| rev | line source | 
| jbe/bsw@0 | 1 --[[-- | 
| jbe/bsw@0 | 2 ui.paginate{ | 
| poelzi@35 | 3   selector            = selector,        -- a selector for items from the database | 
| poelzi@35 | 4   per_page            = per_page,        -- items per page, defaults to 10 | 
| poelzi@35 | 5   container_attr      = container_attr   -- html attr for the container element | 
| poelzi@35 | 6   name                = name,            -- name of the CGI get variable, defaults to "page" | 
| poelzi@35 | 7   page                = page,            -- directly specify a page, and ignore 'name' parameter | 
| poelzi@35 | 8   content             = function() | 
| jbe/bsw@0 | 9     ...                 -- code block which should be encapsulated with page selection links | 
| jbe/bsw@0 | 10   end | 
| jbe/bsw@0 | 11 } | 
| jbe/bsw@0 | 12 | 
| jbe@1 | 13 This function preceeds and appends the output of the given 'content' function with page selection links. The passed selector will be modified to show only a limited amount ('per_page') of items. The currently displayed page will be determined directly by cgi.params, and not via the param.get(...) function, in order to pass page selections automatically to sub-views. | 
| jbe@1 | 14 | 
| jbe/bsw@0 | 15 --]]-- | 
| jbe/bsw@0 | 16 | 
| jbe/bsw@0 | 17 function ui.paginate(args) | 
| jbe/bsw@0 | 18   local selector = args.selector | 
| jbe/bsw@0 | 19   local per_page = args.per_page or 10 | 
| jbe/bsw@0 | 20   local name     = args.name or 'page' | 
| jbe/bsw@0 | 21   local content  = args.content | 
| jbe/bsw@0 | 22   local count_selector = selector:get_db_conn():new_selector() | 
| jbe/bsw@0 | 23   count_selector:add_field('count(1)') | 
| jbe/bsw@0 | 24   count_selector:add_from(selector) | 
| jbe/bsw@0 | 25   count_selector:single_object_mode() | 
| jbe/bsw@0 | 26   local count = count_selector:exec().count | 
| jbe@8 | 27   local page_count = 1 | 
| jbe@8 | 28   if count > 0 then | 
| jbe@8 | 29     page_count = math.floor((count - 1) / per_page) + 1 | 
| jbe@8 | 30   end | 
| jbe@1 | 31   local current_page = atom.integer:load(cgi.params[name]) or 1 | 
| jbe/bsw@2 | 32   if current_page > page_count then | 
| jbe/bsw@2 | 33     current_page = page_count | 
| jbe/bsw@2 | 34   end | 
| jbe/bsw@0 | 35   selector:limit(per_page) | 
| jbe/bsw@0 | 36   selector:offset((current_page - 1) * per_page) | 
| jbe/bsw@0 | 37   local id     = param.get_id_cgi() | 
| jbe/bsw@0 | 38   local params = param.get_all_cgi() | 
| jbe/bsw@0 | 39   local function pagination_elements() | 
| jbe/bsw@0 | 40     if page_count > 1 then | 
| jbe/bsw@0 | 41       for page = 1, page_count do | 
| jbe/bsw@0 | 42         if page > 1 then | 
| jbe/bsw@0 | 43           slot.put(" ") | 
| jbe/bsw@0 | 44         end | 
| jbe/bsw@0 | 45         params[name] = page | 
| jbe/bsw@0 | 46         local attr = {} | 
| jbe/bsw@0 | 47         if current_page == page then | 
| jbe/bsw@0 | 48           attr.class = "active" | 
| jbe/bsw@0 | 49         end | 
| jbe/bsw@11 | 50         local partial | 
| jbe/bsw@11 | 51         if ui.is_partial_loading_enabled() then | 
| jbe/bsw@11 | 52           partial = { | 
| jbe/bsw@11 | 53             params = { | 
| jbe/bsw@11 | 54               [name] = tostring(page) | 
| jbe/bsw@11 | 55             } | 
| jbe/bsw@11 | 56           } | 
| jbe/bsw@11 | 57         end | 
| jbe/bsw@0 | 58         ui.link{ | 
| jbe/bsw@11 | 59           attr   = attr, | 
| jbe/bsw@0 | 60           module = request.get_module(), | 
| jbe/bsw@0 | 61           view   = request.get_view(), | 
| jbe/bsw@0 | 62           id     = id, | 
| jbe/bsw@0 | 63           params = params, | 
| jbe/bsw@11 | 64           text   = tostring(page), | 
| jbe/bsw@11 | 65           partial = partial | 
| jbe/bsw@0 | 66         } | 
| jbe/bsw@0 | 67       end | 
| jbe/bsw@0 | 68     end | 
| jbe/bsw@0 | 69   end | 
| jbe/bsw@0 | 70   ui.container{ | 
| poelzi@35 | 71     attr = args.container_attr or { class = 'ui_paginate' }, | 
| jbe/bsw@0 | 72     content = function() | 
| jbe/bsw@0 | 73       ui.container{ | 
| jbe/bsw@0 | 74         attr = { class = 'ui_paginate_head ui_paginate_select' }, | 
| jbe/bsw@0 | 75         content = pagination_elements | 
| jbe/bsw@0 | 76       } | 
| jbe/bsw@0 | 77       ui.container{ | 
| jbe/bsw@0 | 78         attr = { class = 'ui_paginate_content' }, | 
| jbe/bsw@0 | 79         content = content | 
| jbe/bsw@0 | 80       } | 
| jbe/bsw@0 | 81       ui.container{ | 
| jbe/bsw@0 | 82         attr = { class = 'ui_paginate_foot ui_paginate_select' }, | 
| jbe/bsw@0 | 83         content = pagination_elements | 
| jbe/bsw@0 | 84       } | 
| jbe/bsw@0 | 85     end | 
| jbe/bsw@0 | 86   } | 
| jbe/bsw@0 | 87 end |