Check if property exists in object - ruby

I spent a long time now trying to figure this myself with the help of other questions but failed so I REALLY need to ask this again
I have the following object in ruby
(...)
:follow_request_sent:
:notifications:
:coordinates:
:place:
:contributors:
:favorite_count: 0
:entities:
:hashtags:
- :text:
:indices:
(...)
This is object X. What I want to do is check if x.place exists. I've tried barely EVERYTHING. any, ?, include?, with [hash], defined?, (...) but it ALWAYS throws an error "undefined method" when trying to access the property, whether it exists or not. It NEVER works and I don't understand why. This is twitter API btw. Does anyone imagine why? Please do not point me to another answers because basically they all failed.

If you want to see if there is such a method:
x.respond_to?(:place)
If you want to see if there is an instance variable:
x.instance_variable_defined?(:#place)

Related

Ruby .include? method is not accepted as a valid method

I have this Ruby code in a script:
$dev_input=gets.chomp.downcase!
if $dev_input.include? "/"
check_developer_commands()
else
puts ">>Invalid Command<<"
continuing_dev_mode()
end
The problem is, whenever I try and run the script containing this, I get an error spat back at me that says :
dev_continue_main.rb:3:in 'continuing_dev_mode': undefined method 'include?' for nil:NilClass (NoMethodError)
Any idea what this error might be? I'm pretty sure that this is the proper way to use the .include? method. I've done some research, looked at tutorialspoint.com and some other sites, but they agree that this is the proper way to use this method.
I checked the error message and it confirmed that the third line in this script/my example is the source of the problem, so it's not some other instance of this method throwing an error.
Any thoughts? Please Help!
The problem is that $dev_input is nil. That stems from applying downcase! in defining $dev_input. I don't know why you want to possibly assign nil to $dev_input, and at the same time claim that calling include? on it is the right way. I don't get your intention for doing that, but if you instead had $dev_input = gets.chomp.downcase, then it wouldn't cause such error.

QTP - if object exists in object repository

In QTP is there any way in the code to check to see if a specific object exists in the object repository. I have tried the following code:
If JavaWindow(className).JavaDialog(dialogName).Exist Then
doThisStuff
Else
doThisStuffInstead
End If
But from what I have gleamed from the Internets, this is similar to a isVisible method, only resulting in true if the specified object is currently visible. When I use the above code I receive a "JavaDialog object was not found in the Object Repository." Is there a method or any way to prevent this very error and check to see if the object does indeed exist?
Thank you for your time
I'm not sure what you're trying to accomplish here, one typically knows if an object exists in the object repository before using it. The doubt is usually whether there is a corresponding control in the AUT (Application Under Test).
If you really face the situation that sometimes the object is in the repository and sometimes it isn't (I can think of several ways for this to happen but none of them make much sense) then you can use VBScript's error handling mechanism.
On Error Resume Next ' Turn off error handling
' Just check if object is in repository, there's no need to do anything with it
Dim Exists: Exists=JavaWindow(className).JavaDialog(dialogName).Exist
If Err.Number <> 0 Then
doThisStuff 'Exists is still empty
Else
doThisStuffInstead ' Exists is properly set
End If
On Error Goto 0 ' Resume regular error handling
So, from the error you get, either the dialog that appears is different from the one you've stored in the repository or you don't have it there.
Have you checked it is really present in the Repository? You can try to just locate this element button.
Using the method of "if object not in the repository - skip the step" is not really a good idea. 1. Why would you want to skip the test/part of the test if the object was not saved in the repository?
2. If it's not there, so you need to make sure to store it.
I would assume that this "missing" object might have some values by which it's matched to the object from the repository different from test to test. You can tune the "matching" mechanism by manually setting the values by which you want QTP to locate it.

Rally API using Ruby: How do I reference the testcase method (Automated/Manual)?

I am using Ruby to work with the Rally API. I am trying to reference the testcase method. The method being Manual or Automated, but I always get an error. I am using Ruby, so I don’t know if method is a reserved word in Ruby, or what is happening. Could you please let me know how to reference the test case method?
I am able to do:
testcase.objective
testcase.priority
etc.
But I can’t do
testcase.method
I always get this error.
‘method’: wrong number of arguments (0 for 1) (ArgumentError)
Are you using rally_rest_api or rally_api?
If you are using rally_rest_api - Charles is correct. try testcase.elements[:method]
(fieldname downcased and underscored as a symbol)
If you are using rally_api - http://rubygems.org/gems/rally_api -
Getting fields can just be:
testcase["FieldName"]
Hope that helps.
You just need to capitalize the names when trying to access built-in fields (i.e. fields that are not custom). I came across this problem myself and using tc.Method instead of tc.method fixed it.
The reason this error shows up can be seen in the docs for Object#method which, as you've likely figured out by now, causes your code to call the method method instead of access the field named method.

WaitUntilExists() method call

I am relatively new to WatiN, but I would have thought the following line would have worked:
WebBrowser.Current.Table("grid").FindRow(value, columnNum).WaitUntilExists();
Currently it fails with the following exception:
System.NullReferenceException: Object reference not set to an instance of an object.
I am guessing it has to do with the fact that the row in question has not been populated when the tet runs, and hence FindRow returns a null.
I have replaced the line with:
while (WebBrowser.Current.Table("grid").FindRow(value, columnNum) == null){}
which works - but would prefer to use a WatiN in built method (with a timeout).
Any ideas as to how to fix my first line of code? Thanks!
Well, WaitUntilExits() is different than WaitUntilIsNotNull ( which isn't a method :D )
You can probably use
WebBrowser.Current.Table("grid").FindRow(value, columnNum).WaitForComplete()
or
WebBrowser.Current.Table("grid").FindRow(value, columnNum).WaitUntilExists()
or
WebBrowser.Current.Table("grid").FindRow(value, columnNum).WaitUntil(attribute, value)
depending on what you need

DbLimitExpression requires a collection argument

Does anyone have the faintest idea what this error means please and how to resolve it? All my research is drawing a blank, I can see how to set it on MSDN but it doesn't explain it in a way that explains to me what the issue is. If I remove some of my LINQ queries to set viewbag items then it seems to resolve it but the moment I set new ones and pass them into my view to generate a mail for MVCMailer it comes back. Not sure if its a viewbag issue or simply that I am calling too many linq queries to generate them to pass to the view.
I am very stuck (again)..........
Cheers,
Steve.
DbLimitExpression requires a collection argument.
Parameter name: argument
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: DbLimitExpression requires a collection argument.
Parameter name: argument
An example of the code is:
var VBSalutation = from A in context.Salutations
where A.SalutationId == policytransaction.SalutationId
select A.SalutationName;
ViewBag.Salutation = VBSalutation.FirstOrDefault();
This is repeated for various parameters and then passed to the view.
Well, I faced a similar problem and solved it. Problem was in WHERE clause: data type of left side equal operator (=) sign was not matching with data type of right side. So in your scenario:
where A.SalutationId == policytransaction.SalutationId
SalutationID of A might be an INT and SalutationId of policytransaction might be a string (This is how it was in my case).
I solved it by assigning policytransaction.SalutationId to an Int variable and using it:
int myIntVariable = Convert.ToInt16(policytransaction.SalutationId);
...//some code here
where A.SalutationId == myIntVariable;
Please also note that you cannot directly cast your variables directly in Linq else you'll get an error "LINQ to Entities does not recognize the method". You'll have to use a temp variable and then apply the where clause.
Try ViewBag.Salutation = VBSalutation.SingleOrDefault();

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