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Could you please explain about command object in spring frame work with an example?
from Spring Documentation:
Command Object - a JavaBean which will be populated with the data from your forms
Think of Command Object as a POJO/JavaBean/etc.. that backs the form in your presentation layer.
Once the form is submitted, all the individual attributes are mapped/bound to this object. On the way up to presentation, Command Object properties may be used to pre/populate the form.
check an example here
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od_practice.partnerships.kept.first&.omd_practice&.id
I have seen people use the word kept.first to pull data from database in ruby on rail . What does these words mean ? i have tried to do some research and i seem not find any solution. Can someone explain me please ?
This is called a message send in Ruby. In some other languages, it might be called a method call.
It is sending the message kept with no arguments to the object that was the result of evaluating the beginning of the message chain. This message send will in turn result in an object being returned, and it is then sending the message first to that object, again with no arguments.
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How can I load an OWL file in Gruff? It's not clear in the tutorials. I have a file, camera.owl. I need to display this in Gruff and view a graph of it.
I found the answer to this question myself. You need to look under the file menu. File > Load Triples > RDF/XML > File .... Thank you.
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I'm working with Prawn gem and creating a table. I want to remove all its borders. I can't find this facility in the documentation.
How do I do that?
Here is the documentation for the prawn gem tables.
According to the "Constructor Details" section, you can pass a variety of :border_<x> options to the constructor... I'd suggest trying to pass a value of :border_width => 0 to your table constructor. (note: not tested - try it yourself and see what happens)
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If i have such links in my site (i am using mvcsitemap):
http://mysite.com/coollink
http://mysite.com/coollink#contanttab1
http://mysite.com/coollink#contenttab2
If i want to submit site map to google for example, should i use the links with # in mysite XML sitemap? or better not to use them in sitemap XML?
Because in such case there would be 3 links to the same resource as i understand and it is not so good for SEO? could some one correct me if i am wrong.
As far as I know so far, hashes will be ignored by most of the search engines and they have no use for SEO. It is user more for internal page navigation or some sort of JavaScript actions.
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What are the response content types for .docx, .xlsx, .pptx, .zip etc. ? Can you give me a list of all content types ?
They're all here: http://www.iana.org/assignments/media-types/
I don't think there is any definititve list in existance, nor is there likely to ever be, of all content types because as soon as someone creates a new file format there's theoretically a new content type. Rightly, or wrongly, I've seen the following document types associated with .docx:
application/docx
application/msword
application/vnd.ms-word.document
Here you can find some: Internet media types