Check for Uniqueness in Multiple Columns in Django

My User Models Contains columns (email and alternate_email). Note: Both are unique fields Requirement is For any user email and alternate_email should be unique, i.e. Let Say UserA registered with (email = [email protected] and alternate_email = [email protected]). Now it should not allow any other user to have (email = [email protected] and alternate_email = [email protected]). Or…

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Declare types for module

I have three files: //some-class.js class SomeClass {} module.exports = SomeClass //helpers.js const someFunc = () => {} module.exports = {someFunc} //index.js const SomeClass = require(“./src/some-class”) const helpers = require(“./src/helpers”) module.exports = {SomeClass, helpers} I need to describe types for them, so I`ve created index.d.ts: declare module someModule { class SomeClass {} } export =…

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How to resolve this error in solidity “The constructor should be payable if you send value.”?

In this solidity code the finalizeRequest() is giving a run-time error. Here is the error : Campaign.finalizeRequest(uint256) 0x692…77b3a transact to Campaign.finalizeRequest errored: VM error: revert. revert The transaction has been reverted to the initial state. Note: The constructor should be payable if you send value. Debug the transaction to get more information. Here is the…

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alacritty receives strange keystrokes when switching workspace

My setup: Ubuntu 19.10, up to date, quite fresh install without too many tweaks installed Alacritty via sudo add-apt-repository ppa:mmstick76/alacritty; sudo apt update; sudo apt install alacritty shell if fish, installed via sudo apt install fish When I switch workspace so that I end up on Alacritty, my shell prompt seems to receive weird keystrokes:…

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