带有名称的集合Services
有多个文档:
{
serviceTitle: "Unlimited HDR Photography",
serviceDescription: "Includes unlimited daytime HDR photos and a single trip out to the property. A zip file with the bare JPG files will be emailed to you. No website or virtual tour / panoramas.",
serviceHTML: "",
sku: "hdrPhotos",
price: 100,
_id: "x5Hq7ybdS3YHmrgsa"
}
{
serviceTitle: "Twilight Photography",
serviceDescription: "Photos will be shot 15 minutes prior to sunset for dramatic lighting effects.",
serviceHTML: "",
sku: "twilightPhotos",
price: 100,
_id: "RLhjHBGicGQKgS4SQ"
}
{
serviceTitle: "Video Clips",
serviceDescription: "We will come in with professional video equipment and shoot numerous video clips of the property. The video files will then be uploaded to your Single Property Website provider.",
serviceHTML: "",
sku: "videoClips",
price: 175,
_id: "uBZSeNWa4zZNMa8z9"
}
假设我想要可以显示每个不同服务的 serviceDescription 和价格的助手。
Template.myTemplate.helpers({
hdrPhotosServiceDescription: function(){
return Services.findOne({"sku": "hdrPhotos"}, { serviceDescription:1, _id:0}).serviceDescription
},
hdrPhotosPrice: function(){
return Services.findOne({"sku": "hdrPhotos"}, { price:1, _id:0}).price
},
twilightPhotosServiceDescription: function(){
return Services.findOne({"sku": "twilightPhotos"}, { serviceDescription:1, _id:0}).serviceDescription
},
twilightPhotosPrice: function(){
return Services.findOne({"sku": "twilightPhotos"}, { price:1, _id:0}).price
},
videoClipsServiceDescription: function(){
return Services.findOne({"sku": "videoClips"}, { serviceDescription:1, _id:0}).serviceDescription
},
videoClipsPrice: function(){
return Services.findOne({"sku": "videoClips"}, { price:1, _id:0}).price
}
});
这个例子只展示了三个不同的服务,并且希望每个服务的两个属性都有助手。
{{hdrPhotosServiceDescription}}, {{hdrPhotosPrice}}, {{twilightPhotosServiceDescription}}, {{twilightPhotosPrice}}, {{videoClipsServiceDescription}}, {{videoClipsPrice}}
如果每项服务有 10 个不同的属性,并且我需要每个属性的助手并且我有 30 个不同的服务,该怎么办?这样做需要我编写和定义 300 个不同的助手。
有没有更简单的方法来做到这一点?此外,由于我网站的结构方式,我不能#each
像 Meteor 手册那样使用它来Posts
收集它。