diff --git a/app.go b/app.go index 25ea2a04..b29bb962 100644 --- a/app.go +++ b/app.go @@ -207,6 +207,72 @@ func Router(rootpath string, c ControllerInterface, mappingMethods ...string) *A return BeeApp } +// UnregisterFixedRoute unregisters the route with the specified fixedRoute. It is particularly useful +// in web applications that inherit most routes from a base webapp via the underscore +// import, and aim to overwrite only certain paths. +// The method parameter can be empty or "*" for all HTTP methods, or a particular +// method type (e.g. "GET" or "POST") for selective removal. +// +// Usage (replace "GET" with "*" for all methods): +// beego.UnregisterFixedRoute("/yourpreviouspath", "GET") +// beego.Router("/yourpreviouspath", yourControllerAddress, "get:GetNewPage") +func UnregisterFixedRoute(fixedRoute string, method string) *App { + subPaths := splitPath(fixedRoute) + if method == "" || method == "*" { + for _, m := range HTTPMETHOD { + if _, ok := BeeApp.Handlers.routers[m]; !ok { + continue + } + if BeeApp.Handlers.routers[m].prefix == strings.Trim(fixedRoute, "/ ") { + delete(BeeApp.Handlers.routers, m) + return BeeApp + } + findAndRemoveTree(subPaths, BeeApp.Handlers.routers[m], m) + } + return BeeApp + } + // Single HTTP method + um := strings.ToUpper(method) + if _, ok := BeeApp.Handlers.routers[um]; ok { + if BeeApp.Handlers.routers[um].prefix == strings.Trim(fixedRoute, "/ ") { + delete(BeeApp.Handlers.routers, um) + return BeeApp + } + findAndRemoveTree(subPaths, BeeApp.Handlers.routers[um], um) + } + return BeeApp +} + +func findAndRemoveTree(paths []string, entryPointTree *Tree, method string) { + for i := range entryPointTree.fixrouters { + if entryPointTree.fixrouters[i].prefix == paths[0] { + if len(paths) == 1 { + if len(entryPointTree.fixrouters[i].fixrouters) > 0 { + // If the route had children subtrees, remove just the functional leaf, + // to allow children to function as before + if len(entryPointTree.fixrouters[i].leaves) > 0 { + entryPointTree.fixrouters[i].leaves[0] = nil + entryPointTree.fixrouters[i].leaves = entryPointTree.fixrouters[i].leaves[1:] + } + } else { + // Remove the *Tree from the fixrouters slice + entryPointTree.fixrouters[i] = nil + + if i == len(entryPointTree.fixrouters)-1 { + entryPointTree.fixrouters = entryPointTree.fixrouters[:i] + } else { + entryPointTree.fixrouters = append(entryPointTree.fixrouters[:i], entryPointTree.fixrouters[i+1:len(entryPointTree.fixrouters)]...) + } + } + return + } + findAndRemoveTree(paths[1:], entryPointTree.fixrouters[i], method) + } + } + // No match + return +} + // Include will generate router file in the router/xxx.go from the controller's comments // usage: // beego.Include(&BankAccount{}, &OrderController{},&RefundController{},&ReceiptController{})