RoR - 带链接的图像，错误显示 url-for 中的 ID，但不在 image_tag 中？
我在部分中有以下代码：
<%= image_tag(url_for(:controller => "campaigns", :action=>'coupon_preview_text',
:id => campaign_id, :width=>width), {
:title=>@campaign_name,
:onclick=>"showBigCouponPreview(" + campaign_id.to_s + ")",
:alt => @campaign_name }) %>
当我有一个常规的 Rails 操作显示它时，它工作 100% 正常，例如，我得到了
<img title="Click for Largest image"
src="/campaigns/coupon_preview_text/1075?width=120"
onclick="showBigCouponPreview(1075)"
alt="Click for Largest image">
，但是当我通过 ajax 调用（对于同一记录）使用相同的部分（具有 image_tag）时）使用 rjs 到 page.replace_html 我得到的部分
<img title="Click for Largest image"
src="/campaigns/coupon_preview_text/1075?width=120"
onclick="showBigCouponPreview(#<Campaign:0x7fe795a32210>)"
alt="Click for Largest image">
即记录 id - 1075 - 在 src 属性中显示正常，但在 onlick 操作中显示不正常？？？ 由于某种原因，我不知道 ajax 调用何时使用 rjs 来替换该部分，对于同一记录，它的行为似乎有所不同。
显然，获取和显示记录 ID（而不是单击部分的内部对象 ID）存在某种问题。
I have the following code in a partial:
<%= image_tag(url_for(:controller => "campaigns", :action=>'coupon_preview_text',
:id => campaign_id, :width=>width), {
:title=>@campaign_name,
:onclick=>"showBigCouponPreview(" + campaign_id.to_s + ")",
:alt => @campaign_name }) %>
It's working 100% ok when I have a regular rails action display it, e.g. I get
<img title="Click for Largest image"
src="/campaigns/coupon_preview_text/1075?width=120"
onclick="showBigCouponPreview(1075)"
alt="Click for Largest image">
but when I am using the same partial (that has the image_tag) through an ajax call (for the same record) that used rjs to page.replace_html the partial I am getting
<img title="Click for Largest image"
src="/campaigns/coupon_preview_text/1075?width=120"
onclick="showBigCouponPreview(#<Campaign:0x7fe795a32210>)"
alt="Click for Largest image">
i.e. the record id - 1075 - shows ok in the src attribute but not in the onlick action ???
For some reason that I don't know when the ajax call use rjs to replace that partial it seems to behave differently for the same record.
Clearly there is some sort of issue about getting and showing the records ID as opposed to its internal object ID for the on-click part.
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无论您在 ajax 调用中的何处设置
campaign_id，都必须将其设置为实际的Campaign对象，而不是该对象的 ID。它适用于:id参数的原因是 Rails 知道使用对象的 ID，而.to_s则不知道。Wherever you're setting
campaign_idin your ajax call, you must be setting it to your actualCampaignobject rather than the object's ID. The reason it works for the:idparameter is because Rails knows to use the object's ID, whereas.to_sdoesn't.