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Rails nested form with has_many :through, how to edit attributes of join model?
... }
}
}
}
}
Notice how linkers_attributes is actually a zero-indexed Hash with String keys, and not an Array? Well, this is because the form field keys that are sent to the server look like this:
topic[name]
topic[linkers_attributes][0][is_active]
topic[linkers_attributes][0][article...
How to shrink/purge ibdata1 file in MySQL
...oad a dump.
But you can configure MySQL so that each table, including its indexes, is stored as a separate file. In that way ibdata1 will not grow as large. According to Bill Karwin's comment this is enabled by default as of version 5.6.6 of MySQL.
It was a while ago I did this. However, to setup ...
How can I sort arrays and data in PHP?
...nother array comprising a primary key (the value) and a secondary key (its index or position):
array_walk($array, function(&$element, $index) {
$element = array($element, $index); // decorate
});
This transforms the array into this:
[
['Kale', 0], ['Kaleidoscope', 1],
['Aardvark...
Remove large .pack file created by git
...ith unwanted_filename_or_folder replaced accordingly:
git filter-branch --index-filter 'git rm -r --cached --ignore-unmatch unwanted_filename_or_folder' --prune-empty
This will remove all references to the files from the active history of the repo.
Next step, to perform a GC cycle to force all r...
What are the best practices for structuring a large Meteor app with many HTML template files? [close
...plication.js # <- subscriptions, basic Meteor.startup code.
client/index.html # <- toplevel html
client/index.js # <- and its JS
client/views/<page>.html # <- the templates specific to a single page
client/views/<page>.js # <- and the JS to h...
Is there a way to use SVG as content in a pseudo element :before or :after
... is awesome! It still doesn't work with html, but it does with svg.
In my index.html I have:
<div id="test" style="content: url(test.svg); width: 200px; height: 200px;"></div>
And my test.svg looks like this:
<svg xmlns="http://www.w3.org/2000/svg">
<circle cx="100" cy=...
Reading Xml with XmlReader in C#
...fely and predictably read in the XML stream. So if the reader is currently indexing the <Account> element, after parsing the reader will index the </Accounts> closing tag.
The parsing code looks something like this:
public class Account
{
string _accountId;
string _nameOfKin;
...
Python Pandas merge only certain columns
...umn 'Unique_External_Users' from df2 to df1 but got an error ... "None of [Index(['U', 'n', 'i', 'q', 'u', 'e', '', 'E', 'x', 't', 'e', 'r', 'n', 'a',\n 'l', '', 'U', 's', 'e', 'r', 's'],\n dtype='object')] are in the [columns]" .
– CoolDocMan
Feb 28...
MySQL: Large VARCHAR vs. TEXT?
... 512, 767, or 3072, etc, depending on version, context, and CHARACTER SET.
INDEXes are limited in how big a column can be indexed. (767 or 3072 bytes; this is version and settings dependent)
Intermediate tables created by complex SELECTs are handled in two different ways -- MEMORY (faster) or MyISA...
How to properly reuse connection to Mongodb across NodeJs application and modules
...; _db.close()
module.exports = { connectDB, getDB, disconnectDB }
./index.js
// Load MongoDB utils
const MongoDB = require('./db/mongodb')
// Load queries & mutations
const Users = require('./users')
// Improve debugging
process.on('unhandledRejection', (reason, p) => {
c...