What I have tried till now
I am writing this because I have been trying with lot of things in Datatable for Meteor, I have use Reactive as well as non reactive packages for Data table including:
aldeed:tabular https://github.com/aldeed/meteor-tabular
ephemer:reactive-datatables https://github.com/ephemer/meteor-reactive-datatables
I have to use fetch and display records from multiple collections in a data table, I have also tried reywood:publish-composite in aldeed:tabular , it has an issue that we cannot search or sort data of child collection even it is displayed in the data table
Plus I have some custom requirements like inline edit ect (Tried Jeditable for Datatable).
Non Reactive Meteor Datatable Packages are causing issues related to reactivity and I have to refresh the page them to show them correctly which I don't want.
My Question
Does anyone knows how to do a Server Side Processing of Datatable with Meteor?
https://datatables.net/examples/server_side/
I am using iron router so in order to fetch some data and pass to ajax call do I need to create a server side route in iron router?
Anyone if you can give some hint, that would be very helpful, I will then try to write some server side code and try and If I am successful then I will post solution here.
Any other recommendations other than Datatable are also welcome if that are closer to the solution.
Thanks
In order to do a Server Side Processing of Datatable with Meteor, you can user sipmle bootstrap datatable and along with that you can create your own server side pagination system. You can use projection along with the {sort:sort, skip:skip, limit: perPage}
Related
I have implemented a server side table, with row grouping, using ag grid. The table makes a request to server for the time to load groups, but when you manually open a group it makes another request. There is a way to send the rows for each group in the first request?
In my application I need the ability to expand or collapse all groups manually, but it is a bit annoying to perform a request to server for each possible group.
If I try implementing a client side model and setting data rows like gridOptions.api.setRowData(data) and works, but if I change rowModelType: to 'serverSide' in gridOptions and configure serverSideDatasource sending the same data used in the client side model it doesn't work.
I have find a partial solution here.
Thank you for your help.
I am new to MongoDB. And I have the following issue on currently developing web application.
We have an application where we use mongoDB to store data.
And we have an API where we search for the document via text search.
As an example: if the user type “New York” then the request should send the all the available data in the collection to the keyword “New York". (Here we call the API for each letter typed.) We have nearly 200000 data in the DB. Once the user searches for a document then it returns nearly 4000 data for some keywords. We tried with limiting the data to 5 – so it returns the top 5 data, and not the other available data. And we tried without limiting data now it returns hundreds and thousands of data as I mentioned. And it causes the request to slow down.
At Frontend we Bind search results to a dropdown. (NextJs)
My question:
Is there an optimizing way to search a document?
Are there any suggestions of a suitable way that I can implement this requirement using mongoDB and net5.0?
Or any other Implementation methods regarding this requirement?
Following code segment shows the query to retrieve the data to the incomming keyword.
var hotels = await _hotelsCollection
.Find(Builders<HotelDocument>.Filter.Text(keyword))
.Project<HotelDocument>(hotelFields)
.ToListAsync();
var terminals = await _terminalsCollection
.Find(Builders<TerminalDocument>.Filter.Text(keyword))
.Project<TerminalDocument>(terminalFeilds)
.ToListAsync();
var destinations = await _destinationsCollection
.Find(Builders<DestinationDocument>.Filter.Text(keyword))
.Project<DestinationDocument>(destinationFields)
.ToListAsync();
So this is a classic "autocomplete" feature, there are some known best practices you should follow:
On the client side you should use a debounce feature, this is a most. there is no reason to execute a request for each letter. This is most critical for an autocomplete feature.
On the backend things can get a bit more complicated, naturally you want to be using a db that is suited for this task, specifically MongoDB have a service called Atlas search that is a lucene based text search engine.
This will get you autocomplete support out of the box, however if you don't want to make big changes to your infra here are some suggestions:
Make sure the field your searching on is indexed.
I see your executing 3 separate requests, consider using something like Task.WhenAll to execute all of them at once instead of 1 by 1, I am not sure how the client side is built but if all 3 entities are shown in the same list then ideally you merge the labels into 1 collection so you could paginate the search properly.
As mentioned in #2 you must add server side pagination, no search engine can exist without one. I can't give specifics on how you should implement it as you have 3 separate entities and this could potentially make pagination implementation harder, i'd consider wether or not you need all 3 of these in the same API route.
I'm using Algolia to power search in my app. I have an index called prod_COACHES in which I have some records with an object key called speciality1.
The data structure for speciality1 looks like this:
I have enabled speciality1.itemName as an Algolia 'facet' so that I can filter on it. All good so far and working nicely. Now, in my Algolia dashboard I can see a nice bit of UI that shows me every unique facet (in this case my specialisations) along with the number of records for each facet:
As it happens, I want to show exactly this information on my own UI in my app but I'm not sure how to get this data from Algolia in the most efficient way. I'm using the client side AlgoliaSearch Javascript SDK. How do I run a search to retrieve every unique speciality1.itemName and the number of records for each unique speciality1.itemName so I can build my own UI just like the above?
I have gone through the docs and followed the examples but my question is really about finding the most efficient way to do this from someone who really knows Algolia well, rather than hack my own solution together. Thanks!
It looks like you've enabled attributesForFaceting on the attribute speciality1.itemName. You can retrieve the facet values for the given attribue with the search parameter facets. The Algolia response will now contain a map with value:count. Here is an example with the JavaScript client:
import algoliasearch from 'algoliasearch';
const client = algoliasearch('XXX', 'XXX');
const index = client.initIndex('XXX');
index.search('', {
facets: ['speciality1.itemName']
}).then(result => {
console.log(result.facets)
});
If you want to easily build a search UI, you should take a look at the InstantSearch libraries. It's built on top of Algolia to ease the state/ui management for such UI. Many flavours are available e.g. Vanilla, React.
What is the best way to set up HTTP GET and POST methods with a kdb database?
I'd like to be able to extract the column names from a kdb table to create a simple form with fillable fields in the browser, allow users to input text into the fields, and then upsert and save that text to my table.
For example if I had the following table...
t:([employeeID:`$()]fName:`$(); mName:`$(); lName:`$())
So far I know how to open a port \p 9999 and then view that table in browser by connecting to the local host http://localhost:9999 and I know how to get only the column names:cols t.
Though I'm unsure how to build a useful REST API from this table that achieves the above objective, mainly updating the table with the inputted data. I'm aware of .Q.hg and .Q.hp from this blog post and the Kx reference. But there is little information and I'm still unsure how to get it to work for my particular purpose.
Depending upon your front-end(client) technology, you can either use HTTP request or WebSockets. Using HTTP request will require extra work to customize the output of the request as by default it returns HTML data.
If your client supports Websockets like Javascript then it would be easy to use it.
Basically, you need to do 2 things to setup WebSockets:
1) Start your KDB server and setup handler function for WebSocket request. Function for that is .z.ws. For eample simple function would be something like below:
q) .z.ws:{neg[.z.w].Q.s #[value;x;{`$ "'",x}]}
2) Setup message handler function on the client side, open websocket connection from the client and send a request to KDB server.
Details: https://code.kx.com/v2/wp/websockets/
Example: https://code.kx.com/v2/wp/websockets/#a-simpledemohtml
Right now I am working on a project to fetch data from a SharePoint list using SOAP API. I tried and successfully fetches the complete list, but now I want to fetch some specific data that is updated after a specific date.
Is this possible to fetch such data using SOAP query. I can see last update filed when I view single item at the bottom. Is this some how possible to use that filed?
Yes you can use the Web Services to do lot of things just like filtering a list result. I don't know which language you use, but with JavaScript you can look at these two frameworks that should help you:
http://aymkdn.github.io/SharepointPlus/ : easy way to create your queries (I created it)
http://spservices.codeplex.com/ : the most popular framework but less easy to use (it's my point of view)
You can also look at the documentation on MSDN (the param to use is query): http://msdn.microsoft.com/en-us/library/lists.lists.getlistitems.aspx
At last found the answer,
The last update date and time can be retrieved from the list column "Modified".
The soap response will have the value in the attribute "ows_Modified".
Muhammad Usman