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How to delete a record in Django <em>mem>odels?
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There are a couple of ways:
To delete it directly:
So<em>mem>e<em>Mem>odel.objects.filter(id=id).delete()
To delete it fro<em>mem> an instance:
instance = So<em>mem>e<em>Mem>odel.objects.get(id=id)
instance.delete()
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How can I re<em>mem>ove a flag in C?
There is a variable that holds so<em>mem>e flags and I want to re<em>mem>ove one of the<em>mem>. But I don't know how to re<em>mem>ove it.
3 Answers
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Creating a new colu<em>mem>n based on if-elif-else condition
I have a DataFra<em>mem>e df :
4 Answers
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Create list of single ite<em>mem> repeated N ti<em>mem>es
...te a series of lists, all of varying lengths. Each list will contain the sa<em>mem>e ele<em>mem>ent e , repeated n ti<em>mem>es (where n = length of the list).
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Using Position Relative/Absolute within a TD?
...because according to CSS 2.1, the effect of position: relative on table ele<em>mem>ents is undefined. Illustrative of this, position: relative has the desired effect on Chro<em>mem>e 13, but not on Firefox 4. Your solution here is to add a div around your content and put the position: relative on that div instead...
cancelling a handler.postdelayed process
I a<em>mem> using handler.postDelayed() to create a waiting period before the next stage of <em>mem>y app takes place. During the wait period I a<em>mem> displaying a dialog with progress bar and cancel button.
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Android JSONObject - How can I loop through a flat JSON object to get each key and value
How I can get each ite<em>mem>'s key and value without knowing the key nor value beforehand?
5 Answers
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What's a standard way to do a no-op in python?
I often find <em>mem>yself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if state<em>mem>ents, but for readability I find it helps to include the<em>mem> all, so that if you are l...
:after vs. ::after
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It's pseudo-class vs pseudo-ele<em>mem>ent distinction.
Except for ::first-line, ::first-letter, ::before and ::after (which have been around a little while and can be used with single colons if you require IE8 support), pseudo-ele<em>mem>ents require double colons.
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Rails <em>mem>igrations: self.up and self.down versus change
Looks like the new rails version has "change" versus self.up and self.down <em>mem>ethods.
3 Answers
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