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Rails migration for has_and_belongs_to_many join table
...rate migration CreateJoinTableStudentTeacher student teacher
for rails 3:
rails generate migration students_teachers student_id:integer teacher_id:integer
for rails < 3
script/generate migration students_teachers student_id:integer teacher_id:integer
(note the table name lists both jo...
Get form data in ReactJS
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173
Use the change events on the inputs to update the component's state and access it in handleLogin...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
... characterise each group. For example, the mean of the red group is around 3, the mean of the blue group is around 7 (and we could find the exact means if we wanted).
This is, generally speaking, known as maximum likelihood estimation. Given some data, we compute the value of a parameter (or parame...
NuGet auto package restore does not work with MSBuild
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36
UPDATED with latest official NuGet documentation as of v3.3.0
Package Restore Approaches
N...
Parse JSON in TSQL
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edited Feb 27 '17 at 23:29
samthebrand
2,18044 gold badges3636 silver badges4848 bronze badges
answe...
Enabling markdown highlighting in Vim
... pb2qpb2q
51.9k1616 gold badges128128 silver badges136136 bronze badges
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How to re-create database for Entity Framework?
...click and delete.
2 )Go to Solution Explorer, click show All Files icon.
3) Go to App_Data, right click and delete all ".mdf" files for this project.
4) Delete Migrations folder by right click and delete.
5) Go to SQL Server Management Studio, make sure the DB for this project is not there, othe...
How to write a cron that will run a script every day at midnight?
...onth.)
Syntax:
mm hh dd mt wd command
mm minute 0-59
hh hour 0-23
dd day of month 1-31
mt month 1-12
wd day of week 0-7 (Sunday = 0 or 7)
command: what you want to run
all numeric values can be replaced by * which means all
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Weak and strong property setter attributes in Objective-C
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edited Apr 18 '13 at 11:23
answered Oct 27 '11 at 7:10
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OO Design in Rails: Where to put stuff
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384
Because Rails provides structure in terms of MVC, it's natural to end up using only the model,...