大约有 37,000 项符合查询结果（耗时：0.0385秒） [XML]
Rails create or update magic?
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Won't assign_or_new return the first row in the table if it exists and then that row will get updated? It seems to be doing that for me.
– steve klein
Apr 27 '15 at 17:13
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Case-insensitive search in Rails model
... an Arel example of a case-insensitive search:
Product.where(Product.arel_table[:name].matches('Blue Jeans'))
The advantage of this type of solution is that it is database-agnostic - it will use the correct SQL commands for your current adapter (matches will use ILIKE for Postgres, and LIKE for e...
How do you easily horizontally center a using CSS? [duplicate]
...nd IE9 is completely destroyed ;)
Check the current Browser compatibility table for flexbox
Single element
.container {
display: flex;
justify-content: center;
}
<div class="container">
<img src="http://placehold.it/100x100">
</div>
Multiple elements but c...
How to change tab size on GitHub?
... https://github.com/*
// ==/UserScript==
document.querySelectorAll('table').forEach(t => { t.dataset.tabSize = 2 });
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Base64 encoding and decoding in client-side Javascript
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@OliverSalzburg Even less generate code table :) : var g={},k=String.fromCharCode,i;for(i=0;i<64;)g[k(i>61?(i&1)*4|43:i+[65,71,-4][i/26&3])]=i++;
– Mike
Jan 11 '16 at 22:58
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How do I run a rake task from Capistrano?
...hen, from /rails_root/, you can run:
cap staging rake:invoke task=rebuild_table_abc
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Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]
... order to run a static initializer block which maps the peer to a database table. The static block was not executed on this call. However, upon calling Class.forName("..."); for the peer class the static block was executed. +1 for a good explanation and educating me as to why I ran into this issue!
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How to check if a string is a valid hex color representation?
..., you can prefix number literals to get a number in other radii.
Here's a table for clarification:
╭─────────────┬────────────┬────────┬───────────────────╮
│ Radix │ Charact...
How do I parse XML in Python?
...ing in the file using readlines.
The relevant metrics can be found in the table below, copied from the cElementTree website:
library time space
xml.dom.minidom (Python 2.1) 6.3 s 80000K
gnosis.objectify 2.0 s 22000k
xml.dom.minidom (Python 2.4) 1...
RAW POST using cURL in PHP
...t raw data to. That page records all raw data it receives into a database table. There are no new rows at all. Do you know if anything has changed here since '09?
– James
Oct 24 '13 at 13:50
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