](https://stackoverflow.com/questions/25715474/why-navigation-properties-are-virtual-by-default-in-ef): ``` public class Blog { publi...
- Modified
- 23 May at 12:18
mysqli_real_connect(): (HY000/2002): No such file or directory
``` mysqli_real_connect(): (HY000/2002): No such file or directory ``` PhpMyAdmin error on MacOS. I want answer I really have no idea what I need to do to resolve this.
- Modified
- 27 Dec at 19:50
What does IRedisClient.As<T>() do behind the scenes?
I'm curently using the c# ServiceStack RedisClient in the following way ``` using (var cache = new BasicRedisClientManager(readWriteHosts).ClientFactory.GetClient()) { var r = cache.As<Foo...
- Modified
- 26 Jan at 17:23
How do I set multipart in axios with react?
When I curl something, it works fine: ``` curl -L -i -H 'x-device-id: abc' -F "url=http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4" http://example.com/upload ``` How do I get this to work right ...
- Modified
- 26 Jan at 16:57
How do I move the panel in Visual Studio Code to the right side?
It's at the bottom by default. For example in the following image ,panel(Section D) is at the bottom, instead I want it to move to the rightside i.e., in the area where README.md editior shown in Edit...
- Modified
- 5 May at 04:30
Exclude complete services from swagger-ui with servicestack
I am trying to figure out a way to hide/remove complete services from the swagger-UI. According to the [documentation](https://github.com/ServiceStack/ServiceStack/wiki/Swagger-API%22documentation%22)...
- Modified
- 27 Jan at 09:13
How to extract custom JWT properties using servicestack
I can successfully authenticate against a servicestack endpoint secured with an `Authenticate` attribute when supplying the below JWT as a bearer token in an `authorization` header. Some properties a...
- Modified
- 26 Jan at 12:41
Newtonsoft Json Error converting value {null} to type 'System.Int32'
When performing an AJAX request I am getting the following error: > Error converting value {null} to type 'System.Int32'. Path '[5].tabID', line 1, position 331. The error occurs on the second line ...
- Modified
- 26 Jan at 12:40
Are these try/catch'es equivalent?
I have a method that does database operation (let's say). If during that operation any exception is raised, I just want to throw that exception to the caller. I don't want to do any specific task in...
How can I bind an array with asp-for tag?
I would like to ask, how can I bind an array in Asp.NET Core MVC ? ``` <input type="text" asp-for="Requests[@index].Name" /> ``` It was working very well in older versions of ASP MVC. This example ...
- Modified
- 9 Mar at 06:37
MailKit C# SmtpClient.Connect() to Office 365 generating exception: "An existing connection was forcibly closed by the remote host"
I have a problem sending email via Office 365 SMTP and MailKit. The exception I get is: > Unhandled Exception: System.IO.IOException: Unable to read data from the transport connection: An existing ...
Updating php version on mac
I want to update php version, currently I have 5.5.38 and I want 7.1 What I tried so far is using this command: ``` curl -s https://php-osx.liip.ch/install.sh | bash -s 7.1 ``` I tried several dif...
Validate ModelState.IsValid globally for all controllers
In my ASP.NET Core Controllers I always check if the ModelState is valid: ``` [HttpPost("[action]")] public async Task<IActionResult> DoStuff([FromBody]DoStuffRequest request) { if (!ModelState.IsV...
- Modified
- 26 Jan at 12:6
Refresh user cookie ticket in ASP.Net Core Identity
In a controller in an ASP.NET Core web application I want to refresh the user and claims in the cookie ticket stored on the client. The client is authenticated and authorized, ASP.NET Core Identity s...
- Modified
- 26 Jan at 11:53
How does JSON deserialization in C# work
I am trying to understand how `JsonConvert.DeserializeObject<X>(someJsonString)` is able to set the values by using the constructor. ``` using Newtonsoft.json public class X { [JsonProperty("so...
Unit test ServiceStack services in ServiceStack 3.9.71
I recently took a .Net project over which exposes DAOs from a Microsoft SQL Database via ServiceStack(3.9.71) REST API. Since I am gonna refactor some parts I want to unit test (at least) all services...
- Modified
- 31 Jan at 13:1
Pass action delegate as parameter in C#
I have a method which accepts an `Action` delegate and executes the given method as shown here: ``` public void ExpMethod(Action inputDel) { inpuDel(); } ``` I can call above given method like ...
JWT web token encryption - SecurityAlgoritms.HmacSha256 vs SecurityAlgoritms.HmacSha256Signature
For token based authentication `Microsoft.IdentityModel.Tokens` provides a list of security algorithms that can be used to create `SigningCredentials`: ``` string secretKey = "MySuperSecretKey"; by...
- Modified
- 17 Mar at 19:25
Unable to start postgresql.service?
I'm using arch linux (4.8.13-1-ARCH). I'm trying to set up PostgreSQL as instructed [here](https://wiki.archlinux.org/index.php/PostgreSQL). After performing ``` [postgres@BitBox ~]$ initdb --locale...
- Modified
- 8 Feb at 22:44