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How to set a default value for a datetime column to record creation time in a migration?
...e is a sample migration:
class CreatePosts < ActiveRecord::Migration[5.0]
def change
create_table :posts do |t|
t.datetime :modified_at, default: -> { 'CURRENT_TIMESTAMP' }
t.timestamps
end
end
end
See discussion at https://github.com/rails/rails/issues/27077 and an...
What is Model in ModelAndView from Spring MVC?
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answered Feb 20 '11 at 5:20
limclimc
35.4k1919 gold badges9292 silver badges139139 bronze badges
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Generate random numbers uniformly over an entire range
... std::uniform_int_distribution. Here's an example:
const int range_from = 0;
const int range_to = 10;
std::random_device rand_dev;
std::mt19937 generator(rand_dev());
std::uniform_int_distribution<int> distr(range_from, range_to);
std::cout <<...
Is there a JavaScript function that can pad a string to get to a determined length?
... solution here and this is for me much much simpler:
var n = 123
String("00000" + n).slice(-5); // returns 00123
("00000" + n).slice(-5); // returns 00123
(" " + n).slice(-5); // returns " 123" (with two spaces)
And here I made an extension to the string object:
String.prototype.paddingLef...
How do you truncate all tables in a database using TSQL?
...
For SQL 2005,
EXEC sp_MSForEachTable 'TRUNCATE TABLE ?'
Couple more links for 2000 and 2005/2008..
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nuget 'packages' element is not declared warning
...rning. To do this, create file named "packages.xsd":
<?xml version="1.0" encoding="utf-8" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
targetNamespace="urn:packages" xmlns="urn:packages">
<xs:element name="packages">
<xs:...
Simulator error FBSSystemServiceDomain code 4
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MarieMarie
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Regex using javascript to return just numbers
If I have a string like "something12" or "something102", how would I use a regex in javascript to return just the number parts?
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Iterating C++ vector from the end to the beginning
... |
edited Aug 7 '19 at 20:14
Chipster
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answered...