Golang Context.ParamInt方法代码示例

// HandleShow displays a single story
func HandleShow(context router.Context) error {

	// Find the story
	story, err := stories.Find(context.ParamInt("id"))
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect requests to the canonical url
	if context.Path() != story.URLShow() {
		return router.Redirect(context, story.URLShow())
	}

	// Find the comments for this story
	// Fetch the comments
	q := comments.Where("story_id=?", story.Id).Order(comments.RankOrder)
	rootComments, err := comments.FindAll(q)
	if err != nil {
		return router.InternalError(err)
	}

	// Render the template
	view := view.New(context)
	view.AddKey("story", story)
	view.AddKey("meta_title", story.Name)
	view.AddKey("meta_desc", story.Summary)
	view.AddKey("meta_keywords", story.Name)
	view.AddKey("comments", rootComments)

	return view.Render()
}

// HandleUpdate handles the POST of the form to update a page
func HandleUpdate(context router.Context) error {

	// Find the page
	page, err := pages.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise update page
	err = authorise.ResourceAndAuthenticity(context, page)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the page from params
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}
	err = page.Update(params.Map())
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect to page
	return router.Redirect(context, page.URLShow())
}

// HandleUpdate handles the POST of the form to update a story
func HandleUpdate(context router.Context) error {

	// Find the story
	story, err := stories.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise update story
	err = authorise.ResourceAndAuthenticity(context, story)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the story from params
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}
	err = story.Update(params.Map())
	if err != nil {
		return err // Create returns a router.Error
	}

	err = updateStoriesRank()
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect to story
	return router.Redirect(context, story.URLShow())
}

// HandleShow serve a get request at /users/1
func HandleShow(context router.Context) error {

	// Find the user
	user, err := users.Find(context.ParamInt("id"))
	if err != nil {
		context.Logf("#error parsing user id: %s", err)
		return router.NotFoundError(err)
	}

	userMeta := fmt.Sprintf("%s – %s", user.Name, user.Summary)

	// Set up view
	view := view.New(context)

	// Find the first image which matches this user
	image, err := images.Find(user.ImageID)
	if err == nil {
		// only add image key if we have one
		view.AddKey("image", image)
	}

	// Render the Template
	view.AddKey("user", user)
	view.AddKey("meta_title", userMeta)
	view.AddKey("meta_desc", userMeta)
	view.AddKey("meta_keywords", user.Keywords())
	return view.Render()

}

// HandleHome displays a list of stories using gravity to order them
// used for the home page for gravity rank see votes.go
// responds to GET /
func HandleHome(context router.Context) error {

	// Build a query
	q := stories.Query().Limit(listLimit)

	// Select only above 0 points,  Order by rank, then points, then name
	q.Where("points > 0").Order("rank desc, points desc, id desc")

	// Set the offset in pages if we have one
	page := int(context.ParamInt("page"))
	if page > 0 {
		q.Offset(listLimit * page)
	}

	// Fetch the stories
	results, err := stories.FindAll(q)
	if err != nil {
		return router.InternalError(err)
	}

	// Render the template
	view := view.New(context)
	setStoriesMetadata(view, context.Request())
	view.AddKey("page", page)
	view.AddKey("stories", results)
	view.Template("stories/views/index.html.got")

	if context.Param("format") == ".xml" {
		view.Layout("")
		view.Template("stories/views/index.xml.got")
	}

	return view.Render()

}

// HandleUpdate responds to POST /comments/update
func HandleUpdate(context router.Context) error {

	// Find the comment
	comment, err := comments.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise update comment, check auth token
	err = authorise.ResourceAndAuthenticity(context, comment)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the comment from params
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}

	// Clean params according to role
	accepted := comments.AllowedParams()
	if authorise.CurrentUser(context).Admin() {
		accepted = comments.AllowedParamsAdmin()
	}
	cleanedParams := params.Clean(accepted)

	err = comment.Update(cleanedParams)
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect to comment
	return router.Redirect(context, comment.URLShow())
}

// HandleUpdate handles POST or PUT /pages/1/update
func HandleUpdate(context router.Context) error {

	// Find the page
	page, err := pages.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise updating the page
	err = authorise.Resource(context, page)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the page from params
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}
	err = page.Update(params.Map())
	if err != nil {
		return router.InternalError(err)
	}

	// We then find the page again, and retreive the new Url, in case it has changed during update
	page, err = pages.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Redirect to page url
	return router.Redirect(context, page.Url)
}

// HandleUpdate handles the POST of the form to update a user
func HandleUpdate(context router.Context) error {

	// Find the user
	user, err := users.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise update user
	err = authorise.ResourceAndAuthenticity(context, user)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Get the params
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}

	// Clean params further for customers, they may only update email, password, key
	allowedParams := params.Map()
	u := authorise.CurrentUser(context)
	if !u.Admin() {
		//	allowedParams = params.Clean(users.AllowedParamsCustomer())
	}

	err = user.Update(allowedParams)
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect to user
	return router.Redirect(context, user.URLShow())
}

// HandleUpdate serves POST or PUT /tags/1/update
func HandleUpdate(context router.Context) error {

	// Find the tag
	tag, err := tags.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise
	err = authorise.Resource(context, tag)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the tag
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}

	err = tag.Update(params.Map())
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect to tag
	return router.Redirect(context, tag.URLShow())
}

// HandleShow displays a single story
func HandleShow(context router.Context) error {

	// Find the story
	story, err := stories.Find(context.ParamInt("id"))
	if err != nil {
		return router.InternalError(err)
	}

	// Find the comments for this story
	// Fetch the comments
	q := comments.Where("story_id=?", story.Id).Order(comments.RankOrder)
	rootComments, err := comments.FindAll(q)
	if err != nil {
		return router.InternalError(err)
	}

	// Render the template
	view := view.New(context)
	view.AddKey("story", story)
	view.AddKey("meta_title", story.Name)
	view.AddKey("meta_desc", story.Summary)
	view.AddKey("meta_keywords", story.Name)
	view.AddKey("comments", rootComments)
	view.AddKey("authenticity_token", authorise.CreateAuthenticityToken(context))

	return view.Render()
}

// HandleUpdateShow handles the POST of the form to update a file
func HandleUpdate(context router.Context) error {

	// Find the file
	file, err := files.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise update file
	err = authorise.Resource(context, file)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the file from params
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}

	// Find the to user, by querying users on username or email
	// Set the user id if found, else return 404 error, user not found

	// TODO: Make *sure* this only accepts the params we want
	err = file.Update(params.Map())
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect to file
	return router.Redirect(context, file.URLShow())
}

// HandleUpdate handles the POST of the form to update a post
func HandleUpdate(context router.Context) error {

	// Find the post
	post, err := posts.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise update post
	err = authorise.Resource(context, post)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the post from params
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}
	err = post.Update(params.Map())
	if err != nil {
		return router.InternalError(err)
	}

	// Redirect to post
	return router.Redirect(context, post.URLShow())
}

// HandleUpdateShow renders the form to update a post
func HandleUpdateShow(context router.Context) error {

	// Find the post
	post, err := posts.Find(context.ParamInt("id"))
	if err != nil {
		return router.NotFoundError(err)
	}

	// Authorise update post
	err = authorise.Resource(context, post)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Find users for author details
	users, err := users.FindAll(users.Admins())
	if err != nil {
		return router.NotFoundError(err)
	}

	// Render the template
	view := view.New(context)
	view.AddKey("post", post)
	view.AddKey("users", users)
	return view.Render()
}

// HandleDownload sends a single file
func HandleDownload(context router.Context) error {

	// Find the file
	file, err := files.Find(context.ParamInt("id"))
	if err != nil {
		return router.InternalError(err)
	}

	// Authorise access to this file - only the file owners can access their own files
	err = authorise.Resource(context, file)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// If we are permitted, send the file to the user
	//w.Header().Set("Content-Type", "text/plain; charset=utf-8")
	//http.DetectContentType(data []byte) string
	h := context.Header()
	h.Set("Content-Type", "application/pgp-encrypted")
	h.Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", file.Name()))
	h.Set("Content-Transfer-Encoding", "binary")

	http.ServeFile(context, context.Request(), file.Path)
	return nil
}

// HandleUpdate handles POST or PUT /images/1/update
func HandleUpdate(context router.Context) error {

	// Find the image
	image, err := images.Find(context.ParamInt("id"))
	if err != nil {
		context.Logf("#error Error finding image %s", err)
		return router.NotFoundError(err)
	}

	// Authorise
	err = authorise.Resource(context, image)
	if err != nil {
		return router.NotAuthorizedError(err)
	}

	// Update the image
	params, err := context.Params()
	if err != nil {
		return router.InternalError(err)
	}

	err = image.Update(params.Map())
	if err != nil {
		return router.InternalError(err)
	}

	// We redirect back to source if redirect param is set
	return router.Redirect(context, image.URLUpdate())

}