StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
5257661
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-03-10T09:26:26.943
FavoriteCount
0
LastActivityDate
2011-03-10T09:32:04.337
LastEditDate
2011-03-10T09:32:04.337
LastEditorUserId
85360
OwnerUserId
85360
ParentId
5257128
PostTypeId
2
Score
11
ViewCount
0
LastEditorDisplayName
text
Body
<p>I am not sure whether Django's ORM can perform a conversion of datetimes to dates in the middle of a query. You could, though, do the query first, get the results, then use the Python <code>groupby()</code> function to sort out the rows that are returned. Here is a small example of grouping datetimes by date:</p> <pre><code>from pprint import pprint from datetime import datetime from itertools import groupby rows = [('Frodo party', datetime(3018, 9, 22, 10, 38)), ('Nazgul defeat Rangers', datetime(3018, 9, 22, 11, 57)), ('Frodo finishes packing', datetime(3018, 9, 23, 10, 59)), ('Gandalf tames Shadowfax', datetime(3018, 9, 23, 13, 11)), ('Gandalf crosses the Isen', datetime(3018, 9, 24, 18, 46))] for key, values in groupby(rows, key=lambda row: row[1].date()): print('-') pprint(key) pprint(list(values)) </code></pre> <p>As you can see, you have to provide <code>groupby()</code> with a <code>key</code> function that takes one of the objects that it is grouping and extracts the value by which the grouping should take place — in this case, it grabs the second item in each row with <code>[1]</code> and then calls the Python <code>datetime</code> method <code>date()</code> on it to extract the date part without the hours and minutes. The output of the script looks like this (the <code>pprint()</code> function is just a fancy "print" statement that indents the output, it won't be needed in your Django code!):</p> <pre><code>- datetime.date(3018, 9, 22) [('Frodo party', datetime.datetime(3018, 9, 22, 10, 38)), ('Nazgul defeat Rangers', datetime.datetime(3018, 9, 22, 11, 57))] - datetime.date(3018, 9, 23) [('Frodo finishes packing', datetime.datetime(3018, 9, 23, 10, 59)), ('Gandalf tames Shadowfax', datetime.datetime(3018, 9, 23, 13, 11))] - datetime.date(3018, 9, 24) [('Gandalf crosses the Isen', datetime.datetime(3018, 9, 24, 18, 46))] </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. PODjango - Group By with Date part alone
  singulars
  PostTypePostTypeId
  PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USBrandon Rhodes
UserOwnerUserId
1. USBrandon Rhodes
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. PODjango - Group By with Date part alone
  singulars
  PostTypePostTypeId
  PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
  singulars
  PostPostId
  PO
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
2. VO
  singulars
  PostPostId
  PO
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTAcceptedByOriginator
3. VO
  singulars
  PostPostId
  PO
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.