blog handler optimized, blog user handler created
This commit is contained in:
Dario Bösch
@@ -1,8 +1,8 @@
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note
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description: "Request handler related to /blogs."
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author: "Dario B<>sch <daboesch@student.ethz.ch>"
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date: "$Date: 2015-05-18 13:49:99 +0100 (lun., 18 mai 2015) $"
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revision: "$966167$"
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date: "$Date: 2015-05-18 13:49:00 +0100 (lun., 18 mai 2015) $"
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revision: "$9661667$"
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class
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BLOG_HANDLER
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@@ -64,114 +64,128 @@ feature -- HTTP Methods
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-- <Precursor>
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local
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l_page: CMS_RESPONSE
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s: STRING
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n: CMS_NODE
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lnk: CMS_LOCAL_LINK
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page_number:NATURAL_16
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page_number:NATURAL_32
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do
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-- At the moment the template is hardcoded, but we can
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-- get them from the configuration file and load them into
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-- the setup class.
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--Check if a page is given, if not start with page 1
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if req.path_info.ends_with_general ("/blogs") then
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-- No page number given, set to 0
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page_number := 1
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else
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-- Read page number from get variable
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page_number := page_number_path_parameter (req)
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end
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-- Ensure that page is never 0 (happens if /blogs/ is routed and then "" interpreted as 0)
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if page_number = 0 then page_number := 1 end
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-- Read the page number from get variable
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page_number := page_number_path_parameter (req)
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create {GENERIC_VIEW_CMS_RESPONSE} l_page.make (req, res, api)
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l_page.add_variable (node_api.nodes, "nodes")
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-- Output the title. If more than one page, also output the current page number
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create s.make_from_string ("<h2>Blog")
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if more_than_one_page then
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s.append (" (Page " + page_number.out + " of " + pages.out + ")")
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-- Get the posts from the current page (limited by entries per page)
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end
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s.append ("</h2>")
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-- Get the posts from the current page (given by page number and entries per page)
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if attached node_api.blogs_order_created_desc_limited (entries_per_page, (page_number-1) * entries_per_page) as lst then
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-- List all posts of the blog
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s.append ("<ul class=%"cms_blog_nodes%">%N")
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across
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lst as ic
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loop
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n := ic.item
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lnk := node_api.node_link (n)
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s.append ("<li class=%"cms_type_"+ n.content_type +"%">")
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-- Output the creation date
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s.append (creation_date_html(n))
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-- Output the author of the post
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s.append (author_html(n))
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-- Output the title of the post as a link (to the detail page)
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s.append (title_html(n, l_page))
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-- Output the summary of the post and a more link to the detail page
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s.append (summary_html(n, l_page))
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s.append ("</li>%N")
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end
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-- End of post list
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s.append ("</ul>%N")
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-- Pagination
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s.append (pagination_html(page_number))
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--end
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end
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l_page.set_main_content (s)
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l_page.set_main_content (main_content_html(page_number, l_page))
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l_page.add_block (create {CMS_CONTENT_BLOCK}.make ("nodes_warning", Void, "/blogs/ is not yet fully implemented<br/>", Void), "highlighted")
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l_page.execute
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end
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feature {NONE} -- Query
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feature -- Query
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posts (page_number: NATURAL_32) : LIST[CMS_NODE]
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-- The posts to list on the given page
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do
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Result := node_api.blogs_order_created_desc_limited (entries_per_page, (page_number-1) * entries_per_page)
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end
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more_than_one_page : BOOLEAN
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-- Checks if all posts fit on one page (FALSE) or if more than one page is needed (TRUE)
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do
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Result := entries_per_page < node_api.blogs_count
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Result := entries_per_page < total_entries
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end
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pages : NATURAL_16
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pages : NATURAL_32
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-- Returns the number of pages needed to display all posts
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require
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entries_per_page > 0
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local
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tmp: REAL_32
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do
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tmp := node_api.blogs_count.to_real / entries_per_page.to_real;
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Result := tmp.ceiling.to_natural_16
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tmp := total_entries.to_real_32 / entries_per_page.to_real_32;
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Result := tmp.ceiling.to_natural_32
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end
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page_number_path_parameter (req: WSF_REQUEST): NATURAL_16
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-- Returns the page number from the path /blogs/{page}. It's an unsigned integere since negative pages are not allowed
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page_number_path_parameter (req: WSF_REQUEST): NATURAL_32
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-- Returns the page number from the path /blogs/{page}. It's an unsigned integer since negative pages are not allowed
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local
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s: STRING
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do
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Result := 1 -- default if not get variable is set
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if attached {WSF_STRING} req.path_parameter ("page") as p_page then
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s := p_page.value
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if s.is_natural_16 then
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Result := s.to_natural_16
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if s.is_natural_32 then
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if s.to_natural_32 > 1 then
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Result := s.to_natural_32
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end
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end
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end
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end
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feature {NONE} -- HTML Output
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total_entries : NATURAL_32
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-- Returns the number of total entries/posts
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do
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Result := node_api.blogs_count.to_natural_32
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end
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feature -- HTML Output
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main_content_html (page_number: NATURAL_32; page: CMS_RESPONSE) : STRING
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-- Return the content of the page as a html string
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local
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n: CMS_NODE
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lnk: CMS_LOCAL_LINK
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do
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-- Output the title. If more than one page, also output the current page number
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create Result.make_from_string (page_title_html(page_number))
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-- Get the posts from the current page (given by page number and entries per page)
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if attached posts(page_number) as lst then
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-- List all posts of the blog
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Result.append ("<ul class=%"cms_blog_nodes%">%N")
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across
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lst as ic
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loop
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n := ic.item
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lnk := node_api.node_link (n)
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Result.append ("<li class=%"cms_type_"+ n.content_type +"%">")
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-- Output the creation date
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Result.append (creation_date_html(n))
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-- Output the author of the post
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Result.append (author_html(n))
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-- Output the title of the post as a link (to the detail page)
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Result.append (title_html(n, page))
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-- Output the summary of the post and a more link to the detail page
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Result.append (summary_html(n, page))
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Result.append ("</li>%N")
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end
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-- End of post list
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Result.append ("</ul>%N")
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-- Pagination
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Result.append (pagination_html(page_number))
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--end
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end
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end
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page_title_html (page_number: NATURAL_32) : STRING
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-- Returns the title of the page as a html string. It shows the current page number
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do
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create Result.make_from_string ("<h2>Blog")
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if more_than_one_page then
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Result.append (" (Page " + page_number.out + " of " + pages.out + ")")
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-- Get the posts from the current page (limited by entries per page)
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end
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Result.append ("</h2>")
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end
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creation_date_html (n: CMS_NODE) : STRING
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-- returns the creation date. At the moment hard coded as html
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@@ -227,10 +241,10 @@ feature {NONE} -- HTML Output
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end
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end
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pagination_html (page_number: NATURAL_16) : STRING
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pagination_html (page_number: NATURAL_32) : STRING
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-- returns a html string with the pagination links (if necessary)
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local
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tmp: NATURAL_16
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tmp: NATURAL_32
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do
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Result := ""
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if more_than_one_page then
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