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August 17, 2020 04:44
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A script for validating data values in a Google Spreadsheet. When retrieving a sheet as JSON, its best that the sheet contains no empty values. Thus this script highlights empty cells, and provides an error message with those cells locations.
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| function checkForEmptyCells() { | |
| var ss=SpreadsheetApp.getActiveSpreadsheet(); | |
| var sheet=ss.getSheets()[1]; | |
| var selection=sheet.getDataRange(); | |
| var columns=selection.getNumColumns(); | |
| var rows=selection.getNumRows(); | |
| var emptyCells = []; | |
| var headerCells = sheet.getRange(2, 1,1, columns) | |
| var debugRange= sheet.getRange(1,1); | |
| var dataCells = sheet.getRange(3, 2, rows-2, columns-1) | |
| function debug(){ | |
| debugRange.setValue('') | |
| debugRange.setValue('DATA VALIDATION COMPLETE' + '\n') | |
| var errorString = '' | |
| if (emptyCells.length > 0){ | |
| var emptyErrorMessage = debugRange.getValue() + '⚠ERROR: No Empty Cells Allowed, If Cell Empty Fill with NA: ' + emptyCells.join() | |
| errorString = emptyErrorMessage | |
| debugRange.setBackground('red') | |
| } else { | |
| errorString = debugRange.getValue() + '✓No Errors Found' | |
| debugRange.setBackgroundRGB(191, 255, 181) | |
| } | |
| debugRange.setValue(errorString); | |
| } | |
| //Perform Function f on Cell in Range | |
| function forEachRangeCell(range, f) { | |
| const numRows = range.getNumRows(); | |
| const numCols = range.getNumColumns(); | |
| for (let i = 1; i <= numCols; i++) { | |
| for (let j = 1; j <= numRows; j++) { | |
| const cell = range.getCell(j, i) | |
| f(cell) | |
| } | |
| } | |
| } | |
| //Check values of data Cells, change color correspondingly, push addresses of error cells to list | |
| forEachRangeCell(dataCells, (cell)=>{ | |
| var cellValue = cell.getValue(); | |
| if (cellValue === 'NA'){ | |
| cell.setBackground('yellow'); | |
| } else if (cell.isBlank()) { | |
| emptyCellLocation = cell.getA1Notation() | |
| emptyCells.push(emptyCellLocation) | |
| cell.setBackground("red") | |
| } else { | |
| cell.setBackgroundRGB(191, 255, 181) | |
| } | |
| }) | |
| debug() | |
| } |
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