Hi, I’m creating a php-based kitchen display using GraphQL. I’m having trouble retrieving product tags. It doesn’t seem to be accessible from the API. I’m so confused about product tags, custom tags and order tags. Here is my query:
{
getTickets(isClosed: false, orderBy: date) {
id
number
tags {
tag
tagName
}
states {
stateName
state
}
orders {
name
portion
quantity
tags {
tag
tagName
}
priceTag
states {
stateName
state
stateValue
}
}
entities {
type
name
}
note
}
}
And here is the result:
{
getTickets(isClosed: false, orderBy: date) {
id
number
tags {
tag
tagName
}
states {
stateName
state
}
orders {
name
portion
quantity
tags {
tag
tagName
}
priceTag
states {
stateName
state
stateValue
}
}
entities {
type
name
}
note
}
}
You can see that there are no tags. I have created product tags indicating the type of item is is so it can be routed to either the bartender or back kitchen but I don’t know how to include that data in my query. Is it possible to do a subquery on each order item against getProduct?
priceTag will return the product tag for the order (more than one product tag set for the item may return a comma delimited list - I’m not 100% sure, though)
This will return al products with related product tag(s) if set.
Hmm. It seems pretty limited. I went ahead and went through the painful process of installing sqlsrv driver for PHP. There seems to be no way to use getProducts with a range of productId’s. The only option is to do a getProduct query on each item in orders array. That would have to be done for each ticket displayed resulting in a ton of HTTP requests. Correct me if I’m wrong or is that the case?
Deserialise that into a class and either work with the class object, or fetch what data you need and create an associative array with productId as the key.
Not sure exactly the steps in PHP as the last time I did any meaningful work with PHP was over 10 years ago.
I left out id for the query, sorry. This should do:
Haha hey now. I’m too lazy to learn a new language lol. Anyway, after looking at the database, I see there’s no way to index custom tags in ‘MenuItems’ because they are stored as a JSON ojbect. So I’m using the ‘Tag’ field to separate into kitchen and bar items. Then I can just do SELECT * FROM MenuItems WHERE Tag='Kitchen'.
So there’s no way to limit the results this way with GraphQL? It seems like a waste of data transfer to request all products from the server. What if you had thousands of products?
It could be a hit to the db. But for a kitchen display, I would expect that data to be fetched once on startup and then maybe set some sort of refresh interval.
As for getting the custom tags here are some options:
Loop through the object and extract key/pair values for the tag
OK, I’ll give that a shot. I might just use SQL to read data but I’ll use GraphQL for mutations like creating tickets and such. does Samba cache DB data or is everything realtime?
Here is an example of JSON in SQL. I use JSON to parse out specific things from PaymentData field in the Payments table for our USA card integration. The last portion of this report tag is assigning fields to the parsed data for a report.
{REPORT SQL DETAILS:SELECT
jsonData.[pdauth_code]
,jsonData.[pdCardHolderName]
,jsonData.[pdCardBrand]
,[Amount]
,[Date]
FROM [Payments] p
CROSS APPLY OPENJSON(p.[PaymentData])
-- this WITH portion allows explicit definition of the schema JSON Keys for output
-- and gives references to the columns/fields above in the SELECT portion
-- we can also use these as filters in the WHERE clause below
WITH (
pdTransactionID varchar(1000) '$.TransactionID'
,pdauth_code varchar(1000) '$.auth_code'
,pdCardHolderName varchar(1000) '$.CardHolderName'
,pdCardBrand varchar(1000) '$.CardBrand'
) jsonData
WHERE 1=1
AND [PaymentData]!=''
AND DATE > '{Start}'
AND DATE < '{End}'
ORDER BY [Date]
:F.Date
,F.pdauth_code
,F.pdCardHolderName
,F.pdCardBrand
,F.Amount
}
