I have just started with Prolog and I have come to a roadblock. I have searched for an answer to this here and on google for maybe 2 hours now. Its probaly really easy and I probably missed it but I am about to give up so please help me.
I dont really know how to ask the question so here is an example.
Lets say I have this:
related(football, sport).
related(thing, otherthing).
related(rugby, sport).
I want to make a rule. One of the conditions in this rule is to check if I am related to anything.
rule(A) :- <Here I want to check if A is related to anything> , othercondition(A).
I need to know if its related to anything at all. What it is related to does not matter.
using
rule(rugby).
for example would give me true since rugby is related to sport.
I hope my question is clear enough.
You could write:
rule(A):-related(A,_),othercondition(A).
Note that '_' is anonymous variable and matches with anything.
Related
I used to use queries like this when searching:
https://www.googleapis.com/books/v1/volumes?q=isbn:0590353403&langRestrict=en&maxResults=5&printType=books&showPreorders=false&fields=items(volumeInfo(authors,imageLinks,pageCount,title,industryIdentifiers))
Recently however, it seems that using langRestrict=en no longer return results. If I remove that, it works again.
https://www.googleapis.com/books/v1/volumes?q=isbn:0590353403&maxResults=5&printType=books&showPreorders=false&fields=items(volumeInfo(authors,imageLinks,pageCount,title,industryIdentifiers))
If I look at the book in question, the language is listed as language="un" now:
https://www.googleapis.com/books/v1/volumes?q=isbn:0590353403
Can anyone explain what changed, and should I be using langRestrict=un instead? (What language is un? I can't seem to find information on it.) Thank you.
all Im trying to add a few letters before the order number in magento, currently they are at default 100000001, 100000002, etc but I'm wanting something like,TD10000001, TD10000002, I've checked out several tutorials that say I need to edit the: Mage_Eav_Model_Entity_Increment_Numeric function but there doesn't seem to be a decent tutorial telling me how to do this.
Any help would be appreciated.
Answered, found an awesome free plugin by MSWebDesign that allows prefixes before the order number exactly what I wanted, hope this helps anyone else.
I may have misunderstood what index is, after reading my question, you'll soon realize so please correct me if i was wrong. anyhow,
Is there any tutorial on paginating in codeigniter. Something that is simple and concise, i don't need complex ones since ill have hard time understanding the whole code.
A B C D
Ants
Airplane
Something like above, instead of number paging, would it be possible to paginate by first letters?
Ive encountered alot of sites that have these although im not sure if coding this would need any add-ons.
I think you have to build one. already this topic is disccused in CI forum.
Please check the forum link:
http://ellislab.com/forums/viewthread/164849/
I am developing an application that requires the use of a short code, but I can't seem to figure out where to get one. I need one in India, but when I look for one, there are plenty of companies that rent keywords to use in their short code, but I can't find anyway to get my own short code. Once again, I want my own short code, not a keyword in someone else's. Can someone point me in the right direction?
Better you contact Service providers like vodafone, Airtel, relaince...
Just by googling I came across this, May be This be of some help
I'm relatively new to Watir but can find no good documentation (examples) regarding how to check if an element exists. There are the API specs, of course, but these make precious little sense to me if I don't find an example.
I've tried both combinations but nothing seems to work...
if browser.image (:src "/media/images/icons/reviewertools/editreview.jpg").exists
then...
if browser.image (:src "/media/images/icons/reviewertools/editreview.jpg").exists?
then...
If anyone has a concrete suggestion as per how to implement this, please help! Thanks!
It seems you are missing a comma between parameters.
Should be
if browser.image(:src, "/media/images/icons/reviewertools/editreview.jpg").exists?
Also you can find this page useful in future to know what attributes are supported.
The code you posted should work just fine.
Edit: Oops, wrong. As Katmoon pointed out, there is a missing comma.
browser.image(:src "/media/images/icons/reviewertools/editreview.jpg").exists?
One problem you may get caught up in is if the browser variable you specified is actually an element that doesn't exist.
e.g.
b = Watir::IE.start(ipAddress)
b.frame(:name, "doesntExist).image(:src "/media/images/icons/reviewertools/editreview.jpg").exists?
The above code will throw a Watir::UnknownFrameException. You can get around this by first verifying the frame exists or by surrounding the code in a begin/rescue block.
Seems like you are using it correctly. Here is an old RDoc of Watir.
Does it not work because Watir cannot find it? Hard to tell because there is no source or link to the page that is being tested. I think that I only use image.exists?. In general, errors that come from when the image exists but is not found are:
The how is not compatible with the element type. There is a cheatsheet to help you see which object types can be found with different attributes here.
The what is not correct. You may have to play with that a little bit. Consider trying a regex string to match it such as browser.image(:src, /editreview.jpg/). As a last resort, maybe use element_by_xpath, but there are maintenance costs with that.
The location is not correct. Maybe the element is in a frame or something like that. browser.frame("detail").image(:src, /editreview.jpg/).
Try those, but please let me know what worked. One more thing, what are you checking for? If it's part of the test criteria, you can handle it that way. If you need to click on it, then forget the .exists? and just click on it. Ruby will let you know if it's not there. If you need it to be grace, learn about begin/rescue.
Good luck,
Dave