imi | imi 是基于 Swoole 的 PHP 协程开发框架，它支持 | Application Framework library
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kandi X-RAY | imi Summary
imi 是基于 Swoole 的 PHP 协程开发框架，它支持 Http、Http2、WebSocket、TCP、UDP、MQTT 等主流协议的服务开发，特别适合互联网微服务、即时通讯聊天im、物联网等场景！。QQ群：17916227
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QUESTION
Hi. I have quite a problem with the insertMany() function. My goal is:
- to observe a file named "List.json"
- if there are changes in it then reading the file
- then write documents from the file List.json to the database mongoDb List.json file is uploaded by user on the page.
The problem is that my function is working but it's writing me documents after 2 or 3 times. I don't know what it is caused by. I would like one document from the List.json file to be added only 1 time. If it is possible I would like the program to check if a document with the given "Nazwisko" already exists in the database. If it exists then do not add it to the database.
I do not use Moongose. I use only mongoDb and node.js I know little about mongo
This is my function
...ANSWER
Answered 2021-May-22 at 13:02From the code snippet you posted it seems that everything is fine, what I think is happening is that you're using watch to track file changes ( i'm assuming a different process writes data into that file or something of the sort) and it just triggers multiple times.
The insertMany is working as intended, you're just inserting the same document multiple times due to multiple file changes.
What I would do is build a unique index on the relevant fields that define a document uniqueness, potentially all fields.
Now when you try to insert a document that violates the uniqueness constraint it will fail, It is important to note that if you choose this solution you must use the ordered: false option for the insertMany. If you choose to remove it for whatever reason then a failed insert will make the any document that has not been inserted yet to fail as well.
Inserting a duplicate value for any key that is part of a unique index, ... With ordered to false, the insert operation would continue with any remaining documents.
QUESTION
I have a problem with enterning a value (string) into structure field.. Can someone show me how it should look correctly? I wanna add a string (surname/nazwisko) from console's window into student1.nazwisko but i dont know how it should look. This is related to dynamic memory allocation
...ANSWER
Answered 2021-May-17 at 17:44The member nazwisko is an array statically allocated in the structure.
To read a string to that via scanf(), you should specify the maximum number of characters to read to (at most) the buffer size minus one (this "minus one" is for the terminating null-character) and check if reading succeeded using the return value.
With these points, it will be like this, for example:
QUESTION
I wrote simple program in PL/SQL to reduce price. When I call procedure I intentionally pass arguments which are not in database, so cursor doesn't return any data.
Here is problem: my exception not working. Expression like kursor%notfound check if kursor not returns any data or is not declared?
I am confused, because while I was doing research some people said that kursor%notfound returns true when there is no data found, but in my program it doesn't work. When it comes to this:
ANSWER
Answered 2021-May-04 at 13:28That's not going to work. in your cursor for loop, if your code enters the loop, then that implies that one or more records where found, and %notfound cursor attribute will never be true. You have a couple of options.
keep a counter in the loop and check after exit
create or replace procedure reduce_price(surname_p varchar2, name_p varchar2, percents number default 5)is
QUESTION
Is it possible to make pagination on query like this DB::raw? I have got same column names in tables witch i am joining. When i add paginate at the end i am getting "Call to a member function paginate() on array".
...ANSWER
Answered 2021-Apr-28 at 07:30you cannot do paginate in array so convert this Raw query in Query Builder like this
QUESTION
I have problem with InvocationTargetException. I am setting values of object using scanner and it became to return such strange exception for me. I did read doc and i was searching internet to find solution, but I can't figure out what's wrong. Also don't read println strings, they are in my native language.
...ANSWER
Answered 2021-Apr-15 at 12:12Print e.printStackTrace() inside of Exception e block and then it points to the actual stack trace in the JDK Library. Go inside of it in the library and figure out which line is throwing error and figure out the solution based on line number in JDK Library.
QUESTION
That after a input data should show button bellow but obserable doesnt work at all
I have made 3 statuses each for input and if all of them is true I should show button (another status)
How could i display a button after input in all fields. If you need more code please tell me
...ANSWER
Answered 2021-Apr-08 at 14:02In your view model you should create a method to update btn_status, and call after each status is set:
QUESTION
I have recently changed my plot to a dygraph and even though everything works fine when I run the app locally, I get the error message:
...ANSWER
Answered 2021-Mar-24 at 02:18I put everything in a single app.R file and it works fine : https://hleviel.shinyapps.io/testapp/
QUESTION
I have decided to change my basic plot() for a dygraph() but the dygraph isn't rendering (even though there is no error message). I have tested dygraphs in R shiny using the documentation and it worked. Could someone help me? Note that if you replace the dygraph at the end of my function with a basic plot(c(1,2),c(2,3)) the plot will render.
UI
...ANSWER
Answered 2021-Mar-23 at 02:36The error here is because removeModal() is the last expression of the renderDygraph() block, so it's return in interpreted as the plot while it's the return of RunPlot(...) that contains the plot:
QUESTION
I am using a function to print a plot. This function will only be called once in order to print the plot to the UI (when I click on the "Go" button). The problem is that the plot only prints to the console and not to the UI. There is no error message. I think there might be a problem with my renderPlot. Here is my code:
UI
...ANSWER
Answered 2021-Mar-20 at 11:53You should have the observeEvent outside the renderPlot. To make it not react to changes in tickers, you need to isolate() the reactive variables.
QUESTION
I have defined a function in the server as " RunPlot <- function(tickers, sharesVec, FromDate, ToDate)". The function should return a single numerical value. I want to output this value by clicking on the button "Go", but when I click on the button, nothing happens. Also, I have tried calling this function in a separate script and everything worked so there is no error inside the function. Here is my code:
UI
...ANSWER
Answered 2021-Mar-19 at 02:22Your object BETA is only available inside the observer. One way to make it available outside is to create a reactiveValues object as shown below.
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PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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