I have a $scope variable scopeVar which contains a JSON Object. The JSON object has some complicated key names such as "onStatus[1]".
Is it possible to resolve such key names inside the view template so that I can use them like {{scopeVar.onStatus[1]}} or ng-bind="scopeVar.onStatus[1]" ?.
PS- I assume that using JSON keys in such a fashion is possible after reading this answer.However I am still skeptical regarding using symbols like '[' etc in key names as they may also be used to represent array elements.
If onStatus[1] is actually a property name and not the second element of the onStatus array you should use bracket notation to access the property:
{{ scopeVar['onStatus[1]'] }}
or as the expression in ngBind:
ng-bind="scopeVar['onStatus[1]']"
Use it like this in the view it works for me.
{{ scopeVar['onStatus[1]'] }}
Basically in the interpolation anything you put is treated as plain JS code so anything that works in the console of your browser will also work in the between the curly braces.
Related
I’m running my DAG with configuration JSON, which includes parameters which includes -, e.g. market-name
When I’m trying to read it using the following Jinja template:
path_prefix = f"market={{{{ params.market-name }}}}/configuration"
I’m getting the following error:
jinja2.exceptions.UndefinedError: 'dict object' has no attribute 'market'
It seems to me that Jinja doesn’t identify the full param name market-name but get the first part before the - which is market .
My questions:
Does Jinja supports having - in the middle of a param (e.g. market-name) or should I avoid it from the beginning and use market_name instead?
If Jinja doesn’t support having a - in the middle of a param
Should I escape the market-name ?
How should I escape it?
Should I use {{ params.market-name }} instead of {{{{ params.market-name }}}}?
This is not Airflow bug. I reported it in this issue and this is a problem coming from Jinja/Python.
I could have not find any official documentation in Jinja that explains it but several reports mention that Jinja uses python interpreter's identifiers (see this answer and this answer). It might be best to report this issue to Jinja add documentation about it.
You can just avoid using -.
I have a JSON field which starts with # (For example #odata.nextLink). How can I refer it in ADF. If I try activity('SomeActivity').output.#odata.nextLink, it doesn't work.
Note that the field #odata.nextLink also has a dot in it.
Use the square brackets syntax and remove the dot, eg two examples:
#activity('SomeActivity').output['#odata'].nextLink
#activity('Lookup1').output.firstRow['#test']
I'm not sure if this is documented anywhere, I just hammered it out.
I have the following text strings:
"Name":"John"}]
"Age":36
"Address":"ABC,PQR234[]/.,#ANYCHARACTERS"
"Gender":null
I need to get two groups (key value pair) from this such that the output would be only:
Key|Value
Name|John
Age|36
Address|ABC,PQR234[]/.,#ANYCHARACTERS
The requirement is to have a single regex to grab everything in the double quotes if the double quotes are present. If not, take the value without the quotes.
In our example above, 36 and null are the one without the quotes and they need to be captured as well.
I have tried a lot but have failed to do so.
UPDATE:
I don't know why I am getting down votes for this question. Yes this is JSON that I am trying to parse but there is a reason behind why I am doing this and not using any document parser.
I am supposed to use Talend for getting a dynamic JSON converted into Key Value Pair. What I mean by dynamic is the fields of the JSON can vary and hence I do not have a fixed schema and hence cannot use a document parser (which demands a fixed structure of JSON). I am devising a solution to get around this using Normalizer (on comma) and then extracting the key value pair which will be in double quotes using Regular Expressions. I tried many things on my own and since I am not an expert in Regular expressions, I have come here to get inputs.
If you know any better solution to this, I would be very happy to get your inputs.
How about this?
/"?([^\n"]*)"?:"?([^\n"]*)"?/
Explained in detail at:
https://regex101.com/r/UM0rl2/1/
I got an anonymous array which I want to deserialize, here the example of the first array object
[
{ "time":"08:55:54",
"date":"2016-05-27",
"timestamp":1464332154807,
"level":3,
"message":"registerResourcePath ('', '/sap/bc/ui5_ui5/ui2/ushell/resources/')",
"details":"","component":"sap.ui.ModuleSystem"},
{"time":"08:55:54","date":"2016-05-27","timestamp":1464332154808,"level":3,"message":"URL prefixes set to:","details":"","component":"sap.ui.ModuleSystem"},
{"time":"08:55:54","date":"2016-05-27","timestamp":1464332154808,"level":3,"message":" (default) : /sap/bc/ui5_ui5/ui2/ushell/resources/","details":"","component":"sap.ui.ModuleSystem"}
]
I tried deserializing using CL_TREX_JSON_SERIALIZER, but it is corrupt and does not work with my JSON, here is why
Then I tried /UI2/CL_JSON, but it needs a "structure" that perfectly fits the object given by the JSON Object. "Structure" means in my case an internal table of objects with the attributes time, date, timestamp, level, messageanddetails. And there was the problem: it does not properly handle references and uses class description to describe the field assigned to the field-symbol. Since I can not have a list of objects but only a list of references to objects that solution also doesn't works.
As a third attempt I tried with the CALL TRANSFORMATION as described by Horst Keller, but with this method I was not able to read in an anonymous array, and here is why
My major points:
I do not want to change the JSON, since that is what I get from sap.ui.log
I prefere to use built-in functionality and not a thirdparty framework
Your problem comes out not from the anonymity of array, but from the awkwardness of SAP JSON (De)serializer, which doesn't respect double quotes, which enclose JSON attributes. The issue is thoroughly described in this answer.
If you don't want to change your JSON on-the-fly, the only way you have is to change CL_TREX_JSON_DESERIALIZER class like this.
/UI5/CL_JSON_PARSER parses JSONs with unknown format.
Note that it's got "for internal use" written on it so many times that you probably should take it seriously and clone its code to fixate it.
I'm trying to pass a value via JSON that I am having trouble accessing. We have a data structure (that was obviously not built by me otherwise I would likely understand it) that looks something like this when sent to the browser:
{Foo(Bar(List(Baz(List(G3),w))),G3,None)}
This is sent via a JSON write method, but the originating Scala line looks like:
val hint = Some(s"{$question}") where $question is of type Foo.
I've tried using dot notation to access the list items in ways that I thought would work:
val hint = Some(s"{$question.Bar.Baz})"
val hint = Some(s"{$question.Bar(0).Baz(0)"})
It's the deepest G3 I wanted to strip out and send, but instead the JSON object comes through looking like:
{Foo(Bar(List(Baz(List(G3),w))),G3,None)}.Bar.Baz or
{Foo(Bar(List(Baz(List(G3),w))),G3,None)}.Bar(0).Baz(0)
I must be fundamentally missing something about the data structures involved here.
I think you're just using the wrong syntax. The $ needs to come before the {} and the {} is necessary for any expression more complicated than just a variable name:
s"${question.bar(0).baz(0)}"