bookings | Hotel Management App for Erpnext

I have the following php/mysql database table called 'booking':

Below is the vehicle uploading details file code that uploads details on the firebase. It uploads city, vehicle type, and phone number. I wanted to search for vehicle in the specified city. So basically it matches the details of user. For example a person wants to book vehicle in city Lahore and vehicle type Car so this should search in database if anyone uploaded details matching the description and show it to the user.

In reservation system, only 5 different user can create bookings. If 100 user call booking api at same time than how to handle concurrency with locking. I am using nodejs with mongodb. I went through mongo concurrency article and transactions in mongodb, but cannot find any sample coding solution with locking.

I have achieved solution with Optimistic concurrency control (when there is low contention for the resource - This can be easily implemented using versionNumber or timeStamp field).

Thank you in advance for suggesting me solution with locking.

Now the algorithm is:

Step 1: Get userAllowedNumber from userSettings collection.

We are using keycloak to handle authentication (client/secret) in our API Gateway.

The Kong api service uses konnect-managed-plugin to refer to keycloak to authenicate client credentials and return a bearer token.

Future calls to other endpoints use oauth2-introspection to verify the bearer token via keycloak introspection

I almost have this working however, when I authenticate via Kong api gateway, it returns a bearer token, but this token fails introspection.

If I auth straight to keycloak, the bearer token works for introspection.

eg

Token from: http://kongapigateway.domain/getOAuthToken

• NOTE: We have not yet set up ssl on the kong api gateway

Returns:

I have the following array of objects; however this could be any unknown key/value and be infinitely nested, for now this is a testing sample:

I am looking into ant design calendar documentation.

I want to set events in specific days in current month. I am using this code which provide ant design documentation. But in their code created events were shown in every month.

How can I show for example in April only?

Because in my case I should receive from backend list of events in different years, months and dates and show in calendar.

Here is ant design documentation code

I have two tables Cars and Booking.

I want the following SQL query's equivalent in LINQ and I'm struggling with it

The SQL query is:

I'm having an issue when using the model states library from Spatie. I don't think it's a bug but it's not behaving as expected, although only in one of my controllers. We are using the older version of the code and, for now, cannot update to the latest version.

The problem is the "state" field is not being cast to a Spatie\ModelStates\State derived object and is returned as a string. So when I try to transition to a new state I get the exception: "Call to a member function transitionTo() on string".

However, there are other parts of the code where the same model is used and transitions work correctly, with the state being converted to the correct class. I just can't work out why this one controller is causing problems.

States derived from my own abstract class

I have the following situation. I am fetching data from the backend and the response is a bunch of objects. I want to iterate into them and in every iteration, I want to push them into my state.

here is how I am getting data from the backend: