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How do I make many-to-many field optional in Django?
... blank was not as obvious to me because I thought the manytomany created a table that links the events with the groups (events = models.ManyToManyField(Event, related_name="groups", blank=True) So it was not clear to use the blank since Event is not actually a field in the group table. Anyway it wor...
How do short URLs services work?
...or Base 62 (case sensitive).
A simplified example of a TinyURL Database Table:
ID URL VisitCount
1 www.google.com 26
2 www.stackoverflow.com 2048
3 www.reddit.com 64
...
20103 www....
Easy way to dismiss keyboard?
I have quite a few controls scattered throughout many table cells in my table, and I was wondering if there's an easier way to dismiss the keyboard without having to loop through all my controls and resigning them all as the first responder. I guess the question is.. How would I get the current firs...
How do you query for “is not null” in Mongo?
...ta set like my sample) that rather than using an index, MongoDB will use a table scan, even for a potential covered index query. As it turns out that gives me an easy way to illustrate the difference here:
db.foo.find({}, {_id : 0, imageUrl : 1})
{ "imageUrl" : "http://example.com/foo.jpg" }
{ "im...
How to get rid of blank pages in PDF exported from SSRS
...dth, where the 2nd and 4th pages were displaying one of my fields from the table. I tried to set the layout size in report properties as width=18in and height =8.5in.
...
Convert dmesg timestamp to custom date format
... an advantage to a 3-stage pipe to get that path?
– Stabledog
Dec 31 '13 at 15:28
@Stabledog: good question. For an ex...
Is putting a div inside an anchor ever correct?
...hat the <a> element "may be wrapped around entire paragraphs, lists, tables, and so forth, even entire sections, so long as there is no interactive content within (e.g. buttons or other links)".
HTML 4.01 specifies that <a> elements may only contain inline elements. A <div> is a bl...
How to avoid the “divide by zero” error in SQL?
...1 / NULLIF(CAST(NULL AS INT), 0). In real life, you are going to supply a table column to NULLIF() rather than a NULL constant. Since table columns have known datatypes, this also works fine: SELECT 1 / NULLIF(SomeNullableColumn, 0) FROM SomeTable.
– MarredCheese
...
Centering floating divs within another div
... if they overflow the width of the div. So you actually turned them into a table...
– Pavel Jiri Strnad
May 3 '19 at 7:55
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Bootstrap 3 Flush footer to bottom. not fixed
...gt;
</footer>
CSS
html,
body { height: 100%; }
body {
display: table;
width: 100%;
}
.page-row {
display: table-row;
height: 1px;
}
.page-row-expanded { height: 100%; }
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