I am trying to implement PATCH - application/merge-patch+json for my application. I need to update nested dictionaries depending on the request that comes in.
Now, at the backend, this data is stored in DynamoDB. I can't figure out how to build the dynamoDB.updateItem payload dynamically. I.e. set_expression, name_attributes and attribute_values.
I tried following the answer here https://stackoverflow.com/a/71110148 but the while loop is misplaced in the code and I can't figure out what all needs to be nested under it.
Any help is appreciated. Thanks.
Related
I tried to perform this simple insertion to build up a sample record
I get this as a result:
I tried to search this issue and it was mentioned in a similar way here:
https://github.com/firebase/firebase-js-sdk/issues/193
but I still can not solve this even when building nested arrays indirectly.
If this is not supported, why am I getting the option to add array in the first place.
Any help appreciated.
Could someone please give some basic code on how to update items? I am using it an have an app that needs to add/delete values to list and map properties on table items without completely deleting the value. I also have a number property that I need to use as counter. In AWS documentation it simply states to re-save the entire object. I know it is possible to update items in this manner however I cannot seem to find any code. My app is in objective c however this seems like a problem for many people using many languages so this may be a great place to answer this for any and all languages. Thanks.
I would like to retrieve Data from a remote api (via HTTP.get) and pass it to the client. Currently I manually poll the data and implemented some template helpers, that pass the data to the views.
In case of a jquery datatable I use the jquery-datatables package and that needs a published collection.
Has anyone a hint for me how to implement this?
Just for others who might want to know how to solve this:
You'll find an example here: https://github.com/avital/publish-time/blob/master/publish-time.js
The code is shown in this 20 min video: https://www.youtube.com/watch?v=onCkNRE2q0c
With that you'll be able to quickly implement custom publish/subscribe without using MongoDB.
#richsilv: Thanks again for pointing me to the right stuff.
I'm using CoreData in my application for DML statements and everything is fine with it.
However I don't want use NSFetchedResultsController for simple queries like getting count of rows, etc.
I've decided to use fmdb, but don't know actual table names to write sql. Entity and table names don't match.
I've even looked inside .sqllite file with TextEdit but no hope :)
FMResultSet *rs = [db getSchema] doesn't return any rows
Maybe there's a better solution to my problem?
Thanks in advance
Core Data prefixes all its SQL names with Z_. Use the SQL command line tools to check out the your persistent store file to see what names it uses.
However, this is a very complicated and fragile solution. The Core Data schema is undocumented and changes without warning because Core Data does not support direct SQL access. You are likely to make error access the store file directly and your solution may break at random when the API is next updated.
The Core Data API provides the functionality you are seeking. IJust use a fetch request that fetches on a specific value using an NSExpressionDescription to perform a function. This allows you to get information like counts, minimums, maximums etc. You can create and use such fetches independent of a NSFetchedResultsController.
The Core Data API is very feature rich. If you find yourself looking outside the API for a data solution, chances are you've missed something in the API.
Background: I have a complex search form that stores the query and it's hash in a cache. Once the cache is set, I redirect to something like /searchresults/e6c86fadc7e4b7a2d068932efc9cc358 where that big long string on the end is the md5 hash of my query. I need to make a new argument for views to know what the hash is good for.
The reason for all this hastle is because my original search form is way to complex and has way to many arguments to consider putting them all into the path and expecting to do the filtering with the normal views arguments.
Now for my question. I have been reading views 2 documentation but not figuring out how to accomplish this custom argument. It doesn't seem to me like this should be as hard as it seems to me like it must be. Leaving aside any knowledge of the veiws api, it would seem that all I need is a callback function that will take the argument from the path as it's only argument and return a list of node id's to filter to.
Can anyone point me to a solution or give me some example code?
Thanks for your help! You guys are great.
PS. I am pretty sure that my design is the best I can come up with, lets don't get off my question and into cross checking my design logic if we can help it.
It's not as easy as you would like to make it.
In views, arguments are used to return objects, fx user, node, term, custom object. So you could make some custom code, to get the "query object". That would only be first step. You then need to get the info from the query object. You could either try making a custom relationship bond with the nodes or build your own filter to make the SQL needed. This can quickly become a confusing time sink.
Instead, I would suggest that you use hook_views_query_alter, which will allow you to alter the query. Since you already have the SQL, it's just a matter of checking for the hash, and if it's there, alter the query. Should be a pretty simple thing to do. Only thing that is a bit tricky, is that you have to make the query with the query object that views uses, but it's not that hard to figure out.