Скачать или смотреть How to Make a Date Picker Show Only Weekends for a Month Using Flask

Learn how to create a ticketing form in Flask that only displays `weekend dates` (Saturdays and Sundays) for a selected month. Simple solutions and code included!
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This video is based on the question https://stackoverflow.com/q/63189290/ asked by the user 'makarov19' ( https://stackoverflow.com/u/13610852/ ) and on the answer https://stackoverflow.com/a/63189600/ provided by the user 'Helios' ( https://stackoverflow.com/u/12955570/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Displaying Only Weekend Dates in Flask Ticketing Application

When building a ticketing application using Flask, one of the tasks you may encounter is filtering the dates to show only weekends (Saturdays and Sundays). This requirement can arise in scenarios where you want to allow users to pick dates for events that occur strictly on weekends.

In this post, we will walk through a simple solution that enables your application to show only weekend days for a specified month, leveraging the power of numpy.

The Problem: Weekend Selection for Dates

Imagine this scenario: You are developing a ticketing form in your application where users can choose dates based on the number of attendees. If today is July 31 and the users want to select dates for the next month, you want to ensure they can only view Saturdays and Sundays. This provides a simple and user-friendly experience while ensuring that your application adheres to specific needs.

The Solution: Using Numpy to Filter Dates

Using the numpy library, we can create a straightforward solution that generates only weekend dates within a specific range. Below are the steps to achieve this.

Step-by-Step Implementation

Here’s how to filter out the weekend dates:

Import the Numpy Library: First, you need to import the numpy library.

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Set the Current Date: Use np.datetime64 to set today’s date. This sets the anchor point for your calculations.

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Create a Range of Dates: Generate a range of dates for the next 31 days.

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Identify Weekend Days: Use numpy’s business day functionality to create a mask that identifies only the weekend days (Saturday and Sunday).

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Get the Weekend Dates: Finally, apply the mask to filter out and print only the weekend dates.

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Complete Code Example

Here is the complete code wrapped in one block for better clarity:

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Explanation of the Code

np.is_busday(): This function checks whether each date is a business day. By using the tilde operator (~), we invert the result to get the weekend days instead.

Date Range: The range is created for the next 31 days starting from the current date, allowing flexibility in selecting periods right from the user's input.

Conclusion

By implementing this straightforward solution leveraging numpy, you can easily filter and display weekends in your Flask application. Now, users will have a focused selection of dates to pick from when they want to attend weekend events, enhancing usability.

Feel free to integrate this code into your ticketing application, ensuring users have a smooth experience while navigating date selections!