I am using a post method which displays whether particular loan number is available or not. Here is my code
Now my question is i want to call another method which pre populates the values if the loan number exists. i.e. instead of printing "Loan Number is Available" i should call a function getDetails() which is in controller that populates the values. Please help me out from this.
You would use the exact same structure you use now:
$.post("/FnmaImport/CheckLoanNumber", { "LoanNumber": num },
function (data) {
if (data == "True") {
status.html("<font color=green>'<b> Loan Number " + num + "</b>' is available!</font>");
$.post("/FnmaImport/getDetails", { "LoanNumber": num },
function (loan) {
// display the values in "loan" in some page elements
});
} else {
status.html("<font color=red>'<b> Loan Number " + num + "</b>' is not available!</font>");
}
});
This would make a second POST request under the right conditions after the result of the first one. In that second response you would update your UI accordingly.
Of course, it might make more sense to return the data you want in the first request instead of making two requests in serial like this. Maybe just a single request to getDetails which either responds with the details you want or with a message indicating that the loan number wasn't found.
Related
I'm trying to embed a Zoho CRM by iframe into an application that knows only a phone number.
(Ramble: Originally I intended to call the Zoho api to lookup the Contact by phone number and redirect to or load the Contact's Zoho page - but the hosting app doesn't seem to support enough features to accommodate Zoho's OAuth2-only authentication - so I think I'm stuck with Zoho Deluge which I'm finding to be an ATROCIOUS language)
I'm hoping to GET navigate to this Zoho Function with the phone number as a parameter, have it find the unique match, and redirect to the customer details.
response = zoho.crm.searchRecords(
"Contacts",
"", // no criteria - I hope the later parameter
// normalizes better than this would?
1, // first page
2, // of two max results - just to verify uniqueness
"{ phone: '" + phoneNumber + "'}"); // Docs are terrible. Is this the format?
// I also tried "phone:equal:..."
//if (1 < response.size()) { // script errors show up on nonsense line
// return "[Ambiguous]"; // numbers, but this seems to work until later
//} // lines are included - then errors point here
return response; // Works, but useless string output
return response.firstName; // "Invalid collection object found" - but not expected to work
return response.get(0); // 'TEXT' can not be cast to '[KEY-VALUE, TEXT, LIST]' for the function 'get'
return response.get('firstName'); // 'TEXT' can not be cast to '[KEY-VALUE, TEXT, LIST]' for the function 'get'
return response.get(0).firstName; // Improper Statement Error might be due to missing ';' at end of the line or incomplete expression
// openUrl( <string>, <window_type> ); // hoping to get here
I've also tried variations on returning from inside a for each element loop, no luck.
I THINK I've successfully found the user by phone number because I think I indeed get one match, but I can't verify it and I don't know how to derive the url of the customer detail page for the openUrl() call. Do you know how to make progress on this?
The criteria is malformed, and function searchRecords returns a list of maps.
To access the first element of al list you must use .get(0) and get an element of a map .get("First_Name")
The fields are malformed, you must get the API name of the field form crm.zoho.com->setup->API->API names->Contacts
You can use info to debug the response (info response;)
Zoho CRM API Search records
toReturn = "";
response = zoho.crm.searchRecords("Contacts", "Phone:equals:" + phoneNumber, 1, 2);
if (1 < response.size()) {
toReturn = "[Ambiguous]";
} else if (0 == response.size()) {//error triggered if use get(0) of emty list
toReturn = "[None]";
}else {
toReturn = reponse.get(0).get("First_Name");
openUrl("https://crm.zoho.com/crm/org[yourOrgID]/tab/Contacts/" + reponse.get(0).get("id"), "new window");
}
return toReturn;
I have written a bit of code that allows a user to upvote / downvote recipes in a manner similar to Reddit.
Each individual vote is stored in a Firestore collection named votes, with a structure like this:
{username,recipeId,value} (where value is either -1 or 1)
The recipes are stored in the recipes collection, with a structure somewhat like this:
{title,username,ingredients,instructions,score}
Each time a user votes on a recipe, I need to record their vote in the votes collection, and update the score on the recipe. I want to do this as an atomic operation using a transaction, so there is no chance the two values can ever become out of sync.
Following is the code I have so far. I am using Angular 6, however I couldn't find any Typescript examples showing how to handle multiple gets() in a single transaction, so I ended up adapting some Promise-based JavaScript code that I found.
The code seems to work, but there is something happening that is concerning. When I click the upvote/downvote buttons in rapid succession, some console errors occasionally appear. These read POST https://firestore.googleapis.com/v1beta1/projects/myprojectname/databases/(default)/documents:commit 400 (). When I look at the actual response from the server, I see this:
{
"error": {
"code": 400,
"message": "the stored version (1534122723779132) does not match the required base version (0)",
"status": "FAILED_PRECONDITION"
}
}
Note that the errors do not appear when I click the buttons slowly.
Should I worry about this error, or is it just a normal result of the transaction retrying? As noted in the Firestore documentation, a "function calling a transaction (transaction function) might run more than once if a concurrent edit affects a document that the transaction reads."
Note that I have tried wrapping try/catch blocks around every single operation below, and there are no errors thrown. I removed them before posting for the sake of making the code easier to follow.
Very interested in hearing any suggestions for improving my code, regardless of whether they're related to the HTTP 400 error.
async vote(username, recipeId, direction) {
let value;
if ( direction == 'up' ) {
value = 1;
}
if ( direction == 'down' ) {
value = -1;
}
// assemble vote object to be recorded in votes collection
const voteObj: Vote = { username: username, recipeId: recipeId , value: value };
// get references to both vote and recipe documents
const voteDocRef = this.afs.doc(`votes/${username}_${recipeId}`).ref;
const recipeDocRef = this.afs.doc('recipes/' + recipeId).ref;
await this.afs.firestore.runTransaction( async t => {
const voteDoc = await t.get(voteDocRef);
const recipeDoc = await t.get(recipeDocRef);
const currentRecipeScore = await recipeDoc.get('score');
if (!voteDoc.exists) {
// This is a new vote, so add it to the votes collection
// and apply its value to the recipe's score
t.set(voteDocRef, voteObj);
t.update(recipeDocRef, { score: (currentRecipeScore + value) });
} else {
const voteData = voteDoc.data();
if ( voteData.value == value ) {
// existing vote is the same as the button that was pressed, so delete
// the vote document and revert the vote from the recipe's score
t.delete(voteDocRef);
t.update(recipeDocRef, { score: (currentRecipeScore - value) });
} else {
// existing vote is the opposite of the one pressed, so update the
// vote doc, then apply it to the recipe's score by doubling it.
// For example, if the current score is 1 and the user reverses their
// +1 vote by pressing -1, we apply -2 so the score will become -1.
t.set(voteDocRef, voteObj);
t.update(recipeDocRef, { score: (currentRecipeScore + (value*2))});
}
}
return Promise.resolve(true);
});
}
According to Firebase developer Nicolas Garnier, "What you are experiencing here is how Transactions work in Firestore: one of the transactions failed to write because the data has changed in the mean time, in this case Firestore re-runs the transaction again, until it succeeds. In the case of multiple Reviews being written at the same time some of them might need to be ran again after the first transaction because the data has changed. This is expected behavior and these errors should be taken more as warnings."
In other words, this is a normal result of the transaction retrying.
I used RxJS throttleTime to prevent the user from flooding the Firestore server with transactions by clicking the upvote/downvote buttons in rapid succession, and that greatly reduced the occurrences of this 400 error. In my app, there's no legitimate reason someone would need to clip upvote/downvote dozens of times per seconds. It's not a video game.
i'm just starting out with Dexie, and I seem to be coming unstuck.
I have a small database (less than 1000 rows), and i'm trying to delete each row one-by-one once I know that the row has been sent to a remote API.
I can also successfully save to the table (which is defined by an ID and a column storing a serialised object)
here's my code:
if (online) {
//we query the db and send each event
database.open()
let allEvents = database.events.toCollection()
let total = allEvents.count(function (count) {
console.log(count + ' events in total')
//a simple test to ensure we're seeing the right number of records
})
allEvents.each(function(thisEvent){
//push to remote API
console.log('deleting ' + thisEvent.id)
database.events.delete(thisEvent.id) //<= this doesn't seem to be working
})
}
All of this with the exception of the final delete statement.
Any ideas on how I should fix this? the important thing for me is to delete on a per-row basis.
thanks in advance!
I was experiencing the same problem, and the answer from Eugenia Pais wasn't working for me. So after some tests, I saw the trouble was with the type of the variable: I was using a string, but a number is needed, so this is how I solved it:
function removeRow (primaryKey) {
primaryKey = parseInt(primaryKey);
databaseName.tableName.where('primaryKey').equals(primaryKey).delete().then(function(deleteCount) {
console.log ("Deleted " + deleteCount + " rows");
}).catch(function(error) {
console.error ("Error: " + error);
});
So be aware you are using a number as argument.
The correct way to delete each row should be selecting the specific row and delete it:
database.tableName.where(indexId).equals(indexValue).delete();
The data type of the key is not a problem you could verify it in my example here: example
db.example.where('key').equals('one').delete();
Maybe you are trying to delete by a property that not is an index.
Google Apps Script supports Triggers, that pass Events to trigger functions. Unfortunately, the development environment will let you test functions with no parameter passing, so you cannot simulate an event that way. If you try, you get an error like:
ReferenceError: 'e' is not defined.
Or
TypeError: Cannot read property *...* from undefined
(where e is undefined)
One could treat the event like an optional parameter, and insert a default value into the trigger function using any of the techniques from Is there a better way to do optional function parameters in JavaScript?. But that introduces a risk that a lazy programmer (hands up if that's you!) will leave that code behind, with unintended side effects.
Surely there are better ways?
You can write a test function that passes a simulated event to your trigger function. Here's an example that tests an onEdit() trigger function. It passes an event object with all the information described for "Spreadsheet Edit Events" in Understanding Events.
To use it, set your breakpoint in your target onEdit function, select function test_onEdit and hit Debug.
/**
* Test function for onEdit. Passes an event object to simulate an edit to
* a cell in a spreadsheet.
*
* Check for updates: https://stackoverflow.com/a/16089067/1677912
*
* See https://developers.google.com/apps-script/guides/triggers/events#google_sheets_events
*/
function test_onEdit() {
onEdit({
user : Session.getActiveUser().getEmail(),
source : SpreadsheetApp.getActiveSpreadsheet(),
range : SpreadsheetApp.getActiveSpreadsheet().getActiveCell(),
value : SpreadsheetApp.getActiveSpreadsheet().getActiveCell().getValue(),
authMode : "LIMITED"
});
}
If you're curious, this was written to test the onEdit function for Google Spreadsheet conditional on three cells.
Here's a test function for Spreadsheet Form Submission events. It builds its simulated event by reading form submission data. This was originally written for Getting TypeError in onFormSubmit trigger?.
/**
* Test function for Spreadsheet Form Submit trigger functions.
* Loops through content of sheet, creating simulated Form Submit Events.
*
* Check for updates: https://stackoverflow.com/a/16089067/1677912
*
* See https://developers.google.com/apps-script/guides/triggers/events#google_sheets_events
*/
function test_onFormSubmit() {
var dataRange = SpreadsheetApp.getActiveSheet().getDataRange();
var data = dataRange.getValues();
var headers = data[0];
// Start at row 1, skipping headers in row 0
for (var row=1; row < data.length; row++) {
var e = {};
e.values = data[row].filter(Boolean); // filter: https://stackoverflow.com/a/19888749
e.range = dataRange.offset(row,0,1,data[0].length);
e.namedValues = {};
// Loop through headers to create namedValues object
// NOTE: all namedValues are arrays.
for (var col=0; col<headers.length; col++) {
e.namedValues[headers[col]] = [data[row][col]];
}
// Pass the simulated event to onFormSubmit
onFormSubmit(e);
}
}
Tips
When simulating events, take care to match the documented event objects as close as possible.
If you wish to validate the documentation, you can log the received event from your trigger function.
Logger.log( JSON.stringify( e , null, 2 ) );
In Spreadsheet form submission events:
all namedValues values are arrays.
Timestamps are Strings, and their format will be localized to the Form's locale. If read from a spreadsheet with default formatting*, they are Date objects. If your trigger function relies on the string format of the timestamp (which is a Bad Idea), take care to ensure you simulate the value appropriately.
If you've got columns in your spreadsheet that are not in your form, the technique in this script will simulate an "event" with those additional values included, which is not what you'll receive from a form submission.
As reported in Issue 4335, the values array skips over blank answers (in "new Forms" + "new Sheets"). The filter(Boolean) method is used to simulate this behavior.
*A cell formatted "plain text" will preserve the date as a string, and is not a Good Idea.
Update 2020-2021:
You don't need to use any kind of mocks events as suggested in the previous answers.
As said in the question, If you directly "run" the function in the script editor, Errors like
TypeError: Cannot read property ... from undefined
are thrown. These are not the real errors. This error is only because you ran the function without a event. If your function isn't behaving as expected, You need to figure out the actual error:
To test a trigger function,
Trigger the corresponding event manually: i.e., To test onEdit, edit a cell in sheet; To test onFormSubmit, submit a dummy form response; To test doGet, navigate your browser to the published webapp /exec url.
If there are any errors, it is logged to stackdriver. To view those logs,
In Script editor > Execution icon on the left bar(Legacy editor: View > Executions).
Alternatively, Click here > Click the project you're interested in > Click "Executions" icon on the left bar(the 4th one)
You'll find a list of executions in the executions page. Make sure to clear out any filters like "Ran as:Me" on the top left to show all executions. Click the execution you're interested in, it'll show the error that caused the trigger to fail in red.
Note: Sometimes, The logs are not visible due to bugs. This is true especially in case of webapp being run by anonymous users. In such cases, It is recommended to Switch Default Google cloud project to a standard Google cloud project and use View> Stackdriver logging directly. See here for more information.
For further debugging, You can use edit the code to add console.log(/*object you're interested in*/) after any line you're interested in to see details of that object. It is highly recommended that you stringify the object you're looking for: console.log(JSON.stringify(e)) as the log viewer has idiosyncrasies. After adding console.log(), repeat from Step 1. Repeat this cycle until you've narrowed down the problem.
Congrats! You've successfully figured out the problem and crossed the first obstacle.
2017 Update:
Debug the Event objects with Stackdriver Logging for Google Apps Script. From the menu bar in the script editor, goto:
View > Stackdriver Logging to view or stream the logs.
console.log() will write DEBUG level messages
Example onEdit():
function onEdit (e) {
var debug_e = {
authMode: e.authMode,
range: e.range.getA1Notation(),
source: e.source.getId(),
user: e.user,
value: e.value,
oldValue: e. oldValue
}
console.log({message: 'onEdit() Event Object', eventObject: debug_e});
}
Example onFormSubmit():
function onFormSubmit (e) {
var debug_e = {
authMode: e.authMode,
namedValues: e.namedValues,
range: e.range.getA1Notation(),
value: e.value
}
console.log({message: 'onFormSubmit() Event Object', eventObject: debug_e});
}
Example onChange():
function onChange (e) {
var debug_e = {
authMode: e.authMode,
changeType: changeType,
user: e.user
}
console.log({message: 'onChange() Event Object', eventObject: debug_e});
}
Then check the logs in the Stackdriver UI labeled as the message string to see the output
As an addition to the method mentioned above (Update 2020) in point 4.:
Here is a small routine which I use to trace triggered code and that has saved me a lot of time already. Also I have two windows open: One with the stackdriver (executions), and one with the code (which mostly resides in a library), so I can easily spot the culprit.
/**
*
* like Logger.log %s in text is replaced by subsequent (stringified) elements in array A
* #param {string | object} text %s in text is replaced by elements of A[], if text is not a string, it is stringified and A is ignored
* #param {object[]} A array of objects to insert in text, replaces %s
* #returns {string} text with objects from A inserted
*/
function Stringify(text, A) {
var i = 0 ;
return (typeof text == 'string') ?
text.replace(
/%s/g,
function(m) {
if( i >= A.length) return m ;
var a = A[i++] ;
return (typeof a == 'string') ? a : JSON.stringify(a) ;
} )
: (typeof text == 'object') ? JSON.stringify(text) : text ;
}
/* use Logger (or console) to display text and variables. */
function T(text) {
Logger.log.apply(Logger, arguments) ;
var Content = Stringify( text, Array.prototype.slice.call(arguments,1) ) ;
return Content ;
}
/**** EXAMPLE OF USE ***/
function onSubmitForm(e) {
T("responses:\n%s" , e.response.getItemResponses().map(r => r.getResponse()) ;
}
I have a grails app developed.
Herein, I have a page which accepts data and as per the data . goes to the list action, fires an sql, populates the data into reconciliationInstance object and displays it in list.gsp.
In my list.gsp, I have,
<g:sortableColumn property="access"
title="${message(code: 'reconciliationInstance.access.label', default: 'Access')}"
style="width: 10px" defaultOrder="desc"/>
However, when I click on the "Amount" heading, it takes me back to the list action again.
I have around 15 columns in the page and want to have sorting for all of them.
Am I missing something here??
To rectify this issue ,I wrote the below code.
Redirected to action sort. But theres something wrong here I believe.
def sort = {
if (!params.sort) params.sort = "title"
if (!params.order) params.order = "asc"
def reconciliationInstanceList = new ArrayList<Reconciliation>()
reconciliationInstanceList=session["reconciliationInstanceList"]
order(params.sort, params.order)
[reconciliationInstanceList: reconciliationInstanceList]
}
I have saved reconciliationInstanceList in a session.
Any Advice/Inputs?
My list action code is as below.
def list ={
//Taking parameters entered in the previous page
def odcNum=params.odcNum
def odcDate=params.odcDate
def date=null
def reconciliationInstance = new Reconciliation()
reconciliationInstance.properties=params
//Validation if all parameters have been entered by the user
if (reconciliationInstance.validate()) {
def results
SimpleDateFormat sdfSource = new SimpleDateFormat("dd-MMM-yyyy")
if(odcDate instanceof Date) {
date = sdfSource.format(odcDate);
}else{
date = odcDate
}
//Query to be fired. I have altered this query a bit. My actual query returns around 15 parameters
String odcData="select odc_access from odc_manager where odc_date=to_char('" + date + "') and odc_num like trim('" + odcNum + "')"
def reconciliationInstanceList = new ArrayList<Reconciliation>()
Sql sql = new Sql(dataSource)
results = sql.eachRow (odcData)
{
def reconciliation = new Reconciliation()
reconciliation.setAccess it.access
reconciliationInstanceList.add reconciliation
session["reconciliationInstanceList"]=reconciliationInstanceList
}
[reconciliationInstanceList: reconciliationInstanceList]
}
else {
render(view: "search", model: [reconciliationInstance: reconciliationInstance])
}
}
BTW I am a novice at grails. Therefore, you would find a bit of java in my code.
Somethings missing in my code? Therefore sort doesnt work. Inputs?
it should take you back to the list action, but the params passed to the action will let it know how to sort the resulting model.
the behavior is correct, I assume your code in the list action is not coded properly... You might want to include that code if you want additional guidance.
See sample list action
http://www.grails.org/GSP+Tag+-+sortableColumn
Found a work around for this. Passed the sort order (params.order) to the sql query and let the query do the sorting. Displayed the results on the gsp then.
If there's any other way, do let me know.