英文:
Looping slice value in HTML file
问题
我已经创建了一个结构体的切片和一个切片的数组。
type blogs struct {id inttitle stringfeatured_image stringcreated_at string}
在"xyz"函数中创建了变量：
blog := blogs{}blogData := []blogs{}
赋值如下：
rows, err := db.Query("SELECT id, title, featured_image, created_at from blogs order by created_at desc limit 0,6")if err != nil {ctx.Application().Logger().Fatalf("MySQL Error fetching row %s\n", err)}for rows.Next() {rcan := rows.Scan(&id, &title, &featured_image, &created_at)blog.id = idblog.title = titleblog.featured_image = featured_imageblog.created_at = created_atblogData = append(blogData, blog)}
现在，我将"blogData"的值传递给"html"模板，并且在下面的"iterating"中出现错误：
<ul>{{ range $value := .blogData }}<li>{{$value.title}}</li>{{ end }}</ul>
错误信息：
template: master.html:18:5: executing "master.html" at <yield>: error calling yield: template: home.html:5:17: executing "home.html" at <$value.title>: title is an unexported field of struct type main.blogs
我该如何在模板中打印"title"和其他"blogData"变量的值？
如果我打印"$value"，它会以以下格式返回所有的值：
{5 This is Title img/blog.jpg 2017-07-05T10:11:30+05:30 }
但我想分别打印"title"、"featured_image"和其他日期。
非常感谢您的帮助。我正在使用"github.com/get-ion/ion"框架。
谢谢。
英文:
I have created slice of struct and an array of slice.
type blogs struct {id inttitle stringfeatured_image stringcreated_at string}
and created variable inside "xyz" function :
blog := blogs{}blogData := []blogs{}
with value as :
rows, err := db.Query("SELECT id, title, featured_image, created_at from blogs order by created_at desc limit 0,6")if err != nil {ctx.Application().Logger().Fatalf("MySQL Error fetching row %s\n", err)}for rows.Next() {rcan := rows.Scan(&id, &title, &featured_image, &created_at)blog.id = idblog.title = titleblog.featured_image = featured_imageblog.created_at = created_atblogData = append(blogData, blog)}
and now, I have passed "blogData" value to "html" template and iterating below gives error :
<ul>{{ range $value := .blogData }}<li>{{ $value.title }}</li>{{ end }}</ul>
Error :
template: master.html:18:5: executing "master.html" at <yield>: error calling yield: template: home.html:5:17: executing "home.html" at <$value.title>: title is an unexported field of struct type main.blogs
How can I print "title" and other value from blogData Variable in my template.
if I print $value , it returns all value in below format
{5 This is Title img/blog.jpg 2017-07-05T10:11:30+05:30 }
But I want to print, title , featured_image and other date separately.
Any help would be appreciated. I am using "github.com/get-ion/ion" framework
Thanks
答案1
得分: 1
要在模板上访问结构字段，它必须是导出字段。请将您的结构更新为：
type blogs struct {ID intTitle stringFeatured_image stringCreated_at string}
了解更多关于Go中的导出/未导出标识符的信息。
英文:
To access your struct field on template, it must be exported fields. Update your struct to-
type blogs struct {ID intTitle stringFeatured_image stringCreated_at string}
Read more about Exported/Unexported Identifiers In Go.
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