使用Ruby on Rails 4我有一個用戶界面,用戶可以從服務器上的目錄路徑中選擇一個視頻文件。然後,他們單擊一個按鈕,該按鈕運行文件上的媒體信息,並顯示視頻的xml以及解析xml中的某些數據值,並將該值分配給@variables並將其顯示回UI頁面。這一切都是在「評估媒體」的行動/方法中完成的。當頁面加載時,它決定了這個文件是否被保存,並允許用戶將文件名,路徑和媒體信息屬性保存到mysql中的表中。當你點擊保存按鈕時,它會調用acton/method'save_file'。當我嘗試將這些變量值分配給模型類字段以插入表(在控制器內)時。值不被讀取。它只插入空值。 如何在'evaluate_media'操作中分配這些變量值,也可用於'save_file'操作或同一控制器內的任何其他操作?根據它們的設置和定義,我認爲它們在模型/控制器對象'file_alias_tfile'的範圍內是可用的。在Rails4中如何在一個控制器動作中分配變量並在另一個控制器動作中使用它的值
在這裏的「SAVE_FILE」行動是3點不同的方法,我試圖賦值:
full_path = params[:filepath2] <--This one puts a NULL into the table
src_location = @radio_button_value <--This one puts a NULL into the table
directory = "#{@dir_path_choice}" <--This one doesn't even get called into the insert script and nothing is inthe column on insert. (I don't get errors and a record does geet inserted with the other good values.)into the table
這是我的地方,我想我的變量值賦給模型SAVE_FILE動作/法碼字段:
def save_file
src_location = @radio_button_value
directory = "#{@dir_path_choice}"
full_path = params[:filepath2]
# "#{@filepathname}"
full_filename = "#{@filepath}"
alias_code = "#{@file_alias}"
validate_status = "#{@file_status}"
error_msg = "#{@file_msg}"
video_alias_match = "#{@msg_dtl1}"
audio_alias_match = "#{@msg_dtl2}"
video_format = "#{@video_format}"
video_bitrate = "#{@video_bitrate}"
video_width = "#{@video_width}"
video_height = "#{@video_height}"
video_framerate = "#{@video_framerate}"
video_aspect_ratio = "#{@video_aspectratio}"
video_scan_type = "#{@video_scantype}"
video_scan_order = "#{@video_scanorder}"
@file_alias_tfile = FileAliasTfile.new(:src_location => src_location, :directory => directory, :full_path => full_path, :full_filename => full_filename, :file_ext => '',
:assigned_status => 'Unassigned', :file_status => 'Saved', :alias_code => alias_code, :validate_status => validate_status, :error_msg => error_msg,
:video_alias_match => video_alias_match, :audio_alias_match => audio_alias_match, :video_format => video_format, :video_bitrate => video_bitrate,
:video_width => video_width, :video_height => video_height, :video_framerate => video_framerate, :video_aspect_ratio => video_aspect_ratio,
:video_scan_type => video_scan_type, :video_scan_order => video_scan_order, :video_alias_code => '', :audio_alias_code => '',
:bus_prod_initiative_id => 0, :status => 'Active', :start_date => DateTime.now.to_date, :end_date => '', :deleted_b => 0,
:created_by => 'admin', :updated_by => 'admin')
@file_alias_tfile = FileAliasTfile.create(file_alias_tfile_params)
if @file_alias_tfile.save
redirect_to mainpages_home_path, :notice => "The file alias validation has been saved."
else
redirect_to alias_mainpages_home_path, :notice => "The file alias validation has been saved."
#渲染= 「索引」 端 端
這裏是稱爲上面在SAVE_FILE的值被定義的 'evaluate_media' 方法:
DEF evaluate_media @state = 'POST' @radio_button_value =參數[:位置]
#Determine if file chosen has been saved to database yet.
@stored_file = FileAliasTfile.where(:full_path => params[:filepath2], :deleted_b => 0).first
if @stored_file.present?
@file_exists_flag = 'Y'
@file_exists_msg = 'This File and Alias has been saved in application.'
else
@file_exists_flag = 'N'
@file_exists_msg = 'This File and Alias has NOT been saved in application yet.'
end
root_dir = '/watchfolder/miniprod/hot/'
provider_dir = ""
#Store selected value for re-display on post.
@selected_filepath = params[:filepath2]
文件路徑= File.join(ROOT_DIR,provider_dir,則params [:文件路徑])
@filepath = File.join(params[:filepath2])
@media_xml = ::MediaInfo.call(@filepath) #Filepath is sent in from the index html
@alias_xml = ::AliasGenerator.call(@media_xml)
@media_xml_for = ""
@alias_xml_for = ""
REXML::Document.new(@media_xml).write(@media_xml_for, 1)
REXML::Document.new(@alias_xml).write(@alias_xml_for, 1)
alias_parse_doc = ""
media_parse_doc = ""
alias_parse_doc = REXML::Document.new(@alias_xml)
media_parse_doc = REXML::Document.new(@media_xml)
#parse Alias XML Doc
# @aliasgen_ver = alias_parse_doc.elements.each("/aliasGenerator vr=/text()") { |e| e }
@aliasgen_ver = REXML::XPath.each(alias_parse_doc, "/aliasGenerator vr=/text()") { |element| element }
@file_alias = REXML::XPath.each(alias_parse_doc, "*//alias/text()") { |element| element }
@file_status = REXML::XPath.each(alias_parse_doc, "*//error/text()") { |element| element }
@file_msg = REXML::XPath.each(alias_parse_doc, "*//error_m/text()") { |element| element }
@msg_dtl1 = REXML::XPath.each(alias_parse_doc, "*//closestvideoalias/text()") { |element| element }
@msg_dtl2 = REXML::XPath.each(alias_parse_doc, "*//closestaudioalias/text()") { |element| element }
#parse Video Media Info XML Doc
@filepathname = REXML::XPath.each(media_parse_doc, "*//Complete_name/text()") { |element| element }
@video_format = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Format/text()") { |element| element }
@video_bitrate = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Bit_rate/text()") { |element| element }
@video_width = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Width/text()") { |element| element }
@video_height = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Height/text()") { |element| element }
@video_aspectratio = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Display_aspect_ratio/text()") { |element| element }
@video_framerate = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Frame_rate/text()") { |element| element }
@video_scantype = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Scan_type/text()") { |element| element }
@video_scanorder = REXML::XPath.each(media_parse_doc, "//track[@type='Video']/Scan_order/text()") { |element| element }
#parse Audio Media Info XML Doc
# @audio_track = REXML::XPath.each(media_parse_doc, "//track[@type= 'Audio']/track/text()") { |element| element }
# @track_array = REXML::XPath.each(media_parse_doc,(@audio_track)) do {|track| track.elements["Bit_rate"].text }
# @bitrate = track.elements["Bit_rate"].text
# end
#@audio_tracknum = REXML::XPath.each(media_parse_doc, "//track[@type='Audio']/track streamid=/text()") { |element| element }
# @audio_format = REXML::XPath.each(media_parse_doc, "//track[@type='Audio']/Format/text()") { |element| element }
# @audio_bitrate = REXML::XPath.each(media_parse_doc, "//track[@type='Audio']/Bit_rate/text()") { |element| element }
# @audio_numchan = REXML::XPath.each(media_parse_doc, "//track[@type='Audio']/Width/text()") { |element| element }
# @audio_language = REXML::XPath.each(media_parse_doc, "//track[@type='Audio']/Display_aspect_ratio/text()") { |element| element }
render :action => :index
末
能否請您給我提供的如何我可以設置我的變量正確地跨動作傳遞和/或如何正確分配它們在插入到數據庫的例子嗎?
您的幫助表示感謝!