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Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?
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@marcelm that’s what select_related is for. the get_queryset() of the UserAdmin will have to be overwritten.
– interDist
Jul 17 '17 at 21:38
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TimePicker Dialog from clicking EditText
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eReminderTime.setText( "" + selectedHour + ":" + selectedMinute);
Your missing a + between "" and selected hour, setText methods only take a single string, so you need to concatenate all the parts (the first quotes are likely unnecessary).
eReminderT...
Delete sql rows where IDs do not have a match from another table
...HERE f.id IS NULL
Using NOT EXISTS:
DELETE FROM BLOB
WHERE NOT EXISTS(SELECT NULL
FROM FILES f
WHERE f.id = fileid)
Using NOT IN:
DELETE FROM BLOB
WHERE fileid NOT IN (SELECT f.id
FROM FILES f)
Warning
Whenever possible, per...
Easier way to debug a Windows service
...classes.
The solution I came up with uses the Environment.Interactive the select running mode, as suggested by other answers to this post.
static void Main()
{
ServiceBase[] servicesToRun;
servicesToRun = new ServiceBase[]
{
new MyService()
};
if (Environment.UserInter...
Submit jQuery UI dialog on
...neat, in Firefox 7.0.1 this will also trigger your "OK" button if the user selects something from the autocomplete drop down box, e.g. a previously entered email address.
– cburgmer
Mar 11 '12 at 9:49
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Peak detection in a 2D array
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Output without overlapping squares. It seems that the same areas are selected as in your example.
Some comments
The tricky part is to calculate sums of all 2x2 squares. I assumed you need all of them, so there might be some overlapping. I used slices to cut the first/last columns and rows fr...
Eclipse: Enable autocomplete / content assist
...efault in Eclipse you only have to press Ctrl-space for autocomplete. Then select the desired method and wait 500ms for the javadoc info to pop up.
If this doesn't work go to the Eclipse Windows menu -> Preferences -> Java -> Editor -> Content assist and check your settings here
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Sequence contains no elements?
...in dc.BlogPosts
where p.BlogPostID == id
select p).Single();
Also; if this is LINQ-to-SQL, then in the current version you get a slightly better behaviour if you use the form:
var id = ID;
BlogPost post = dc.BlogPosts.Single(p => p.BlogPostID == id);
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The cast to value type 'Int32' failed because the materialized value is null
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where u.ID == userID
select (int?)ch.Amount).Sum() ?? 0;
This first casts to int? to tell the C# compiler that this expression can indeed return null, even though Sum() returns an int. Then we use the normal ?? operator to handle the null case....
Shortest distance between a point and a line segment
...community wiki
5 revs, 3 users 97%char m
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