Question

I’m trying to write a simple script for a Google Docs Spreadsheet. The two links below are a screenshot of the sheets I’m writing the script for.

https://i.stack.imgur.com/uGik7.png

https://i.stack.imgur.com/AbKnQ.png

On Sheet Purchase orders, If column e == “stock” then I need it to find the part number and adjust the quantity in sheet “Inventory”. Bellow is a beginning to what I am trying to do. Can anyone give me a hand?

function updateInventoryFromPurchaseOrders() {
  var purchaseOrders = {}; // A mapping of partNumber => quantity.
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getSheetByName('Purchase Orders');
  if (sheet) {
    // For each row, if column "E" == "stock" then set partNumber, quantity.
    purchaseOrders[partNumber] = quantity;
  }
  // Now purchaseOrders should look like {'SL249':5, 'ML50':1, 'MWF':1}

  sheet = ss.getSheetByName('Inventory');
  if (sheet) {
    // For each row, set quantity, partNumber.
    var purchased = purchaseOrders[partNumber];
    // Set column "A" value = quantity + purchased
  }
}

Thanks for the help.

Answer 1

javascript does not feature foreach – there are possible way to get around this, including implementing the mechanism yourself.

If it is a onetime Fix and you will migrate to some other language soon – i would suggest the following:

for( var CurrentRow=0; CurrentRow < DetermineMaxRows(); CurrentRow++ ) {
    if(isColumnEEqualStock()){
        //Things you want to do
    }
}

Something simmilar for iterating through Rows and Columns…

If you want to implement your own foreach take a look at this site.

If you plan to expand your Javascript efforts consider link text.

Otherwise think about making appletts in Java and implementing them instead of a script.