I see this in the code of others
fields = [ :last_name, :first_name, :order_number, :total, :order_date, :ship_date ]
Please don’t waste :
‘s and commas because as of Ruby 2, you can simply do this:
/blog/index.xml
I see this in the code of others
fields = [ :last_name, :first_name, :order_number, :total, :order_date, :ship_date ]
Please don’t waste :
‘s and commas because as of Ruby 2, you can simply do this:
Ruby has some nice ways to multi line strings. First, this one is the worst. If you are coming from Java or Javascript you might be tempted use it though.
# Do not do it this way
str = 'Lorem ipsum dolor sit amet, duo nusquam minimum id, ius suas elitr ' +
'persius eu. Mel tamquam verterem inciderint in. Solum propriae cum ut.' +
' Cum utinam nonumes nominavi eu, mazim dolor per in.' +
"\n" +
'Debet vivendo pri ei, nec hinc labore in. Duo ad vocibus oporteat ' +
'appellantur. Nibh idque no eos, mel viris partiendo ei, te pro ' +
'discere diceret. Vero aliquid quo an. Porro lobortis convenire vis ' +
'ea, copiosae epicurei percipit nam ut.'
10 Most Common Mistakes that Rails Programmers Make
Can we add using global variable in named scoped in active record?
I recently discovered a cool function in MySQL that is nice for doing group by
queries where you want to return a column with a comma separated list of data to sum up totals. I learn best from examples so let’s look a 3 table example.
Products
CREATE TABLE products (
id int(11) NOT NULL AUTO_INCREMENT,
name varchar(255) NOT NULL,
PRIMARY KEY (id)
)
Inventory Items
CREATE TABLE inventory_items (
id int(11) NOT NULL AUTO_INCREMENT,
product_id int(11) NOT NULL,
sku varchar(255) NOT NULL,
PRIMARY KEY (id)
)
Orders
CREATE TABLE orders (
id SERIAL,
inventory_item_id INTEGER NOT NULL,
amount INTEGER NOT NULL,
PRIMARY KEY (id)
)
The Freelancers’ Show on Learning
A good discussion about self directed learning. I’m definitely more of a “Just in Time” learning unless it’s a topic I’m really interested in.
If you have a large database that you frequently dump and rebuild, you might want to consider using the mysql SOURCE
command. In the past, with smaller databases, I have imported using the following method:
mysql -u root -p monkseal_development < monkseal_development.sql
However, if monkseal_development.sql
is large, there’s a way to speed this up.
mysql --max_allowed_packet=128M -u root -p monkseal_development
....
mysql> SOURCE monkseal_development.sql