double entry on button

Question

I am currently facing issue, the user clicks a time on the Button ,then the entry get inserted two times in database. How can I solve this

Vishal Joshi · Answer

Hello There can be several possibilities to get double entries in the database. please check the below points. Button Click Event: add multiple click prevent code. Add Primary key constraint: to prevent duplicate entries in the database you can add primary or unique key constraints. Check duplicate code for insert data in the database from different places. If this is the case, you should check if an entry already exists then only update the existing otherwise add a new entry. Thanks Vishal Joshi

Ishika Tiwari · Answer

it's important to ensure that the button remains disabled only for the duration necessary to prevent double submissions Submit // JavaScript code document.getElementById('submitButton').addEventListener('click', function(event) { var submitButton = event.target; // Disable the button to prevent double submission submitButton.disabled = true; // if you want enable again setTimeout(function() { // enable the button after a delay submitButton.disabled = false; console.log('Button enabled'); }, 2000); // 2 seconds delay });

Jayraj Chhaya · Answer

If you call your API using ajax then add the below the line. $("button").click(function(e) { e.preventDefault(); // this line is help and call this method only one time. });

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