Firefighting On Rails

A discussion of the worst code I ever wrote, and it's positive impact on my community. At the core, don't get so caught up in best practices that you forget to solve the problem you set out to code for.

Transcript

1. Firefighting on Rails Tuesday, May 7, 13
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11. Career/Volunteer Tuesday, May 7, 13
12. BCFPD 14 Engines, 9 Tankers, 12 Trucks, 2 Squads, 5 Boats, 2 Command, 1 HazMat 250 firefighters, 14 Stations, 492 Square Miles Tuesday, May 7, 13
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14. Pager function • Alerts to your station tones • limited modes of operation • Fits on a normal car visor Tuesday, May 7, 13
15. Pager Problems • Loud • Audio Only • Limited bandwidth • Programmable only by a technician Tuesday, May 7, 13
16. Dispatch Tuesday, May 7, 13
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19. CAD Radio Tones Web Status Board Tuesday, May 7, 13
20. CAD Radio Tones Web Status Board Tuesday, May 7, 13
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23. CAD Radio Tones Web Status Board The Solution Tuesday, May 7, 13
24. Requirements 1 Weekend to build No exposed data ASAP info delivery Decision Makers vs User Compulsion Computer Literacy Tuesday, May 7, 13
25. The Toolbox Tuesday, May 7, 13
26. The Plan Web Status Board Polling Job w/ Mechanize Subscription Config Dashboard Incident Data Notifications w/ Links Tuesday, May 7, 13
27. def fetch_call_info(incident_number) agent = Mechanize.new login(agent) page = agent.get("https://istatus.gocolumbiamo.com/DisplayCall.php?Incid=#{incident_number notes = page.parser.xpath("/html/body/table/tr[3]/table/tr/td/table/tr").map{|node| {:time=>node.children[0].text,:text=>node.children[1].text.gsub("\n","")}} if notes.size == 0 page = agent.get("https://istatus.gocolumbiamo.com/DisplayFireCall.php? Incid=#{incident_number}") notes = page.parser.xpath("/html/body/table/tr[3]/table/tr/td/table/tr").map{|node| {:time=>node.children[0].text,:text=>node.children[1].text.gsub("\n","")}} end call_info = {:id=>incident_number} address = page.links_with(:href=>/SearchDStatsSubmit\.php\?Address/).first.text call_info[:address] = address call_info[:nature] = page.parser.xpath("/html/body/table/tr[1]/td[1]/table/tr[3]/ td").text.strip.split("-").last call_info[:apparatus] = page.parser.xpath("/html/body/table/tr[1]/td[2]/table/tr/td[1]").m c| c.text.gsub("\n","").strip} call_info[:raw_notes] = notes.map{|n| "#{n[:time]} #{n[:text]}"}.join("|") spliced_notes = {} notes.select{|n| n[:text] =~ /[\(\[]\d+-\d+[\)\]]$/}.each do |note| note_text = note[:text] note_text_arr = note_text.split(/\s/) token = note_text_arr.delete_at(note_text_arr.size - 1) final_text = note_text_arr.join(" ") if spliced_notes[token].nil? spliced_notes[token] = [{:time=>note[:time],:text=>final_text}] else spliced_notes[token] << {:time=>note[:time],:text=>final_text} end end call_info[:notes] = {:pro_qa=>notes.select{|n| n[:text] =~ /^ProQA/}, Tuesday, May 7, 13
28. class Incident include MongoMapper::Document # ... def formatted_message @msg ||= "#{address[0,25]}\n#{nature[0,15]}\n #{cropped_apparatus_list[0,12]}\n #{cross_street_1[0,12]}\n #{cross_street_2[0,12]}\n Map: #{build_map_url}\n Notes: #{build_notes_url}" end # ... end Tuesday, May 7, 13
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30. Subscription Control Tuesday, May 7, 13
31. %h2== Welcome to Watchman, #{current_user.email} -if @status_record.active? %div.status{:style=>"background-color:green;color:white;width:300px;padding: 5px;font-weight:bold;"} Watchman is Active -else %div.status{:style=>"background-color:red;color:white;width:300px;padding:5px;font- weight:bold;"} Watchman is Down %br #my_subscriptions{:style=>"border: 1px solid black;padding:10px;width:300px;"} %h2 My current subscriptions -current_user.subscriptions.each do |name| .subscription= name =button_to "Remove","/cancel_subscription/#{name}" %br =form_tag subscriptions_path do =select_tag 'apparatus', options_for_select(Apparatus.county) =submit_tag "subscribe" %br Tuesday, May 7, 13
32. Account Control Tuesday, May 7, 13
33. = @message Tuesday, May 7, 13
34. Why are we listening to this? Tuesday, May 7, 13
35. Results Notifications in quiet spaces Personally configurable notifications Mapping data for accurate response Textual data for recall Full notes for decision support Firefighters are losing their pagers and forgetting how to read maps (???) Tuesday, May 7, 13
36. Worst Code Ever Worst Aesthetic Ever Most Significant Impact ? Tuesday, May 7, 13
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39. 1. Respond Quickly 2. Solve the Problem 3. Be Nice Tuesday, May 7, 13
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41. class MyTalk def self.the_point "It's not about the code" end end Tuesday, May 7, 13
42. 1. Respond Quickly 2. Solve the Problem 3. Be Nice Tuesday, May 7, 13
43. What now? Tuesday, May 7, 13
44. What now? 1) Find Cool Problem 2) Write Bad Code 3) Profit! Tuesday, May 7, 13
45. What now? 1) Find Cool Problem 2) Write Bad Code 3) Profit! Tuesday, May 7, 13
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48. Who gets it? Tuesday, May 7, 13
49. 1. Respond Quickly 2. Solve the Problem 3. Be Nice Tuesday, May 7, 13
50. Volunteer! • We can telecommute! • The workday is the hardest time for Volunteer fire departments to staff • You need the exercise! • Dangerous jobs require intelligent problem solvers. • Don’t pay for office space! • Genuine life experiences. • Diversify your social group (hard mode) • ~75% of firefighters in america are volunteers Tuesday, May 7, 13
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52. @EthanVizitei http://www.12spokes.com https://github.com/evizitei evizitei@bcfdmo.com Tuesday, May 7, 13