I'm trying to make my first extension which requires me getting the id of my current tab. I've got the code below in a script that is set in the manifest as background. The issue is that it only returns undefined. Not sure what to do next. Thanks for any help!
function oneFunction() {
chrome.tabs.getCurrent(function(mytab){
console.log(mytab);
})
}
var t=setInterval(oneFunction,1000);
You should use
chrome.tabs.query({active: true, currentWindow:true}, function(tabs)
{
});
And also know that tabs is an array containing the tabs matching your query info. In this case the array will have length 1, so you must use it as tabs[0]
Related
I have an optional (not-required) Lookup column (Response) in my SharePoint List (Feedback). I am trying to use pnp js to reset the field to nothing.
const response = await this.list.items.getById(change.object.id).update({ResponseId: 0});
Looks like it works in the webview sharepoint. When getting the items, it returns a "bad" lookup with ID=0 and all other fields undefined. Same if I try using -1.
If the field is actually empty, it doesn't return the field at all. How can achieve the same using pnp? E.g. to clear the look up.
Any helps is much appreciated,
Dennis
#Dennis Kuhn,
Can you please set it null like below?
const i = await list.items.getById(3).update({
Title: "My New Title",
ResponseId: null
});
It works well on my SPO list, Could you please have a try?
BR
I'm trying to limit the amount of elements a user can add to an array field on one of my schemas. I'm currently adding the elements to the array using Schema.findOneAndUpdate(); with the $push operator.
The first thing I tried was the solution given by another answer here on StackOverflow, namely: https://stackoverflow.com/a/29418656/6502807
This solution adds a validate function to the fields in the schema definition. By setting runValidators to true, I did get the function to run with Schema.findOneAndUpdate(). It was at that moment, however, that I stumbled upon the next problem. At the end of the Validation chapter in the Mongoose docs it says:
Also, $push, $addToSet, $pull, and $pullAll validation does not run any validation on the array itself, only individual elements of the array.
So attempting to check for array length did not work when using $pull. It simply supplied the validation function with an empty array every time, regardless of its actual contents in the database.
Next thing I tried was to use a pre hook. This was without any success as well. For some reason it did not execute the hook, even with runValidators set to true. This is how I defined said hook:
Settings.pre('update', async function (next) {
if (this.messages.length > MAX_MESSAGES) {
throw new Error('Too many messages');
} else {
next();
}
});
EDIT: The reason the function did not fire was because I was using findOneAndUpdate instead of update this is fixed and the function now runs. The solution code above, however, does not work.
The schema with the array looks like this:
const Settings = new mongoose.Schema({
// A lot more fields not relevant to this question
messages: {
type: [{
type: String
}]
}
});
Another thing worth mentioning is that these update statements are used in conjunction with other options. I need the update statement to behave like an update or insert so my complete set of options looks like this:
{
runValidators: true,
setDefaultsOnInsert: true,
upsert: true,
new: true
}
When executing queries with the pre hook set like this, the array limit can be exceeded without any validation error being thrown.
At this point I'm wondering if there is any sensible way to do a max length check like this without having to do it myself outside of mongoose's abstraction layer.
I am using Mongoose 5.2.6 running on node v9.11.1 with MongoDB 4.0.0.
Any help is much appreciated!
Well if you are using latest version from mongodb and mongoose then you can use $expr operator
const udpate = await db.collection.update(
{ $expr: { $gt: [{"$size": "$messages" }, MAX_MESSAGES] }},
{ update }
)
You should be able to do that with the pre update hook. The thing is that that hook would not by default give you the update being mage so you can verify etc. You have to take it via this.getUpdate():
Settings.pre('update', async function (next) {
var preUpdate = this.getUpdate()
// now inside of the preUpdate you would have your update being made and should have the array in there on which you can check the length
});
To give you an idea in my test schema I had to do something like this on an update with a $set:
this.getUpdate().$set.books.length // gave me 2 which was correct etc
I also had no issues running and hitting the update hook at all. It looks super simple out of the mongoose docs:
AuthorSchema.pre('update', function(next) {
console.log('UPDATE hook fired!')
console.log(this.getUpdate())
next();
});
I have this:
exports.deleteSlide = function(data,callback){
customers.findOne(data.query,{'files.$':1},function(err,data2){
if(data2){
console.log(data2.files[0]);
data2.files[0].slides.splice((data.slide-1),1);
data2.files[0].markModified('slides');
data2.save(function(err,product,numberAffected){
if(numberAffected==1){
console.log("manifest saved");
var back={success:true};
console.log(product.files[0]);
callback(back);
return;
}
});
}
});
}
I get the "manifest saved" message and a callback with success being true.
When I do the console.log when I first find the data, and compare it with the console.log after I save the data, it looks like what I expect. I don't get any errors.
However, when I look at the database after running this code, it looks like nothing was ever changed. The element that I should have deleted, still appears?
What's wrong here?
EDIT:
For my query, I do {'name':'some string','files.name':'some string'}, and if the object is found, I get an array of files with one object in it.
I guess this is a subdoc.
I've looked around and it says the rules for saving subdocs are different than saving the entire collection, or rather, the subdocs are only applied when the root object is saved.
I've been going around this by grabbing the entire root object, then I do loops to find the actual subdoc I that I want, and after I manipulate that, I save the whole object.
Can I avoid doing this?
I'd probably just switch to using native drivers for this query as it is much simpler. (For that matter, I recently dropped mongoose on my primary project and am happy with the speed improvements.)
You can find documentation on getting access to the native collection elsewhere.
Following advice here:
https://stackoverflow.com/a/4588909/68567
customersNative.update(data.query, {$unset : {"slides.1" : 1 }}, function(err){
if(err) { return callback(err); }
customersNative.findAndModify(data.query, [],
{$pull: {'slides' : null } }, {safe: true, 'new' : true}, function(err, updated) {
//'updated' has new object
} );
});
I want to update one column of all rows collection by creating a concatnated string
My Schema has a property fileName and I would like construct a new property url.
Can I refernce the current row/record to build a query which would look something like this?
dbSchema.File.update({}, { $set: { url: '/view/images/'+ fileName}}, options, callback);
Obviously the above does not work because fileName is not in scope..
Whats the best way of achieving this?
You'll need to do this manually and update each document in JavaScript and resave the document.
db.file.find().forEach(function(doc) {
// make your needed updates
db.file.update({_id:doc._id}, { $set : { url: 'newPath/' + filename }});
});
While you could do it from Mongoose, there's not much reason to if you have access to the console.
Otherwise, you'll need to do the exchange on the fly as you encounter unchanged documents, by looking for an indicator that the data hasn't been fixed.
I'm learning to use with mongoose and node.js when editing to generate a content that gives me the error: 500 TypeError: Can not read property 'ObjectID' of undefined. Check whether the parameter that I send comes empty and is not.
Remove the option and gives me that error when saving the data did not find the method I use to save some registry update.
If I can help as I have code in https://github.com/boneyking/PruebaNode.git
First of all, please provide code or at least a link to the code. A link to your github repo is not cool !!!
Now back to the question... Add an id to your model and get it like other types:
var SUPER = mongoose.model('Producto',{
nombre: String,
descripcion: String,
precio: Number,
id: mongoose.Schema.Types.ObjectId
});
SUPER.editar = function(newData, callback){
SUPER.findOne({id: newData.id}, function(e,o){
o.nombre = newData.nombre;
o.descripcion = newData.descripcion;
o.precio = newData.precio;
SUPER.save(o);
callback(o);
});
}