So I am doing a simple if check on a bool from a struct but it doesn't seem to work, it just stop rendering the HTML.
So the following struct is like this:
type Category struct {
ImageURL string
Title string
Description string
isOrientRight bool
}
Now I have a slice of that Category struct which I get to display with a range.
Bellow is an example of one struct:
juiceCategory := Category{
ImageURL: "lemon.png",
Title: "Juices and Mixes",
Description: `Explore our wide assortment of juices and mixes expected by
today's lemonade stand clientelle. Now featuring a full line of
organic juices that are guaranteed to be obtained from trees that
have never been treated with pesticides or artificial
fertilizers.`,
isOrientRight: true,
}
I've tried multiple ways, like below, but none of them worked:
{{range .Categories}}
{{if .isOrientRight}}
Hello
{{end}}
{{if eq .isOrientRight true}}
Hello
{{end}}
<!-- Print nothing -->
{{ printf .isOrientRight }}
{{end}}
You have to export all the fields you want to access from templates: change its first letter to capital I
:
type Category struct {
ImageURL string
Title string
Description string
IsOrientRight bool
}
And every reference to it:
{{range .Categories}}
{{if .IsOrientRight}}
Hello
{{end}}
{{if eq .IsOrientRight true}}
Hello
{{end}}
<!-- Print nothing -->
{{ printf .IsOrientRight }}
{{end}}
Every unexported field can only be accessed from the declaring package. Your package declares the Category
type, and text/template
and html/template
are different packages, so you need to export it if you want those packages to have access to it.
Template.Execute()
returns an error, should you have stored / examined its return value, you would have found this out immediately, as you'd get an error similar to this one:
template: :2:9: executing "" at <.isOrientRight>: isOrientRight is an unexported field of struct type main.Category
See a working example of your code on the Go Playground.
If life inflicts templates on you which for some reason have lower-case variable names - perhaps constructed from a Pug template source that is also used for other things - there is a way around this issue...
You can use a map[string]interface{}
to hold the values to be passed into the template, so in the example above:
juiceCategory := map[string]interface{}{
"ImageURL": "lemon.png",
"Title": "Juices and Mixes",
"Description": `Explore our wide assortment of juices and mixes expected by
today's lemonade stand clientelle. Now featuring a full line of
organic juices that are guaranteed to be obtained from trees that
have never been treated with pesticides or artificial
fertilizers.`,
"isOrientRight": true,
}
and now there is no need to change your template...
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