My fetched rows from rethinkdb cluster include date objects with timezones.
Here's an example of one:
ipython> dt
datetime.datetime(2015, 12, 18, 0, 22, 4, 644000, tzinfo=<rethinkdb.ast.RqlTzinfo object at 0x7f072c5d6250>)
I'm trying to stringify them into a certain format:
dt.strftime("%d-%m-%Y %H:%M:%S (%Z)")
and it leads to
*** TypeError: tzinfo.tzname() must return None or a string, not 'unicode'
How can I overcome this?
If you look at the source code for RqlTzinfo.tzname(), you can see that it simply returns its offsetstr attribute. Since that attribute is never modified or converted anywhere in that class and the class's behavior does not depend on it being either a str or unicode, the following should suffice:
dt.tzinfo.offsetstr = str(dt.tzinfo.offsetstr)
Related
I've seen the JSON array questions here and I'm still a little lost, so could use some extra help.
Here's the setup:
My Flow calls a sproc on my DB and that sproc returns this JSON:
{
"ResultSets": {
"Table1": [
{
"OrderID": 9518338,
"BasketID": 9518338,
"RefID": 65178176,
"SiteConfigID": 237
}
]
},
"OutputParameters": {}
}
Then I use a PARSE JSON action to get what looks like the same result, but now I'm told it's parsed and I can call variables.
Issue is when I try to call just, say, SiteConfigID, I get "The output you selected is inside a collection and needs to be looped over to be accessed. This action cannot be inside a foreach."
After some research, I know what's going on here. Table1 is an Array, and I need to tell PowerAutomate to just grab the first record of that array so it knows it's working with just a record instead of a full array. Fair enough. So I spin up a "Return Values to Virtual Power Agents" action just to see my output. I know I'm supposed to use a 'first' expression or a 'get [0] from array expression here, but I can't seem to make them work. Below are what I've tried and the errors I get:
Tried:
first(body('Parse-Sproc')?['Table1/SiteConfigID'])
Got: InvalidTemplate. Unable to process template language expressions in action 'Return_value(s)_to_Power_Virtual_Agents' inputs at line '0' and column '0': 'The template language function 'first' expects its parameter be an array or a string. The provided value is of type 'Null'. Please see https://aka.ms/logicexpressions#first for usage details.'.
Also Tried:
body('Parse-Sproc')?['Table1/SiteconfigID']
which just returns a null valued variable
Finally I tried
outputs('Parse-Sproc')?['Table1']?['value'][0]?['SiteConfigID']
Which STILL gives me a null-valued variable. It's the worst.
In that last expression, I also switched the variable type in the return to pva action to a string instead of a number, no dice.
Also, changed 'outputs' in that expression for 'body' .. also no dice
Here is a screenie of the setup:
To be clear: the end result i'm looking for is for the system to just return "SiteConfigID" as a string or an int so that I can pipe that into a virtual agent.
I believe this is what you need as an expression ...
body('Parse-Sproc')?['ResultSets']['Table1'][0]?['SiteConfigID']
You can see I'm just traversing down to the object and through the array to get the value.
Naturally, I don't have your exact flow but if I use your JSON and load it up into Parse JSON step to get the schema, I am able to get the result. I do get a different schema to you though so will be interesting to see if it directly translates.
I have the following datetime helper method that converts a UTC-zoned Java 8 Date into a datetime string:
public static String dateTimeString(Date date) {
return date.toInstant().atZone(ZoneId.of("UTC")).toLocalDateTime().toString();
}
The desired result is to always have the resultant String be formatted as:
YYYY-MM-dd'T'HH:mm:ss'Z'
Problem is, Java 8 LocalTime#toString() intentionally strips off time components that are zero. So for instance if I have a Date instance that represents June 8, 2018 at 12:35:00 UTC. Then the output of this method above is: 2018-06-08'T'12:35'Z'. Whereas I want it to contain any zeroed-out second/minute/hour components (e.g. 2018-06-08'T'12:35:00'Z').
Any ideas?
private static DateTimeFormatter formatter = DateTimeFormatter.ofPattern("uuuu-MM-dd'T'HH:mm:ssX");
public static String dateTimeString(Date date) {
return date.toInstant().atOffset(ZoneOffset.UTC).format(formatter);
}
Just use a fixed format pattern string to get your desired format. Let’s try it:
System.out.println(dateTimeString(new Date(0)));
System.out.println(dateTimeString(new Date(1_524_560_255_555L)));
This prints:
1970-01-01T00:00:00Z
2018-04-24T08:57:35Z
In the first example hours, minutes and seconds are printed even if they are 0.
In the second example milliseoncds are omitted even when they are non-zero (you see that the milliseconds value I specified ends in 555).
All of this said, the output conforms to the ISO 8601 format no matter if you have 2018-06-08T12:35Z, 2018-06-08T12:35:00Z or even 2018-06-08T12:35:00.000000000Z. So you may want to check once more whether leaving out the second works for your purpose before you take the trouble of defining your own formatter.
Link: Wikipedia article: ISO 8601
I don't see why you portray the default output to have its letters enclosed in single quotes when Java's actual output instead looks like 2018-06-08T12:35Z, but anyway, here's the code that produces it as desired, with no omissions:
final LocalDateTime ldt = LocalDateTime.of(2018, 6, 8, 12, 35, 0);
final ZonedDateTime zdt = ZonedDateTime.of(ldt, ZoneId.of("Z"));
final DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy-MM-dd'''T'''HH:mm:ss''X''", Locale.US);
System.err.println(dtf.format(zdt));
Output:
2018-06-08'T'12:35:00'Z'
Personally, I'd probably prefer a format like this, containing the millis, giving time zone information not requiring additional knowledge from the user, and not having imho superfluous characters:
FORMAT: "yyyy-MM-dd HH:mm:ss'.'SSS Z"
OUTPUT: 2018-06-08 12:35:12.345 +0200
It appears that there is no out of the box solution. The simplest way would be to write your own class that extends DateTimeFormatter and override method public String format(TemporalAccessor temporal) where you would call the original method and then if needed modify the output String. See the flags 'Z' for formatter. If that flag is present then you will need to modify the original output.
I have a JSON object such as:
"c": {
"10-20": 9.0,
"0-10": 8.5,
"30-end": 5.085714285714286,
"20-30": 10.3
}
When I convert that JSON to a serialized object using:
JSON.parse(response.body, object_class: OpenStruct)
It gives me:
<OpenStruct 10-20=0, 0-10=8.5, 30-end=5.085714285714286, 20-30=10.3>
Naturally that can't be accessed with c.10-20 as I don't believe hyphens are valid class variable names. So, how do you access these values?
You can use square brackets like you would with a hash:
obj["10-20"]
#=> 0
Of course, if most of the keys are not valid method names anyway, then you might as well just use a hash and not bother with an OpenStruct.
Related documentation: OpenStruct#[]
I am having difficulty getting to specific values when I parse a JSON file in Ruby. My JSON is based off of this link https://www.mcdonalds.com/services/mcd/us/restaurantLocator?latitude=40.7217861&longitude=-74.00944709999999&radius=8045&maxResults=100&country=us&language=en-us
No matter what I try I cannot pull the values I want, which is the "addressLine1" field. I get the following error:
`[]': no implicit conversion of String into Integer (TypeError)
Code
require 'json'
file = File.read('MCD.json')
data_hash = JSON.parse(file)
print data_hash.keys
print "\n"
print data_hash['features']['addressLine1']
data_hash['features'] is an array. Depending on what do you actually need, you might either iterate over it, or call:
data_hash['features'].first['properties']['addressLine1']
Note 'properties' there, since addressLine1 is not a direct descendant of 'features' elements.
I have a row that looks like the following (in a .xls):
bob abc 6/14/14 8:23
I want to return the date and time as: 61414823
I tried to get started with:
def self.regex_date
_test_column = #sheet.row(1)[2].date
...
end
Which I read about here: How to retrieve date properly using spreadsheet gem in ruby
But I'm getting the following error, before I can get to the regex part:
in `regex_date': undefined method `date' for #<DateTime:0x007f94e111b700> (NoMethodError)
It means that #sheet.row(1)[2] is a DateTime object. It doesn't have .date method. Instead, you can use .to_date.
But I don't understand why do you want to convert it to Date. What you want is to use .strftime like this:
#sheet.row(1)[2].strftime("%-m%-d%y%-k%M")
DateTime.new(2014, 6, 14, 8, 23).strftime("%-m%-d%y%-k%M") # => "61414823"