I have a question about Pylons's request.params, which returns a MultiDict object.
Does request.params preserve the ordering of the GET parameters in a reliable way?
For example, if I were to visit http://localhost:5000/hello/index?a=1&a=2 and call request.params, could I guarantee that the MultiDict object returned would be in the following order?
>>> request.params
MultiDict([('a', '1'), ('a', '2')])
I'm guessing not, because Python seems to have a separate OrderedMultiDict object used for, well, ordered MultiDicts.
If not, is there any other way I can obtain the GET parameters and preserve their ordering in Pylons?
As I remember, even if you can get Pylons to preserve the ordering, you're not supposed to rely on that kind of behavior because not all user agents (browsers, bots, etc.) preserve ordering either and that's outside your control.
If it's part of the HTTP spec, it's not reliably followed... I doubt it is.
For example, suppose the user agent is a Python application which handles query parameters using dicts.
Related
If I navigate to /rest/api/2/issue/createmeta/PROJ/issuetype/N (in this case, I'm getting Task), the list of fields returned is incomplete. There are a number of customfields that are in use (I can see them both in the tickets themselves, and also in /plugins/servlet/project-config/PROJ/fields ) that are in the createmeta data.
I'm really trying to do this in python jira, where I'm using "expand='projects.issuetypes.fields'" in the createmeta() call, but I figured I'd double-check the results in the rest API directly, and I'm getting the same results there, too.
This is happening in jira 8.20.7.
Essentially, what I'm trying to do, is to programatically get a name/id mapping of all fields in the ticket type. I'm having far more difficulty doing that than I thought there would be. I would do it based on /rest/api/2/field but the jira admins have allowed some duplicated names...
EDIT: I realized that it might be worth noting that some of the fields I'm looking for are coming from a ServiceDesk form, although, as far as I can tell, there's no way to determine that, since one of the missing fields contains the name of the form.
Why are you using createmeta endpoint?
Instead of that, in order to get all of the customfields and their values; just note their id and get the values from /rest/api/2/issue/{issueKey} endpoint.
When you send a GET request to /rest/api/2/issue/{issueKey} endpoint, you will get a JSON object which contains "fields" object in it.
And using the "fields" you can determine all of the values that include system fields (description, assignee, etc.) and custom fields (like customfield_<customfieldid>).
And for a general approach, you may want to look at the field types in that response.
I have a bunch of filter categories represented by checkboxes, right now it's sending the full name + on in the query_params.
/?max%5D=5&Movies=on&Art=on&Outdoors=on
Instead, I'd rather just look for the presence of the key to know it's there. This would make the url a bit shorter for people to copy/paste.
/?max%5D=5&Movies&Art&Outdoors
Or, can I have one category key with all the checkboxes as values?
I think it's not possible by default, you'd have to construct an onsubmit script to build the URL and redirect to it, rather than posting directly to the server. You might be better off leaving it as it is.
When dynamically building SQL queries you often see something like this:
WHEN 1=1 AND title="Example" AND ...
The purpose of the 1=1 is to be able to keep appending AND-statements without having to check if any previous statements exist. Thereby avoiding something like this happening:
WHEN AND title="Example" AND ...
I quite often come across a related issue when building the the attributes/search-query for a GET request. I don't want to keep checking if I need to prepend the attribute with '?' or '&'.
So my question is, is there any 'safe' way for me to add an initial attribute that won't interfere with any potential software on the server side. Assuming I do not have full knowledge of the backend.
Something like:
http://example.com?1=1&title=example
http://example.com?null&title=example
http://example.com?i-am-useless&title=example
Or is this allowed?
http://example.com?&title=example
Is there perhaps a simpler way to solve this?
Make sure the URI-string you want to add parameters to already ends in a '?'. Then for every key-value pair, add 'key=value&' to it. Optionally you can then in the end delete the last character from the resulting string. - Reddit user omepiet
Dealing with some legacy code we came across a rather annoying situation. We are looping through a query with the <cfoutput query="x"> tag. That query has a column named 'url'. Within that loop we need to check if a key exists within the url scope. Since CF puts a priority on what's in the query over general page scopes I can't use a structKeyExists(url,"key") since as far as CF is concerned at this point, url is a string with the value from the current row of the query.
How can I break out of the query scope and inspect what's in my url?
As a temporary we are using isDefined("url.key"), but I would still like to know if there is a way to break out of the query scope.
Also can't really change the column, or even the column name in the query without a few hours of work tracking down an changing all references to it, so we're going to avoid that if at all possible.
EDIT:
There seems to be some confusion as to how this code is set up, and why the simple solutions don't apply. It would be hard for me to give a thorough example but I will try to clarify the situation.
There are many pages that would count as 'pageA' for the following example. Enough that changing how things work would require a change in scope and investment in time that's just not going to happen in the time allotted.
PageA runs a query with one of the columns being named url, then starts an output loop via cfoutput, inside that loop PageB is included. One PageA may have different variables in the URL scope than another PageA, actually they are the same, but may be named differently(varID=x in one case vid=x in another). Inside of PageB I need to use the value from that url scope, so I want to run through the different possible names (if key 'varID' exists in url, use it, otherwise use 'vid').
This is why I want to "punch through" the query scope to get the url structure, and not the url column from the query. Any other method seems to require modifying the many PageAs.
So the question is not how to solve this problem specifically, as there are many ways to do it, I would just really like to avoid them as they all add a lot of time in implementation and testing. The question remains, is there a way to access the url scope as a variable if url exists as a query column and you are in the query scope.
I thought it might work to create a function that returned the url scope, but upon testing it, even with a local-scoped query (which prevents the function using the query itself) the use of url inside the function is still corrupted:
<cffunction name="getUrlScope"><cfreturn Url /></cffunction>
...
<cfoutput query="x">
<cfif StructKeyExists( getUrlScope() , 'key' )>
<!--- still fails :( --->
There is however an undocumented (meaning unsupported and liable to change) option. If you dump getPageContext() you will see a bunch of functions that do interesting things, including dealing with scopes.
You can use getPageContext().SymTab_findBuiltinScope('URL') to get at the URL scope.
You can also use getPageContext().getCfScopes() to get an array of scopes. I'm not sure if the order is guaranteed fixed but it seems to be [cgi,?,url,form,cookie,?] checking on both CF10 and cflive (CF9), so possibly is.
(In CF8 there was the method getBuiltinScopes, which returned a struct instead of an array - this no longer appears to exist, reinforcing the whole unsupported and changeable nature of these methods.)
On Railo those don't work, but there is getPageContext.UrlScope() and similarly-named functions for the other scopes.
One solution would be to assign the url struct to a new variable outside of the cfoutput tag and then reference that variable instead of url. Example:
<cfset urlScope = url>
<cfoutput query="x">
<cfset keyExists = structKeyExists(urlScope, "key")>
</cfoutput>
My solution for this is always to alias the url column in the query as int
SELECT URL as qURL FROM myTable ...
IF you don't have access to the query (it's a stored precedure or used elswhere etc) you can always use query of a query to reselect it with your alias.
I don't care for the idea of creating a separate reference to URL outside the output - but that would also work. I just want to KNOW what is user input (i.e. comes from the URL or FORM) and what is generated internally (i.e. comes from a query).
Couldn't you move structKeyExists(url,"key") outside of the cfoutput block, and store that into a variable? Or do a structAppend to copy the url struct into another struct named something else?
Another approach is to replace your cfoutput block with a cfloop block.
<cfloop from="1' to = "#YourQuery.recordcount#" index = "idx">
<cfif StructKeyExits(url,"key")>
<cfoutput>
#url.key# is not the same as #YourQuery.url[idx]#
which can also be referenced like this #YourQuery["url"][idx]
etc
I've got a JSON hash of hashes returned by a website API that I want to parse and display based on a specific key's value within the internal hashes.
I can think of solutions that would achieve this, but they would take a number of lines of code and don't seem efficient. Surely there must be a way to natively in Rails, given the focus on convention over configuration. I've googled around a bit, but found nothing that covers this issue.
Sample Response from API:
[{"banner":"01197271","birthday":"1991-01-11","committee_id":1,"created_at":"2012-08-08T01:56:02-05:00","email":"me#example.com","first_name":"Dan","graduation_date":"May 2013","hometown":"San Antonio","hours_enrolled":15,"id":2,"image":{"url":null,"thumb":{"url":null},"large":{"url":null}},"invitation_accepted_at":null,"invitation_limit":null,"invitation_sent_at":null,"invitation_token":null,"invited_by_id":null,"invited_by_type":null,"last_name":"Tester","local_apt":"","local_city":"San Antonio","local_state":"Texas","local_street":"One UTSA Circle","local_zip":"78249","major":"Computer Science","permanent_apt":"","permanent_city":"","permanent_state":"","permanent_street":"One UTSA Circle","permanent_zip":"","phone":"5558813284","same_address":true,"tour_trained":false,"updated_at":"2012-08-17T03:35:26-05:00","utsa_id":"uoi431"},
{"banner":"","birthday":"1990-10-25","committee_id":null,"created_at":"2012-08-03T16:19:23-05:00","email":"you#example.com","first_name":"Test","graduation_date":null,"hometown":null,"hours_enrolled":null,"id":1,"image":{"url":null,"thumb":{"url":null},"large":{"url":null}},"invitation_accepted_at":null,"invitation_limit":null,"invitation_sent_at":null,"invitation_token":null,"invited_by_id":null,"invited_by_type":null,"last_name":"User","local_apt":"","local_city":"","local_state":"","local_street":"","local_zip":"","major":null,"permanent_apt":"","permanent_city":"","permanent_state":"","permanent_street":"","permanent_zip":"","phone":"","same_address":false,"tour_trained":false,"updated_at":"2012-08-15T10:05:54-05:00","utsa_id":""}]
Potential solution would be to go through each internal hash, determining value of relevant key value, then store, based on where the key value places it compared to already tested hashes. When complete, return.
Ok so if you have objects that are set up to parse this information, those objects can build themselves based off the parameters of your hash. So you could do something like this
object = MyObject.create(your_hash_parameters)
Where your_hash_parameters are the parameters that you presented in your example.
I'm not sure what would happen if there were more paramaters than your object knew what to do with, if it would still build itself or not. If that is the case, you could use the delete_if method to exclude attributes that are unwanted.
One more note, if this isn't something that you want saved to your database, and its only to display temporary information. I would set up a model with attr_accessors that represent the attributes that you are displaying.
As told in comment, I'd create an ActiveResource object and add relevant methods to it.