问题
WARNING: I'm not a programmer by trade.
Ok. Got the disclaimer out of the way. So this might not be the best way to do this but here is the scenario. I have a dropdown that gets populated via a Google Sheet. The user chooses a selection from the list but this dropdown does not have all of the possible values it could have. There will likely be a time when the user needs a new value added. While I could manually update the spreadsheet as new values are requested that introduces an element of human availability to get this done and I'm not always available.
What I would prefer is a self-serve model. I want to supply the user with a text field where they can enter the new value and submit it to the Google Sheet. Then I would like the dropdown to be updated with the new value for the user to choose.
Now, I realize that I could just submit the value in the new field to the Google Sheet but that will require building a condition to see whether it is the dropdown or text field that has a value in it. I'd also need some type of error handling in case both the dropdown and text field have values. That seems like a bigger headache to program then my ask.
I'm not sure what code you would need to see to help make this work but here is what I think might help.
doGet function
function doGet(e){
var ss = SpreadsheetApp.openById(ssId)
var ws = ss.getSheetByName("External");
var range = ws.getRange("A2:D2");
var valuesArray = [];
for (var i = 1; i <= range.getLastColumn(); i++){
var lastRowInColumn = range.getCell(1, i).getNextDataCell(SpreadsheetApp.Direction.DOWN).getRow();
var list = ws.getRange(2,i,lastRowInColumn-1,1).getValues();
valuesArray.push(list);
}
var userEmail = Session.getActiveUser().getEmail();
var sourceListArray = valuesArray[2].map(function(r){ return '<option>' + r[0] + '</option>'; }).join('');
var productListArray = valuesArray[3].map(function(r){ return '<option>' + r[0] + '</option>'; }).join('');
var tmp = HtmlService.createTemplateFromFile("config");
tmp.productList = productListArray;
return tmp.evaluate();
}
Add to Google Sheet
function userClicked(tagInfo){
var ss = SpreadsheetApp.openById(ssId)
var ws = ss.getSheetByName("Data");
ws.appendRow([tagInfo.email, tagInfo.source, tagInfo.product, new Date()]);
}
Add record
function addRecord(){
var tagInfo = {};
tagInfo.product = document.getElementById("product").value;
google.script.run.userClicked(tagInfo);
var myApp = document.getElementById("source");
myApp.selectedIndex = 0;
M.FormSelect.init(myApp);
var myApp = document.getElementById("brand");
myApp.selectedIndex = 0;
M.FormSelect.init(myApp);
var myApp = document.getElementById("product");
myApp.selectedIndex = 0;
M.FormSelect.init(myApp);
}
How dropdowns are populated in the HTML.
<div class="input-field col s3">
<select id="product" onchange="buildURL()">
<option disabled selected value="">Choose a product</option>
<?!= productList; ?>
</select>
<label>Product</label>
</div>
Need to see anything else? I think it might be relatively easy to add the new value to the column but the tricky part seems to be the update of only that one dropdown and not the entire app. To me it seems like I want to trigger the doGet() function again but only for that specific dropdown. Thoughts?
UPDATE: current code to add new value to dropdown
function addProduct() {
let newProd = document.getElementById("newProduct").value;
google.script.run.withSuccessHandler(updateProductDropdown).addNewProduct(newProd);
document.getElementById("newProduct").value = "";
}
function updateProductDropdown(newProd){
var newOption = document.createElement('option');
newOption.value = newProd;
newOption.text = newProd;
document.getElementById('product').add(newOption);
}
UPDATE2: App Scripts function to add new value to column in spreadsheet
function addNewProduct(newProd){
var columnLetterToGet, columnNumberToGet, direction, lastRow, lastRowInThisColWithData, rng, rowToSet, startOfSearch, valuesToSet;
var ss = SpreadsheetApp.openById(ssId);
var ws = ss.getSheetByName("List Source - External");
lastRow = ws.getLastRow();
//Logger.log('lastRow: ' + lastRow)
columnNumberToGet = 9;//Edit this and enter the column number
columnLetterToGet = "I";//Edit this and enter the column letter to get
startOfSearch = columnLetterToGet + (lastRow).toString();//Edit and replace with column letter to get
//Logger.log('startOfSearch: ' + startOfSearch)
rng = ws.getRange(startOfSearch);
direction = rng.getNextDataCell(SpreadsheetApp.Direction.UP);//This starts
//the search at the bottom of the sheet and goes up until it finds the
//first cell with a value in it
//Logger.log('Last Cell: ' + direction.getA1Notation())
lastRowInThisColWithData = direction.getRow();
//Logger.log('lastRowInThisColWithData: ' + lastRowInThisColWithData)
rowToSet = lastRowInThisColWithData + 1;
valuesToSet = [newProd];
ws.getRange(rowToSet, 9).setValues([valuesToSet]);
return newProd;
}
SOLUTION to Update Materialize Dropdown
function updateProductDropdown(newProd){
newProdOption = document.getElementById('product');
newProdOption.innerHTML += '<option>' + newProd + '</option>';
var elems = document.querySelectorAll('select');
var instances = M.FormSelect.init(elems);
}
回答1:
You can specify a client side callback function if you use google.script.run withSuccessHandler(callback) where your callback could update the list only and not the whole site.
Example:
google.script.run.withSuccessHandler(updateDropdownWidget).updateDropdownList(text_from_input)
Where updateDrownList(text_from_input) is a function in your Apps Script that adds text to the sheet using SpreadsheetApp for example, and returns the "text" to the callback function: updateDropdownWidget(text) which adds a new list item to the HTML drop-down list in your front end.
index.html:
<form>
<label for="newOption">New option for the dropdown:</label>
<input type="text" id="nopt" name="newOption">
<input type="button" value="Submit"
onclick="google.script.run.withSuccessHandler(updateDropdownWidget)
.updateDropdownList(document.getElementById('nopt').value)">
</form>
<label for="cars">Choose a car:</label>
<select name="cars" id="cars">
<?!= values; ?>
</select>
<script>
function updateDropdownWidget(text){
var option = document.createElement('option');
option.value = text;
option.text = text;
document.getElementById('cars').add(option);
}
</script>
Code.gs:
function doGet(e){
var ss = SpreadsheetApp.getActiveSheet();
var lastRow = ss.getDataRange().getLastRow();
var values = ss.getRange(1,1,lastRow,1).getValues();
var valuesArray = [];
for (var i = 0; i < values.length; i++){
valuesArray.push('<option value="'+values[i]+'">' +values[i]+ '</option>');
}
var tmp = HtmlService.createTemplateFromFile("index");
tmp.values = valuesArray;
return tmp.evaluate();
}
function updateDropdownList(text_from_input){
// Log the user input to the console
console.log(text_from_input);
// Write it to the sheet below the rest of the options
var sheet = SpreadsheetApp.getActiveSheet();
var lastRow = sheet.getDataRange().getLastRow();
sheet.getRange(lastRow+1,1).setValue(text_from_input);
// Return the value to the callback
return text_from_input;
}
回答2:
Here's an example:
In my Stack Over Flow spreadsheet I four buttons which can be used to run any function in 3 script files and every time I load the sidebar it reads the functions in those script files and returns them to each of the select boxes next to each button so that I test functions that I write for SO with a single click and I can select any function for any button. Here's the Javascript:
$(function(){//JQuery readystate function
google.script.run
.withSuccessHandler(function(vA){
let idA=["func1","func2","func3","func4"];
idA.forEach(function(id){
updateSelect(vA,id);
});
})
.getProjectFunctionNames();
})
Here is GS:
function getProjectFunctionNames() {
const vfilesA=["ag1","ag2","ag3"];
const scriptId="script id";
const url = "https://script.googleapis.com/v1/projects/" + scriptId + "/content?fields=files(functionSet%2Cname)";
const options = {"method":"get","headers": {"Authorization": "Bearer " + ScriptApp.getOAuthToken()}};
const res = UrlFetchApp.fetch(url, options);
let html=res.getContentText();
//SpreadsheetApp.getUi().showModelessDialog(HtmlService.createHtmlOutput(html), "Project Functions");
let data=JSON.parse(res.getContentText());
let funcList=[];
let files=data.files;
files.forEach(function(Obj){
if(vfilesA.indexOf(Obj.name)!=-1) {
if(Obj.functionSet.values) {
Obj.functionSet.values.forEach(function(fObj){
funcList.push(fObj.name);
});
}
}
});
//SpreadsheetApp.getUi().showModelessDialog(HtmlService.createHtmlOutput(funcList.join(', ')), "Project Functions");
return funcList;//returns to withSuccessHandler
}
Image:
Animation:
来源：https://stackoverflow.com/questions/62325897/how-do-i-add-a-new-value-to-a-google-sheet-from-a-text-field-in-a-web-app-and-th