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Django migration strategy for renaming a model and relationship fields
I'm planning to rename several models in an existing Django project where there are many other models that have foreign key relationships to the models I would like to rename. I'm fairly certain this will require multiple migrations, but I'm not sure of the exact procedure.
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How to import CSV file data into a PostgreSQL table?
..._sql("my_table_name", engine)
And here's some code that shows you how to set various options:
# Set it so the raw sql output is logged
import logging
logging.basicConfig()
logging.getLogger('sqlalchemy.engine').setLevel(logging.INFO)
df.to_sql("my_table_name2",
engine,
if_e...
How to split csv whose columns may contain ,
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Use the Microsoft.VisualBasic.FileIO.TextFieldParser class. This will handle parsing a delimited file, TextReader or Stream where some fields are enclosed in quotes and some are not.
For example:
using Microsoft.VisualBasic.FileIO;
stri...
Switching the order of block elements with CSS [duplicate]
Let's say my HTML is already set in stone:
11 Answers
11
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HTML inside Twitter Bootstrap popover
...except... It shifts me all the way back to the top of the page. I have it set in a foreach loop of bootstrap thumbnails. Any ideas?
– foxtangocharlie
Feb 17 '17 at 18:32
add...
count vs length vs size in a collection
...ms, the size of a string doesn't seem very obvious, whilst the length of a set is equally confusing even though they might be used to refer to the same thing (number of elements) in a collection of data.
share
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MaterialDialog 对话框增强扩展 · App Inventor 2 中文网
...oast 内容是否自动换行。设置为 true 则自动换行，设置为 false 则不换行。在调用 ShowToast 之前设置，以控制 Toast 的布局方式。
事件
OnButtonClick 按钮点击时(dialogId,buttonType)
当标题对话框（CreateTitleDialog 创建...
How to disable visual “dots” in Visual Studio Editor
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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How do I upgrade PHP in Mac OS X?
I feel this is an awfully obtuse question to ask, but strangely, this problem is poorly documented.
13 Answers
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How to get a subset of a javascript object's properties
Say I have an object:
25 Answers
25
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