seroquel after dxm prednisone 5 vidal prednisone long term side effects in women priligy doziranje viagra make you come faster what to eat before taking viagra elimination half life of lexapro nolvadex gyno buy valor do medicamento clopidogrel atorvastatin dose linearity fluconazole in oral thrush plavix gastroskopi flagyl and melatonin behavior problems with singulair clomid and downs syndrome how much is montelukast at walmart awam ki adalat march 2012 antibiotic for dental infection in india lisinopril liver function maximum dosage for celebrex cara makan ubat subur clomid antidepressant anticonvulsant augmentin in alaptare nexium and urine odor zofran dose for infants 2 nizoral shampoo side effects does hobby lobby insurance cover viagra side effects cipro 500 mg ph of hydrochlorothiazide metformin puffy face cipro urine concentration viagra reviews patients metronidazole interaction with alcohol does albuterol sulfate inhaler cause weight gain tetracycline cre mice manufacturer of tamoxifen depression medication and tamoxifen should i buy propecia form india foro levitra 20 mg pms amoxicillin trihydrate episode 6 viagra falls uts?ttningssymtom nexium metronidazole creambuy onlineno precsription metabolism of nifedipine sertraline half life why can you not take allegra with fruit juices treatment of diverticulitis with flagyl research on best diet pill long term effects of singulair in adults lipitor maximum xenical uk reviews 2013 taking lyrica and wellbutrin cipro and mitochondrial disease erythromycin is what kind of antibiotic cipro anaphylaxis reaction metronidazole throwing up what to expect when taking levitra effects of drinking while on prednisone amoxicillin black stools which is best arcoxia or celebrex efectos secundarios del medicamento lamisil safe pediatric dose for zofran what are some authentic tamoxifen sources ketoconazole action is amoxicillin on the 4 dollar list can i take a diet pill while taking synthroid can valtrex prevent flu zoloft versus generic sertraline zoloft phobie how much is zyprexa generic dizzy from coming off zoloft do you maintain an erection after climaxing with cialis msds amoxicillin caps cymbalta y retencion de liquidos celebrex side effect constipation can u take ibuprofen with allegra d what will happen if you snort wellbutrin zofran causing cramping clopidogrel pgd finasteride india side effect grande suite costa allegra buy real propecia online viagra preise in holland metronidazole gel white clumps ultras sur viagra valtrex and celebrex bactrim ds treatment of uti cialis online with prescription prescription yeast infection diflucan during pregnancy can i take zantac with neurontin how make viagra from fruit buy nolvadex research uk price cialis vs viagra what is similar to wellbutrin li real viagra overnight li does plavix cause tinnitus phenergan ear infection chemical name for celexa overview of the cardiovascular effects of tadalafil cialis side effects cum faster drug dysfunction erectile reproduction amoxicillin with fish oil feline giardia metronidazole can abilify and wellbutrin be taken together can you sit in the sun while taking prednisone synthroid causes gerd adverse reaction to metronidazole qual pre?o do cialis prices of lesofat and xenical in the philippines amoxicillin sodium usp cipro coppa comen 2011 lexapro emotions can a man ejaculate while taking cialis does cipro affect yaz wellbutrin use to quit smoking flagyl treatment mrsa tamsulosina jarabe seroquel for insomnia and anxiety sildenafil guidelines should i take nexium in the morning or at night proscar rezeptfrei bestellen all images of cialis how long should i take doxycycline monohydrate 40 mg bupropion time effect will there ever be generic viagra dosage forms for cialis bupropion swelling feet allegra steinberg can you take viagra if you are taking simvastatin how long should misoprostol take chewable tadalafil topamax side effects 25 mg clomid side effects sleepy synergon y cytotec is metronidazole sold on the shelf at walmart famciclovir valaciclovir for cold sores discount program for cymbalta how does metformin help you lose weight web boardonce a day cialis effectiveness discussion viagra feminino gel after a couple uses of cialis buy sildenafil generic quetiapine define abortion cytotec forum other options for clomid patient assistance program for cialis ocular acyclovir uses female equivalent of viagra cymbalta depression tablets kamagra available in india chemists nexium 40 mg tomar em jejum buying cialis online yahoo answers best ways to take viagra yeast infection taking amoxicillin furosemide effect on magnesium zoloft for sweating equivalente flomax ciprofloxacin and haemophilus influenzae metformin und dialyse traitement gale humaine stromectol tadalafil does it work airsprung allegra review hydrocortisone cream with prednisone how eat viagra 25mg viagra description cara menggunakan cialis standard dose cipro for uti comprar viagra generico em portugal dosis misoprostol en aborto 500 mg valtrex daily for cold sores price of viagra at giant eagle albuterol for asthma treatment nursing implications of lasix cipro uses prostate bad dreams while taking wellbutrin celexa and compulsive eating uk cialis price quetiapine ketamine time period for cialis precio de cialis diario forum site achat viagra seroquel 200 prospecto lisinopril 10 mg not that many side efects how many viagra can kill you irshad adalat how long does avodart stay in your system how much is 1g dose of zithromax for chlamydia project yano viagra what does kamagra kgr 100 green pill do 2.5 mg cialis every other day zithromax rifampin what is hydrochlorothiazide pill when does wellbutrin work cipro spiagge larnaca clomid de j1 ? j5 valtrex gi side effects viagra subscripe zofran not helping pregnancy nausea doxycycline hyclate 100mg for sale seroquel xr prijs what will happen viagra pills mixed with milk zithromax dosage schedule functional groups of ciprofloxacin how do i get viagra legally in manitoba can you buy viagra in canada over the counter venta de viagra punta arenas doxycycline allergic penicillin instant erectile indian medicine from cipla zovirax cream nose prednisone nutritional supplements how quickly will lipitor lower cholesterol lexapro alcohol liver damage what can you not eat when taking levitra ppi and plavix guidelines mixing zithromax antacids lasix tab for dogs tamoxifen gum disease erythromycin stada granulat is nizoral safe to use during pregnancy which is more effective viagra or levitra telmisartan y metformina prednisone in senior dogs cialis orginal plavix 28cpr riv 75mg prezzo nexium vaistai cialis sublingual bula can cialis be taken with antibiotics metoprolol is what class of drug blurred vision prednisone oral viagra halloween costume common doses of bupropion prednisone upper gi bleeding tetracycline possible side effects flagyl one time dose still not pregnant after clomid delayed ejaculation with cialis cialis 5 mg gave to me wife lasix origin name cialis black commercial diflucan physician prescribing information strattera comentarios viagra monthly prescription celebrex cyclobenzaprine non prescription doxycycline 100mg side effects of coming off lisinopril hydro su dung thuoc singulair bactrim bactrim forte synthroid to armor conversion warum wirkt cialis nicht bula medicamento tadalafil zoloft effect on liver will allegra keep me awake prednisone brown teeth difference glucophage stagid can zithromax cure bacterial meningitus xenical roche forum fabricante synthroid prednisone cramps side effect linezolid sustained release inderal and hair loss singulair sachet 4mg used for reflux nifedipine er ter azithromycin 1 gramo prednisone leg muscles flagyl biam hvem kan bruke viagra pfizer viagra pack metoprolol and cramps does cialis affect ran metformin 850 mg is fluconazole an enzyme inducer best time to take my synthroid digoxin lasix hypokalemia prednisone with herbs cipro pantoprazole metformin and pcos 2012 cedro di cipro zoloft and personality change bactrim endovenoso where can i buy yellow jacket diet pills in canada thyroid energy and synthroid tabletki na odchudzanie xenical cena can you go in the sun on doxycycline buy amoxicillin and biaxin viagra tongue swelling plavix assistance form clomid stomach pain ovulation one pill of diflucan efeito do viagra no organismo nifedipine capsules dosage recommended flagyl dosage for bv is zithromax effective against e coli will i gain weight on 10mg prednisone rizatriptan in migraine does wellbutrin make you feel weird rhodiola thyroxine synthroid 188 mcg epilepsy drug neurontin la viagra en jovenes what are the side effects of metformin 1500 mg cipro contact synthroid dosage times premarin effects on males viagra generico pfizer benefits wellbutrin sr generic viagra nedir would a 8 year old singulair pill still be good cialis 20mg. film coated tablet erythromycin c difficile infection sildenafil citrate half life will clindamycin react with cialis cost of cialis for daily use cvs frasi spiritose sul viagra fluconazole cyp3a4 metoprolol toxicity management amoxicillin and antacids interaction where to buy cheap viagra on line oakland raiders viagra does bupropion cause serotonin syndrome can clomid affect baby fluconazole and prostate cancer qual o mecanismo de a??o do viagra how long do metformin stay in your system clomid results in men sweden socialist countries fluconazole in elderly depression treatment celexa clomid for multiples buying viagra online at spires adalat gout cialis dosis 5 mg real pfizer viagra 25 mg canadian 500 mg viagra ciprofloxacin plaquenil does viagra cause atrial fib allegra d and vitamin c tetracycline tooth discoloration adults flomax sarl cheap viagra active priligy generico farmacia viagra warsaw poland instruction ladies viagra in food valtrex generic 1 gram vs 500 mg can you do viagra two days in a row delayed period after taking clomid is gabapentin 300mg capsules a narcotic who shouldnt take viagra celexa approved anxiety doxycycline c diff liquid clomid for women what are the symptoms of going off cymbalta prednisone oral prednisolone prozac y cialis metformin dose for ovulation no explode y viagra reductil ve xenical viagra from usa shippment ems metformin szed?se xenical meinungen female cialis clopidogrel bula pdf paroxetine trazodone abilify vs lexapro generic of propecia from glenmark in india closest generic for nexium 40 mg side effects of metformin journal dutasteride liver montelukast generic pink square pill with round corners synthroid vs eltroxin propiedades de ciprofloxacn ringworm fluconazole how many tablets cialis safe surgery escitalopram krankenkasse nolvadex and proviron and sperms levitra data metformin effect on blood sugar generic seroquel pricing ciprotab tn premarin addiction strattera making me angry hair loss clinic singapore finasteride low cost seroquel xr zithromax fiyat does prednisone make your blood pressure rise propranolol hydrochloride formula qual a a??o do viagra buy doxycycline for cats uri with out rx proscar lu code bupropion hydrochloride blood pressure can you take keflex with prednisone coming with cialis viagra mclean va cialis fatty lver can you take adipex and synthroid best natural antidepressants cymbalta ibuprofen interaction fluconazole after antibiotics taking 5mg cialas with 50mg viagra ciprofloxacin evil cymbalta back pain does work can clomid 150mg have emotional side effects zovirax alcohol use custome splitter for cialis viagra efectos secundarios signs of allergy to amoxicillin in baby buspirone e fluoxetina lipitor for low income adrenal insufficiency caused by prednisone hamsters jet lag viagra misoprostol cytotec in pregnancy tamoxifen citrate colon cancer metronidazole 200g white and pregnancy bosentan for erectile dysfunction side effects of cipro for women is it safe to take 2 viagra pills the same day solubility of duloxetine can i take gabapentin with hydrocodone effexor and metoprolol how long does lasix stay in cats system dosage for phenergan syrup doxycycline hyclate vs cephalexin levitra generika vardenafil pillen cymbalta seroquel drug interactions headache for a day after taking viagra sildenafil en hipertension pulmonar primaria premarin for epistaxis can i use levitra im young es fiable la viagra generica can you take metformin with augmentin how to take liquid zoloft wie wirkt cymbalta levitra taking with milk viagra coldrink for women erythromycin opth ointment topamax ne i?in kullanilir albuterol for asthma attacks lisinopril losartan potassium where is buy viagra india acyclovir zovirax lip sore can you take topamax with depakote effetti del viagra nelle donne in how minimum time viagra starts working prednisone development strattera available resistance do antidepressants ranitidine allegra interactions hypothyroidism levothyroxine are escitalopram and lexapro the same medicamento metronidazole antibiotic sim ou o celebrex cardiac side effects zyvox 600 tablets in egypt lysine and tamoxifen levofloxacin contraceptive comparison of zocor to lipitor clomiphene tablets genesis prednisone transplantation zovirax comprar what is nizoral 400mg ovules used for weight gain on zoloft vs. prozac viagra gy?gyszert?ri ?rak azithromycin in romania neurontin dosage for pain how long does it for paxil to work desogen restauro prednisone for common cold can fluconazole and clotrimazole be taken together long term side effects ciprofloxacin smoking weed while on metformin terbinafine hydrochloride scrotum wellbutrin vs dexedrine wellbutrin weight loss sr vs xl xenical online ohne rezept theophylline and furosemide amoxicillin effectiveness with alcohol kidney pain after taking cipro nexium side effects in elderly atitur cipro 2012 can zoloft cause a yeast infection zovirax ointment kids does cymbalta affect taste lasix for thoroughbreds role of free thyroxine walkin clinic viagra plavix coumadin stroke buy avodart in canada allegra southend where to get easy viagra prescriptions manila how long does viagra take work for metformin and carvedilol intuniv strattera for adhd prednisone dosage tinnitus flying nolvadex bactrim ? bom para acne prednisone in renal transplant safe to use cialis without ed length of levaquin side effects viagra meenemen naar het buitenland doxycycline pack size tadalafil co uk xenical acheter code like water, compile like bamboo! — Glenn Fu

CORS + Heroku + Passenger + Cloudfront

I host Farmstand on Heroku, and I prefer to use Passenger to run it. I was using the asset_sync gem to connect my assets to Amazon S3 + Cloudfront, but recently the user-env-compile feature was removed and now it’s suggested that you have CloudFront pick up the assets directly from your server instead of sync’ing them there yourself.

This sounded like a reasonable thing until I realized that you can’t set an origin policy in this case. If you follow the suggested setup you’ll discover that CloudFront sets the headers exactly as it receives them from your app. That means if you want your CORS-happy headers on your fonts, your server must deliver them with those headers. Some people will point out that you can set default headers in Rails 4, but running curl -I was showing none of those headers, and just some information about Nginx. The reason was that for precompiled files, Nginx would see them, and serve them, and never even let the Rails server know that the request had happened, giving no opportunity to add the custom headers.

FireFox was showing me:
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at This can be fixed by moving the resource to the same domain or enabling CORS.

The issue was that the Nginx template provided by Passenger containing this:

location @static_asset {
gzip_static on;
expires max;
add_header Cache-Control public;
add_header ETag "";

Recently, as in last month (March 17), Passenger added support for providing a custom template for Nginx in response to this very issue.

Now as long as you ensure your Passenger gem is >= 4.0.39, you can run
ls $(passenger-config about resourcesdir)/templates/standalone/config.erb
to see what the default template is, and make your own version. I put mine in ./config/config.erb, and then in my Procfile changed my web line to
web: bundle exec passenger start -p $PORT --max-pool-size 3 --nginx-config-template ./config/config.erb.

Now you can add the needed headers to that same section of the template to look like this:

location @static_asset {
gzip_static on;
expires max;
add_header Cache-Control public;
add_header ETag "";
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Request-Method *;

In my staging.rb/production.rb file, I can use:

config.serve_static_assets = true
config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect'

To get a really close-to-actual test in my local environment, I ran:

RAILS_ENV=staging bundle exec rake assets:precompile
RAILS_ENV=staging foreman start web

and then:

$ curl -I
HTTP/1.1 200 OK
Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Access-Control-Request-Method: *
Cache-Control: max-age=315360000
Cache-Control: public
Content-length: 22404
Content-Type: application/x-font-ttf
Date: Tue, 13 May 2014 15:18:34 GMT
Expires: Thu, 31 Dec 2037 23:55:55 GMT
Last-Modified: Fri, 02 May 2014 20:55:47 GMT
Server: nginx/1.6.0
Connection: keep-alive

Hooray, the headers are there!

Mac OSX Development Environment Setup after Archive and Restore

After a few years of owning my Mac, I started to feel that maybe, just maybe, it might be a little slower than it used to be. If nothing else, too many failed late night experiments had led to me installing weird systemy things that didn’t always entirely want to go away.

To clean up my baby, I tried out the ‘Archive and Restore’ feature found on my Mac DVD. It reinstalls OSX Leopard replacing the old instance and attempts to leave all of your application and profile settings just how they were.

Upon completion, I am certainly running smoother and faster, but sadly some of my web development setup got broken along the way.

So that it’s clear, my environment involves using these primary components:

  • MySQL
  • Ruby on Rails
  • Apache/Passenger

Here’s an account of what I did to restore my environment to working order:

MySQL, Git

First step, I followed Dan Croak’s setup guide for the following steps (Ruby and RubyGems were already working fine btw):

  • XCode Tools
  • MySQL
  • Git


Then I recovered the following files from my Time Machine backup:

  • /usr/local/mysql/data (to get my dev databases back)
  • /etc/hosts (to get my local ip shortcuts back)
  • /etc/apache2/httpd.conf (to get my apache/passenger settings back)

If you didn’t backup your Apache/Passenger config, you’ll want to re-run

sudo passenger-install-apache2-module

and probably follow John Ford’s Apache setup guide to get Passenger working for you again.

TextMate integration

Redo this for TextMate’s mate command in console:


I also consulted Neil Ang’s blog to get locate working again.
There’s also a way to make it use Spotlight’s index if you check the comments, however this prevents searching directories such as /usr and /bin, but it can be fun if you want locate to follow your Spotlight preferences for search restrictions.

That’s it! Now I’m back to work. I hope this helps someone else out there.

Development Tips using Passenger for Rails

I’ve just recently set up my rails development environment to be managed by Passenger, and I have to say I like being able to type in real URL’s for my domains and not have to manually start my sites.

However, having formerly done my development by first running “script/server” and then going to town, I miss having the log output handy for whenever I blow something up.

If you’ve made the transition to Passenger I imagine you might also feel the same way, so let’s get that back! The easiest way is to use

tail -f log/development.log

Much better! Now we can see the server log output again so it’s easy to view the stack traces for our bugs. However, now that we’re up and running with our super slick hyped-up toy called ‘Passenger’… we’re still having to take just as many steps to get the same results! In fact, typing that command takes longer than script/server used to take.

Well let’s just fix all of our problems in one fell swoop. Add the following to your .bash_login file:

alias go='cd ~/Sites/;> log/development.log;mate .;open -a FireFox http://newcoolsite/staff;tail -f log/development.log;'

…where ‘newcoolsite’ is the directory/domain that you’re interested in. Now when we open up our terminal, we just type ‘go’, hit enter, and in about half a second we’ll find the following has happened:

  1. Our terminal has moved to the proper folder for our site (~Sites/
  2. The development log is cleared
  3. TextMate opened our code
  4. FireFox opened our site (http://newcoolsite/)
  5. Our terminal started monitoring the server log output

Much better! However there’s still one thing bugging me. We used to just hit Ctrl+C then Up and Enter to restart script/server. It was a very quick and easy way to restart the server and keep our terminal window showing us the activity that we want to see. At this point we still have to type

touch tmp/restart.txt
tail -f log/development.log

Unacceptable!! We can easily remedy this situation. Just add a new line to our .bash_login file resulting in the following:

alias go='cd ~/Sites/;> log/development.log;mate .;open -a FireFox http://newcoolsite/staff;tail -f log/development.log;'
alias rs='> log/development.log;touch tmp/restart.txt;tail -f log/development.log;'

Now we just hit Ctrl+C, then rs to restart the server and resume our server log monitoring.

Very smooth and painless. Happy coding!

Building Named Scopes Conditionally

I recently ran across an article at about building named scopes conditionally to make a slick filter. Unfortunately comments on it are closed now. The code he shared looked like this:

def index
  scopes = []
  scopes << [ :by_user, params[:user_id] ] if params[:user_id]
  scopes << [ :tag_name, params[:tag_name] ] if params[:tag_name]
  scopes << [ :rating, params[:rating] ] if params[:rating]

  order = { 'name' => ' ASC' }[params[:order]] || ' DESC'

  @videos = scopes.inject(Video) {|m,v| m.scopes[v[0]].call(m, v[1]) }.paginate(:all, :order => order, :page => params[:page])

I found this code soon after writing something similar for myself, and modifying his code to look like mine would give:

def index
  scope = Video
  scope = scope.by_user params[:user_id] if params[:user_id]
  scope = scope.tag_name params[:tag_name] if params[:tag_name]
  scope = scope.rating params[:rating] if params[:rating]

  order = { 'name' => ' ASC' }[params[:order]] || ' DESC'

  @videos = scope.paginate(:all, :order => order, :page => params[:page])

With this there’s no need for the inject/call, you just call the methods yourself, and skip building an array of symbols/strings. I’m sure this is more efficient, but does this make it more or less readable to you?

I saw Ryan Bates post a response to his article suggesting one could use his scope builder plugin which would turn the code into this:

def index
  scope = Video.scope_builder
  scope.by_user params[:user_id] if params[:user_id]
  scope.tag_name params[:tag_name] if params[:tag_name]
  scope.rating params[:rating] if params[:rating]

  order = { 'name' => ' ASC' }[params[:order]] || ' DESC'

  @videos = scope.paginate(:all, :order => order, :page => params[:page])

Seems like a very small gain for the introduction of a plugin. Am I missing something? Are there other examples where my solution would not be as attractive? Or is this a case where the original Rails code suits the purpose just fine?

Mock Expectation Fails on Associated Model (Association Proxy)

I just hit a real mean snag today trying to put an expectation on a model and it didn’t get caught like it should. This is something I do all the time so I knew I wasn’t just making a basic typo. Here’s what my setup looked like:

The model

def purchase
def send_shipping_notice
  puts "hi"

In my spec/test

def given_bought_on(date)
  wp = @order.product
  puts wp.inspect

The output

#<Product id: 270, owner_id: 270, name: 'thing'>

Spec::Mocks::MockExpectationError in 'Product should purchase'
Mock 'Product' expected :send_shipping_notice with (any args) once, but received it 0 times
./spec/models/product_spec.rb:21:in `given_bought_on'

So as you can see, I put an expectation on the wp variable, and verify it gets called by seeing ‘Hi’ get printed. However the expectation totally gets overlooked and my test framework complains that it never happened.

The catch is that the wp in my test and the web_page self inside the model are two different models. So the expectation is on a different model. Calling .object_id or .inspect on either one will affirm (or rather lie) to you that they’re the same, but they are not.

This is (as I’m told) well documented in ActiveRecord and is intentional by design. The wp variable is in fact an Association Proxy, not the WebPage I think it is. It just lies to you outright so you think it’s a WebPage.

My solution, while rather a hack, is the only thing I know to get my spec to pass:

def given_bought_on(date)
  wp = Product.find(@order.product_id)
  puts wp.inspect

Now it grabs the model directly and there’s no confusion.

Rails Pagination by Letters (not Numbers like will_paginate)

I want my list of data to be paginated by letters. The will_paginate plugin certainly gives excellent pagination if all you want is “prev 1 2 3 .. 6 next” kind of pagination.

However what if you’re looking for entries that start with the letter H and you have no idea if that’s page 4 or page 42? You’re probably wanting something more like “# A B C D…” pagination.

I did some googling and found people speaking of solutions for “A B C D…” but in my case, not all of my entries start with letters! If you have something like media titles in your data set, having an entry start with a number is perfectly normal. Some might even start with special characters! Some people suggest having an ‘All’ option, but if you need pagination, it’s probably because you have enough data that showing all options at once is a very bad idea.

Here’s my solution:

First I make a helper function for my options that’ll be cached permanently.

def letter_options
  $letter_options_list ||= ['#'].concat(("A".."Z").to_a)

Here’s my index action in my controller:

@letter = params[:letter].blank? ? 'a' : params[:letter]
if params[:letter] == '#'
  @data = Model.find(:all, :conditions => ["title REGEXP ?", 
      "^[^a-z]"], :order => 'title', :select => "id, title")
  @data = Model.find(:all, :conditions => ["title LIKE ?", 
      "#{params[:letter]}%"], :order => 'title', :select => "id, title")

Here’s my html

<div class ="pagination">
  <% letter_options.each do |letter| %>
    <% if params[:letter] == letter %>
      <span class="current"><%= letter %></span>
    <% else %>
      <%= link_to letter, staff_games_path(:letter => letter)%>
    <% end %>
  <% end %>

There we go! Now the # will pull up all entries where the first character is not a letter.

Attachment Fu and Zip Files – RubyZip and Extracting For Bulk Uploads

Today I’m going to share how you can let your app accept zip files which will then be extracted into multiple attachments. If you already use Attachment Fu to manage files, this should be super easy to add.

Before my controller had something like this:

Attachment.create(:uploaded_data => params[:Filedata])

First break that up into something more like this:

attachment =
attachment.uploaded_data = params[:Filedata]

Then put in some split logic for if it’s a zip file:

attachment =
attachment.uploaded_data = params[:Filedata]
if attachment.content_type == "application/zip"
    # Unzip this and process all the inner files

Now we’ll need the RubyZip gem and MIME Types gem, so do:

sudo gem install rubyzip
sudo gem install mime-types

Now in the Attachment class we’ll add the build_from_zip method:

def self.build_from_zip(ss)
 zipfile =
 zipfile.each do |entry|
     screen =
     screen.filename =
     screen.temp_data =
     mime = MIME::Types.type_for([0]
     screen.content_type = mime.content_type unless mime.blank?

The only two non-obvious things to note here are:

  • I skip the files with / in them because when I archive files on my machine, hidden files with / characters in them make it into the archive. I only want the real files.
  • I use the MIME Types gem to decide the content type from the filename.

I hope you find this helpful, enjoy!

IE6 vs JavaScript (Prototype) and Sortable Elements Hidden/Disappearing/Invisible

Today I have another IE6 quirk in dealing with Prototype. I have a bunch of elements that I want to sort with a Sortable object, which works as expected for the most part, except in IE6!

I set background-color: #E6F2FF; to the rows of my ‘table’ which of course isn’t a real table, just some nicely styled div’s! The problem with this is that there’s a bug in this situation with IE6. All the contents of my rows are hidden! That means text, links, images. It looks as if all of the rows are just empty… except I can mouse-over and my mouse can interact with the elements.

It turns out, the opacity css attribute is 0. Or at least IE6 behaves as if it is. The thing is, FireBug doesn’t agree, and if you set opacity: 1; in your stylesheet it won’t cut it. The problem begins just after the Sortable.Create call. Removing this call fixes the problem, obviously, but that’s not what we want!

Here’s my solution. After the Sortable.Create call, do this:

if (Prototype.Browser.IE) {
    $$('.relevant_class_name').invoke.setStyle({opacity: 1});

where relevant_class_name is the css class assigned to the row’s of data on my page. This sets the opacity to all of the affected elements after the the Sortable object screws things up.

Hooray! I hope this helps someone else.

IE vs JavaScript (Prototype) and position: relative

In the current project I’m working on I have all sorts of cool AJAX madness happening to add things to my pages. For one particular example, I have AJAX calls that add pieces to the page with more AJAX functions inside of those pieces. Fun, huh?

The kicker is that some of the elements on the page there are being shown with the style attribute of position: static;. It just so happens that Prototype and position: static do not always play nicely in this case.

Let me show you what I mean. Here you see an image with two links placed with position: static;.

Clicking on “+ Add Foo” twice and “+ Change Bar” gives:

This works as expected. However if I add a duplication of this segment of the page using an AJAX call, the new portion does not work as expected while in Internet Explorer (every other browser works just fine of course).

To illustrate the problem while trying to do the same thing with the new segment, first I add the new segment via the “+ Add Many Things” link.

Then I click “- Change Bar” which hides the following two lines. You now see the two links I’ve been referring do not follow the movement of the page. They should have scrolled up and they did not.

To handle this, I need some extra JavaScript. First I add the following to the parameters of my AJAX call:

onSuccess: function(request){ reposition(); }

Next I want to take the elements that I know I have this problem with (selected by class name) and then first turn off the “relative” position by setting it to “static” and then back to “relative” again. By the way I figured this out thanks to way too much time fiddling with things in FireBug and the IE Dom Inspector. I can’t come up with any real sense to it. To make this happen, I add the following JavaScript for IE only:

function reposition() {
  if (Prototype.Browser.IE) {
function swapStaticToRelative(item) {
	item.setStyle({ position: 'static' });
	item.setStyle({ position: 'relative' });

Note that the following also works for detecting that the browser is any version of IE:

function reposition() {
          /*@if (@_win32)
          @else @*/

I wish I could remember where I found that, but it’s crazy cool. Sure the Prototype way is better… but this is a fun one to stare at for a while until you figure out how it’s working.

So with that change in place, this time it works as expected.

The only thing better I think (aside from IE not sucking) would be to have a way to select fields by style attributes. If I could figure that out, I’d be able to make a single call to swap these CSS attributes for all instances on the page that are relevant to this problem. If I could do that, then it might be a candidate for a patch to Prototype.

If you have a suggestion for a better way to handle this or if my post helped you out, please let me know by leaving a comment!

Easy PlainText Stories in Ruby on Rails using WebRat

Building off of my last post on Stories, I’d like to show you some improvements I was able to make with the help of WebRat.

You can install WebRat using:

script/plugin install

I got the inspiration from Ben Mabey at ‘ben.send :blog’ which illustrates an approach to stories that is unbelievably easy to pick up. He also provides source code to the example that he’s built so that you can play with it. Very cool!

I snagged that source myself and started playing with it, and added a lot of functionality of my own that I found useful. The real cool thing is that the ONLY application specific code I have is this:

# user_steps.rb
steps_for(:user) do
  Given("that $actor is not logged in") do |actor|
    get "/sessions/destroy"
    response.should be_redirect
    flash[:notice].should == "You have been logged out."

    #fails here even though in the next request it will pass
    #controller.should_not be_logged_in
  Then("$actor $should be logged in") do |actor, should|
    controller.send(shouldify(should), be_logged_in)

# navigation_steps.rb
def path_from_descriptive_name(page_name)
  case page_name
  when "home"
  when "signup"
  when "login"

With that, and the generic application-independent helper methods that also live in my steps directory, I can write the following story:

Story: Making posts

  As a visitor
  I want to be a member
  So that I can make posts

    Scenario: Glenn creates a new account
      Given that Glenn is not logged in
      And there are some number of users
      And no user with login 'Glenn' exists
      When he goes to the signup page
      And fills in Login with 'Glenn'
      And fills in Email with ''
      And fills in Password with 'blah'
      And fills in Confirm Password with 'blah'
      And clicks the 'Sign up' button

      Then there should be 1 more user
      And a user with login 'Glenn' should exist

    Scenario: Glenn logs in
      GivenScenario Glenn creates a new account

      When Glenn goes to the login page
      And fills in Login with 'Glenn'
      And fills in Password with 'blah'

      Then he should be logged in
    Scenario: A member makes a post while logged in
      GivenScenario Glenn logs in
      And there are some number of posts

      When he goes to the posts page
      And clicks on 'New post'
      And fills in Title with 'Woo'
      And fills in body with 'Stuff here'
      And clicks the 'Create' button

      Then there should be 1 more post
      And a post with title 'Woo' should exist

    Scenario: A nice lady makes a post while not logged in
      Given that she is not logged in
      Then she should not be logged in

      Given there are some number of posts

      When she goes to the posts page
      And clicks on 'New post'

      Then she should see the login page

    Scenario: An angry visitor should be able to see posts
      Given that he is not logged in

      When he goes to the posts page

      Then he better not f'ing see the login page

    Scenario: A visitor should not be able to edit posts
      GivenScenario A member makes a post while logged in
      And that she is not logged in

      When she goes to the posts page
      And clicks on 'Edit'

      Then she should see the login page

Pretty cool, huh? I was even able to add some personality with the angry visitor Scenario. Notice that I don’t have any steps written about Posts or my PostsController. I don’t need it because I have generic model steps that parse the model from the text in my PlainText instructions. It has all the basics that you need. You interact with forms and links on the top level by name, and then check the results either by text on the page or by finding models.

If you’d like to play with it yourself, I’ve zipped up my stories folder for you to play with.

Download it here!

It also has the old user_story.rb from the previous example. If you have any suggestions for improvements to this or ideas for something else I should do with it, please leave a comment!

My only quirk with this is that if you check the first step in the steps_for(:user) above you’ll see I have a line commented out. It checks for controller.should_not be_logged_in and if I uncomment it, the check fails even though the two above it pass. As you can see in the PlainText, on the very next line I call the very same check and it passes. If you could help me figure out my mistake here I’d really appreciate you leaving a comment with your thoughts!

I hope you find this useful, and if so, be sure to go toss a thank you over to Ben for the inspiration.