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Clear text from textarea with selenium
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It may be an issue with conflicting selenium and chromedriver versions. It seems unlikely that the devs would remove this functionality from chromedriver deliberatly.
– Isaac
Sep 12 '15 at 15:25
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How to remove a field from params[:something]
... this question was written newer versions of Rails have added the extract! and except eg:
new_params = params.except[the one I wish to remove]
This is a safer way to 'grab' all the params you need into a copy WITHOUT destroying the original passed in params (which is NOT a good thing to do as it ...
Align DIV's to bottom or baseline
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Use the CSS display values of table and table-cell:
HTML
<html>
<body>
<div class="valign bottom">
<div>
<div>my bottom aligned div 1</div>
<div>my bottom aligned div 2</div>
<div>...
Why use multiple columns as primary keys (composite primary key)
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Your understanding is correct.
You would do this in many cases. One example is in a relationship like OrderHeader and OrderDetail. The PK in OrderHeader might be OrderNumber. The PK in OrderDetail might be OrderNumber AND LineNumber. ...
TypeScript: casting HTMLElement
...s further, suppose you use $('[type:input]').each( function(index,element) and you need element to be cast to HTMLInputElement or HTMLSelectElement depending on which property you need to set/get, casting use (<HTMLSelectElement><any>element).selectedIndex=0; adds () around element , kin...
JSON.stringify output to div in pretty print way
... pre tells the browser engine that the content inside is pre-formatted and it can be displayed without any modification. So browser will not remove white spaces, new lines etc. code is for making it more semantic and denotes that the content inside is a code snippet. It has nothing to with form...
Sort NSArray of date strings or objects
...[NSArray sortedArrayUsingSelector: or -[NSMutableArray sortUsingSelector:] and pass @selector(compare:) as the parameter. The -[NSDate compare:] method will order dates in ascending order for you. This is simpler than creating an NSSortDescriptor, and much simpler than writing your own comparison fu...
When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingB...
How to list all users in a Linux group?
How do I list all members of a group in Linux (and possibly other unices)?
20 Answers
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How to define two fields “unique” as couple
...ax_length=50)
class Meta:
unique_together = ('field1', 'field2',)
And in your case:
class Volume(models.Model):
id = models.AutoField(primary_key=True)
journal_id = models.ForeignKey(Journals, db_column='jid', null=True, verbose_name = "Journal")
volume_number = models.CharField('Vol...