大约有 40,000 项符合查询结果（耗时：0.0544秒） [XML]
How to do a LIKE query in Arel and Rails?
...
This is how you perform a like query in arel:
users = User.arel_table
User.where(users[:name].matches("%#{user_name}%"))
PS:
users = User.arel_table
query_string = "%#{params[query]}%"
param_matches_string = ->(param){
users[param].matches(query_string)
}
User.where(param_mat...
How do I install from a local cache with pip?
...p news, version 0.1.4:
Added support for an environmental variable $PIP_DOWNLOAD_CACHE which will cache package downloads, so future installations won’t require large downloads. Network access is still required, but just some downloads will be avoided when using this.
To take advantage of th...
Rails: How to change the text on the submit button in a Rails Form
i have listed my _form.html.erb file below what i would like to do is change the text on the submit button i know how to do it in html but not shure how to do it in Rails 3
...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...f the item as that's often a problem, especially when using collectionView(_:layout:sizeForItemAt:), use a custom variable with the itemSize instead.
This works best when you set self.collectionView.decelerationRate = UIScrollView.DecelerationRate.fast.
Here's a horizontal version (haven't tested ...
Simulating ENTER keypress in bash script
...ript that expects default values [value] {enter}
– AK_
Jun 11 '18 at 21:26
This only works for things like yum. Where ...
Move all files except one
... @UnixBasis, yes. Take a look at gnu.org/software/bash/manual/html_node/Pattern-Matching.html
– Juliano
Mar 22 '09 at 4:07
1
...
Find duplicate lines in a file and count how many time each line was duplicated?
...cally this is doesnt seem to be the most efficient approach (O(n log n)*avg_line_len where n is number of lines). I'm working on files that are several gigabytes large, so performance is a key issue. I wonder whether there is a tool that does just the counting in a single pass using a prefix tree (i...
Get position of UIView in respect to its superview's superview
...s you are interested in, you could do this:
static func getConvertedPoint(_ targetView: UIView, baseView: UIView)->CGPoint{
var pnt = targetView.frame.origin
if nil == targetView.superview{
return pnt
}
var superView = targetView.superview
while superView != baseView{...
What SOAP client libraries exist for Python, and where is the documentation for them? [closed]
... an error that looks like:
abort: error: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol
This was issue1424152 on the Python bug tracker. There are patches attached to the bug report that will fix this in Python 2.x and Python 3.x. The issue is already fixed.
...
Accessing console and devtools of extension's background.js
...
additionally
if you want to see content_script js file ( when "background" property is not set ) in manifest.json
"content_scripts": [{
"matches": ["<all_urls>"],
"js": ["popup.js"],
}]
"browser_action": {
"default_icon": "icon_32.png",
"...