如何打开自上次git提交以来所有已删除,修改和创建的文件,我先尝试使用git status,但很难解析,所以我发现git status --porcelain更容易解析并使用awk + vim +一些bash魔法很容易做到.
正如标题所说,我总是想知道为什么scanf必须采取address of运算符(&).
我有以下协会代码:
has_many :rates_without_dimension, :as => :rateable, :class_name => "Rate",
:dependent => :destroy, :conditions => {:dimension => nil}
has_many :raters_without_dimension, :through => :rates_without_dimension,
:source => :rater
has_one :rate_average_without_dimension, :as => :cacheable,
:class_name => "RatingCache",
:dependent => :destroy, :conditions => {:dimension => nil}
dimensions.each do |dimension|
has_many "#{dimension}_rates", :dependent => :destroy,
:conditions => {:dimension => dimension.to_s},
:class_name => "Rate",
:as => :rateable
has_many "#{dimension}_raters", :through => "#{dimension}_rates",
:source => :rater
has_one "#{dimension}_average", :as => :cacheable, :class_name => "RatingCache",
:dependent => :destroy, :conditions …Run Code Online (Sandbox Code Playgroud) 有人知道我做错了什么吗?我试图改变某些图像显示的顺序,我希望每次按下按钮时图像都会向右/左移动一个点.这是我尝试过的但没有运气.
任何帮助或见解都将得到真正的赞赏
$("#rightShift").click(function(){
$("img").hide();
var count = $("img").size();
$("img").each(function(i) {
var indexImg = count - i;
$("img:eq(indexImg)").show();
});
});
$("#leftShift").click(function(){
$("img").hide();
$("img:last").prependTo("img");
$("img").show();
});
Run Code Online (Sandbox Code Playgroud) 我正在尝试创建一个进度条向用户显示上传了多少文件,我使用的是ajaxSubmit和uploadprogress函数,但是这个函数不会更新它只是给了我100,就是这样:
这是我的JS代码:
function UploadImage(){
$('#new-post-upload-images').ajaxSubmit({
dataType: "json",
beforeSend: function(a,f,o) {
$('input.images').unwrap().css('display','none');
$('#new_post_overlay,#upload_plus,#upload_wrapper .edit-menu-post').remove();
$(".new_post_btn").attr('disabled', true);
$(".load_new_post").show();
},
uploadProgress: function(event, position, total, percentComplete) {
console.log(percentComplete + '%');
},
complete: function(XMLHttpRequest, textStatus) {
var data= XMLHttpRequest.responseText;
var jsonResponse = JSON.parse(data);
$(".load_new_post").hide();
$('#new_post_wrapper').append('<div class="edit-menu-post"><a class="delete dismiss_image dismiss icon-cancel" title="Remove"><span>Delete</span></a><a class="repos-drag icon-drag" title="Reposition"><span>Reposition</span></a></div><div style="width:100%;height:100%;background-repeat: no-repeat;background-size: cover;position: relative;" id="preview"></div>').parent().find('.bg-port').val('0px 0px');
$('#preview').css('background-position', '0 0').css('background-image', 'url(' + jsonResponse[0]["path"] + ')');
var ids = $.map(jsonResponse, function(n){
return n["id"];
});
$('#uploaded_images_ids').val(ids.join("#"));
$(".new_post_btn").attr('disabled', false);
}
});
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}
这是我的Ruby和HTML代码: …
我有一个带有子域的应用程序,我希望能够在添加子域时连接到所有子域的WebSocket
cable/config.ru
ActionCable.server.config.allowed_request_origins = ["domain.com",
"sub1.domain.com", "sub1.domain.com"]
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它工作正常,但我如何设置所有子域的别名,如下所示:
"[*.domain.com]"
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字符"*"不起作用.
我有以下代码段:
class Product
after_commit :do_something, on: %i(update create)
def do_something
if # update
...
else # create
...
end
end
end
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如何知道在此提交后触发了什么事件?
提交之后请不要告诉我有2个:
after_commit :do_something_on_update, on: :update
after_commit :do_something_on_create, on: :create
Run Code Online (Sandbox Code Playgroud) ruby activerecord ruby-on-rails ruby-on-rails-4 rails-activerecord