The AQL query editor in the web interface expects JSON data for the values
entered for bind parameters.
It will JSON-parse each entered value and if that parsing fails (because
the value is no valid JSON), it will fall to back to interpreting the value
as a string.
The value
[ "name1", "name2" ]
is valid JSON and will be interpreted as an array with two strings.
The value
[ 'name1', 'name2' ]
is not valid JSON. The editor will therefore interpret it as a string, i.e.
"[ 'name1', 'name2' ]"
Regarding the python driver:
All clients/drivers connect to ArangoDB via the HTTP interface, which
expects JSON input. I would expect all drivers to just JSON-stringify data
when sent to ArangoDB.
So whatever string representation a client-language has (double quotes,
single quotes etc.), the language's JSON-stringification should make it
work.
For example, in Python:
>>> import json
>>> print json.dumps("foo")
"foo"
>>> print json.dumps('bar')
"bar"
or in JavaScript:
var a = "foo"; // double quotes
var b = 'bar'; // single quotes
JSON.stringify(a); // "foo"
JSON.stringify(b); // "bar"
or in PHP:
$a = "foo"; // double quotes
$b = 'bar'; // double quotes
json_encode($a); // "foo"
json_encode($b); // "bar"
That said, I have no insights into what the Python-Mango driver does, but I
would expect it to work with both modes.
Best regards
Jan
Am Donnerstag, 5. Januar 2017 00:33:44 UTC+1 schrieb Blue Light:
>
> Hi there
>
> Not sure if I'm doing something wrong, but I have a query along the lines
> of:
> FOR d IN collection
> FILTER @names_to_lookup ANY in d.possible_names RETURN d
>
> If I specify in the Queries editor names_to_lookup in the single-quotes
> form:
> ['name1', 'name2']
> then it seems like it's treated as a string instead of an array, and thus
> I get no results back.
>
> However, when I specify in the Queries editor that names_to_lookup in the
> double-quotes form:
> ["name1", "name2"]
> then it seems like it's treated as an array (as intended) and I get the
> expected results back.
>
> I'm not sure if this is a bug or a feature. While It's easy enough to
> accept using double quotes in the case of the query editor, this is more
> problematic for me since I'm relying on the Python-Mango driver where I
> have less control over the matter and where it seems at least sometimes, a
> passed-in list comes out in the double-quote form and other times in the
> single-quote form.
>
>
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