大约有 5,700 项符合查询结果（耗时：0.0218秒） [XML]
Using Rails serialize to save hash to database
...
Exact implementation will depend on your database, but PostgreSQL now has json and jsonb columns which can natively store your hash/object data and allow you to query against the JSON with ActiveRecord!
change your migration and you're done.
class Migration0001
def change
add_column :users,...
How to sort an array based on the length of each element?
...d"];
array.sort(function(a, b){return b.length - a.length});
console.log(JSON.stringify(array, null, '\t'));
For ascending sort order: a.length - b.length
For descending sort order: b.length - a.length
ES6 solution
Attention: not all browsers can understand ES6 code!
In ES6 we can use an a...
What's the difference between require and require-dev? [duplicate]
... @ScottDavidTesler this package the package you provide in your composer.json file like "require-dev": { // this package('s) }
– Rahil Wazir
Jun 25 '14 at 13:06
9
...
How to specify Composer install path?
... "package": {
"name": "sfGuardPlugin",
So, your composer.json should look like this:
{
"config": {
"vendor-dir": "plugins"
},
"repositories": [
{
"type": "package",
"package": {
"name": "sfGuardPlugin",
...
In a javascript array, how do I get the last 5 elements, excluding the first element?
...
cutOffFirstAndLastFive([1, 55, 77, 88]);
console.log(
'Tests:',
JSON.stringify(cutOffFirstAndLastFive([1, 55, 77, 88])),
JSON.stringify(cutOffFirstAndLastFive([1, 55, 77, 88, 99, 22, 33, 44])),
JSON.stringify(cutOffFirstAndLastFive([1]))
);
...
How to generate a Dockerfile from an image?
...g.WorkingDir}}WORKDIR {{.}}{{end}}
{{with .Config.Entrypoint}}ENTRYPOINT {{json .}}{{end}}
{{with .Config.Cmd}}CMD {{json .}}{{end}}
{{with .Config.OnBuild}}ONBUILD {{json .}}{{end}}' "$1"
I use this as part of a script to rebuild running containers as images:
https://github.com/docbill/docker-sc...
ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...ucene solution needs to be sharded. Also, with the advancement of HTTP and JSON as ubiquitous APIs, it means that a solution that many different systems with different languages can easily be used.
This is why I went ahead and created ElasticSearch. It has a very advanced distributed model, speaks...
How to construct a REST API that takes an array of id's for the resources
...in requests, while the service responses should be serialized using XML or JSON. Are there any particular reasons why you don't consider my approach to be REST?
– Florin Dumitrescu
Dec 28 '10 at 15:40
...
廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ew
0:web Connected Primary/Secondary UpToDate/UpToDate C r----
3.2挂载使用
mke2fs -j -L DRBD /dev/drbd0 # 仅在一个节点执行
mkdir /mnt/drbd
mount /dev/drbd0 /mnt/drbd
如果之前提升二个节点都为主资源时,在这个 /mnt/drbd
目录下同时读写可能会有IO异常,导...
TypeError: $.ajax(…) is not a function?
...ry:
$.ajax({
type: 'POST',
url: url,
data: postedData,
dataType: 'json',
success: callback
});
You had extra brackets next to $.ajax which were not needed. If you still get the error, then the jQuery script file is not loaded.
...