Backend Development
Golang
Create 'x' number of html elements in the template based on the number of elements I have in the database
Create 'x' number of html elements in the template based on the number of elements I have in the database
According to the suggestion of PHP editor Apple, we can use templates to create a corresponding number of HTML elements based on the number of elements in the database. This method can effectively reduce the workload of manually writing HTML code and improve development efficiency. By dynamically generating HTML elements, we can easily realize the need to dynamically display content based on data, providing users with a more flexible and personalized web experience. This technology is very practical in web development and can greatly simplify the code writing process while improving the maintainability and scalability of the project.
Question content
I need to create an html page that displays all "Forums" that exist in the database in a .html file. Example:
<body>
{{with index . 0}}
<a href="/sID={{.Id}}">{{.Name}}<br></a>{{.Descr}}</td>
{{end}}
{{with index . 1}}
<a href="/sID={{.Id}}">{{.Name}}<br></a>{{.Descr}}
{{end}}
</body>
func index(w http.ResponseWriter, r *http.Request) {
forums := GetForumsFromDB() // return a slice of type Forum from the db
tpl.ExecuteTemplate(w, "index.html", forums)
}
type Forum struct {
Id int
Name string
Descr string
}But in this case, while writing the .html file, I need to know how many forums there are in the database. How should I handle this problem? Should I pass the html into the template along with my slices? Should I use the forum method which returns html for each forum?
Solution
Use range:
{{range .}}
<a href="/sID={{.Id}}">{{.Name}}<br></a>{{.Descr}}
{{end}}The above is the detailed content of Create 'x' number of html elements in the template based on the number of elements I have in the database. For more information, please follow other related articles on the PHP Chinese website!
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