Hello team, I have two fields one called startTime...

Payload-Bot

last month

4

• 

  tylandavis

  Payload Team

  last month

  Hey @alnasser.cs, you can do this by adding a custom

  validate

  function to your endTime field:

  
  

  {
    name: 'endTime',
    type: 'date',
    validate: (value, { data }) => {
      if (value <= data.startTime) {
        return "End time must be after start time";
      }
    }
  }

  
  

  
  

  this will check that

  endTime

  is greater than

  startTime

  , and return the error message if not.

• 

  alnasser.cs

  last month

  
  

  
  

  amazing. I'm also leaving this here.

  https://payloadcms.com/docs/fields/overview#validation

  for whoever coming to read this

  
  

  
  

  one more question, is it possible to check validation on effect. like as soon as the user pick a a date. I would like to check if it's correct before they go and click save?

• 

  tylandavis

  Payload Team

  last month

  Out of the box, I don't believe so. You could achieve this by adding in your own custom component, but that is more advanced.

  
  

  
  

  More on custom components here:

  https://payloadcms.com/docs/admin/components
• 

  alnasser.cs

  last month

  thank you. Maybe it's something I can help with when I figure out the framework

  
  

  
  

  validate: (value, { data, operation }) => {

  
  

  // if(operation == 'create' || operation !== 'update') {

  
  

  // console.log('operation not include ' + operation)

  
  

  // return true;

  
  

  // }

  
  

  data.timeSlots.forEach((timeSlot, i) => {

  
  

  console.log(timeSlot)

  
  

  if (new Date(timeSlot.endTime) <= new Date(timeSlot.startTime)) {

  
  

  console.log('through error')

  
  

  return

  Issue at Time Slot ${i+1}. End time must be after start time

  ;

  
  

  }

  
  

  });

  
  

  return true;

  
  

  },

  
  

  
  

  I wrote the validation function as described. I hit the if condition but return don't don't through error and the framework goes ahead and save it.

  
  

  
  

  error figured out. the return is inside the array.forEach() -.-