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# FAQ ### Looking for free support? http://support.iris-go.com https://kataras.rocket.chat/channel/iris ### Looking for previous versions? https://github.com/kataras/iris#version ### Should I upgrade my Iris? Developers are not forced to upgrade if they don't really need it. Upgrade whenever you feel ready. > Iris uses the [vendor directory](https://docs.google.com/document/d/1Bz5-UB7g2uPBdOx-rw5t9MxJwkfpx90cqG9AFL0JAYo) feature, so you get truly reproducible builds, as this method guards against upstream renames and deletes. **How to upgrade**: Open your command-line and execute this command: `go get -u github.com/kataras/iris`. For further installation support, please click [here](http://support.iris-go.com/d/16-how-to-install-iris-web-framework). ### About our new home page http://iris-go.com Thanks to [Santosh Anand](https://github.com/santoshanand) the http://iris-go.com has been upgraded and it's really awesome! [Santosh](https://github.com/santoshanand) is a freelancer, he has a great knowledge of nodejs and express js, Android, iOS, React Native, Vue.js etc, if you need a developer to find or create a solution for your problem or task, please contact with him. The amount of the next two or three donations you'll send they will be immediately transferred to his own account balance, so be generous please! Read more at https://github.com/kataras/iris/blob/master/HISTORY.md Former-commit-id: eec2d71bbe011d6b48d2526eb25919e36e5ad94e
62 lines
1.9 KiB
Go
62 lines
1.9 KiB
Go
// this example will show you how you can set per-request data for a template outside of the main handler which calls
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// the .Render, via middleware.
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//
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// Remember: .Render has the "binding" argument which can be used to send data to the template at any case.
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package main
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import (
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"time"
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"github.com/kataras/iris"
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"github.com/kataras/iris/context"
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"github.com/kataras/iris/view"
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)
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const (
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DefaultTitle = "My Awesome Site"
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DefaultLayout = "layouts/layout.html"
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)
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func main() {
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app := iris.New()
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// output startup banner and error logs on os.Stdout
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// set the view engine target to ./templates folder
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app.AttachView(view.HTML("./templates", ".html").Reload(true))
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app.Use(func(ctx context.Context) {
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// set the title, current time and a layout in order to be used if and when the next handler(s) calls the .Render function
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ctx.ViewData("Title", DefaultTitle)
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now := time.Now().Format(ctx.Application().ConfigurationReadOnly().GetTimeFormat())
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ctx.ViewData("CurrentTime", now)
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ctx.ViewLayout(DefaultLayout)
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ctx.Next()
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})
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app.Get("/", func(ctx context.Context) {
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ctx.ViewData("BodyMessage", "a sample text here... setted by the route handler")
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if err := ctx.View("index.html"); err != nil {
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ctx.Application().Log(err.Error())
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}
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})
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app.Get("/about", func(ctx context.Context) {
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ctx.ViewData("Title", "My About Page")
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ctx.ViewData("BodyMessage", "about text here... setted by the route handler")
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// same file, just to keep things simple.
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if err := ctx.View("index.html"); err != nil {
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ctx.Application().Log(err.Error())
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}
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})
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// http://localhost:8080
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// http://localhost:8080/about
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app.Run(iris.Addr(":8080"))
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}
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// Notes: ViewData("", myCustomStruct{}) will set this myCustomStruct value as a root binding data,
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// so any View("other", "otherValue") will probably fail.
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// To clear the binding data: ctx.Set(ctx.Application().ConfigurationReadOnly().GetViewDataContextKey(), nil)
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