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Rails :include vs. :joins
...Name(string), Age(integer). The Comment model has the following attributes:Content, user_id. For a comment a user_id can be null.
Joins:
:joins performs a inner join between two tables. Thus
Comment.joins(:user)
#=> <ActiveRecord::Relation [#<Comment id: 1, content: "Hi I am Aaditi.Th...
Commit only part of a file in Git
...want to stage and which line you don't.
Regarding editing commands:
added content:
Added content is represented by lines beginning with "+". You can prevent staging any addition lines by deleting them.
removed content:
Removed content is represented by lines beginning with "-". You can pr...
HtmlSpecialChars equivalent in Javascript?
...ly, this is harder to find than I thought it would be. And it even is so simple...
16 Answers
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How can I check the m>ex m>tension of a file?
I'm working on a certain program where I need to do different things depending on the m>ex m>tension of the file. Could I just use this?
...
“#include” a tm>ex m>t file in a C program as a char[]
...e.xxd $ echo ', 0' >> file.xxd and in the main.c char file_content[] = { #include "file.xxd" };
– ZeD
Jan 4 '09 at 16:10
3
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Using curl POST with variables defined in bash script functions
... in the invocation of curl:
curl -i \
-H "Accept: application/json" \
-H "Content-Type:application/json" \
-X POST --data "$(generate_post_data)" "https://xxx:xxxxx@xxxx-www.xxxxx.com/xxxxx/xxxx/xxxx"
This said, here are a few clarifications about shell quoting rules:
The double quotes in the -H...
How can I add the new “Floating Action Button” between two widgets/layouts
...ionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:clickable="true"
android:src="@drawable/ic_done"
app:layout_anchor="@id/viewA"
app:layout_anch...
Android - Using Custom Font
...ompany.myapp.widget.CustomFontTm>ex m>tView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:tm>ex m>t="foobar"
customAttrs:customFont="roboto_thin" />
</RelativeLayout>
...
Setting mime type for m>ex m>cel document
...he document, you should set the following header in the response:
header('Content-Disposition: attachment; filename="name_of_m>ex m>cel_file.xls"');
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Calling Java varargs method with single null argument?
If I have a vararg Java method foo(Object ...arg) and I call foo(null, null) , I have both arg[0] and arg[1] as null s. But if I call foo(null) , arg itself is null. Why is this happening?
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