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Many-to-many relationship with the same model in rails?
...directional, no additional fields
This is the most compact in code.
I'll start out with this basic schema for your posts:
create_table "posts", :force => true do |t|
t.string "name", :null => false
end
For any many-to-many relationship, you need a join table. Here's the schema for that...
How do I recover/resynchronise after someone pushes a rebase or a reset to a published branch?
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Starting with git 1.9/2.0 Q1 2014, you won't have to mark your previous branch origin before rebasing it on the rewritten upstream branch, as described in Aristotle Pagaltzis's answer:
See commit 07d406b and commit d96855f :
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What are bitwise shift (bit-shift) operators and how do they work?
...ears (where justified) until I noticed abt 10 years ago that compilers had started doing this transform in the optimizer, then I stopped. Still good to know, since there are similar situations where the compiler can't make the transform for you. Or if you're working on a compiler.
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How do I get current date/time on the Windows command line in a suitable format for usage in a file/
... this is a pretty portable):
@if (@X)==(@Y) @end /****** silent line that start JScript comment ******
@echo off
::::::::::::::::::::::::::::::::::::
::: Compile the script ::::
::::::::::::::::::::::::::::::::::::
setlocal
if exist "%~n0.exe" goto :skip_compilation
set "frm=%SystemRoot%...
Uncaught ReferenceError: jQuery is not defined [duplicate]
...n the certificate for the site expires. Today I got it and all of my sites started failing on refresh because of it. On your console you'll only see: ReferenceError: jQuery is not defined The problem is you won't find the cause until you look at the URL and see this: code.jquery.com uses an in...
.NET / C# - Convert char[] to string
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Use the string constructor which accepts chararray as argument, start position and length of array. Syntax is given below:
string charToString = new string(CharArray, 0, CharArray.Count());
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Skip the headers when editing a csv file using Python
...ng wrapping to subsequent usage, in the case where the islice would have a start but no end, so the overhead isn't gaining you anything.
– ShadowRanger
Jan 5 '16 at 14:37
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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
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Correct your Code like this:
try
{ //method try starts
String sql = "INSERT into TblName (col1, col2) VALUES(?, ?)";
pStmt = obj.getConnection().prepareStatement(sql);
pStmt.setLong(1, subscriberID);
for (String language : additionalLangs) {
pStmt.setInt(2, I...
How can I get a collection of keys in a JavaScript dictionary? [duplicate]
...It works fine for modern browsers (however, Internet Explorer supports it starting from version 9 only).
To add compatible support you can copy the code snippet provided in MDN.
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Is there a command to list SVN conflicts?
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-P tells grep to use perl regex, ^ = start of string, (?=) enclose the lookahead pattern which is .{0,6} any 0 to 6 characters and the letter C, which is the indicator for conflicts
– Pete
Nov 22 '13 at 21:56
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