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  • How to use acts-as-commentable-with-threading in Rails

    - by alex
    Hi All, I am developing my first rails site (yup, i am a rails idiot). I'm writing a blog, and i got to the comments part. I installed acts-as-commentable-with-threading ( GitHub ), i made and ran the migration like the install instructions said. I have added acts_as_commentable to my Posts model and i have a Comments controller When i add @comment = Comment.build_from(params[:id],1, params[:body] ) I get the error. undefined method `build_from' for # Clearly i am doing something terribly wrong, and i don't really get the example. What should i be feeding to build_from? Can somebody explain this plugin step by step? :) Or is there an easier way to get simple threaded comments?

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  • JAXB, BigDecimal or double?

    - by Alex
    I working on different web-services, and I always use WSDL First. JAXB generates for a Type like: <xsd:simpleType name="CurrencyFormatTyp"> <xsd:restriction base="xsd:decimal"> <xsd:totalDigits value="13"/> <xsd:fractionDigits value="2"/> <xsd:minInclusive value="0.01"/> </xsd:restriction> </xsd:simpleType> a Java binding type BigDecimal (as it's mentioned in JAXB specification). When I then do some simple arithmetic operation with values of the type double (which are stored in a database and mapped via hibernate to the type double) I run into trouble. <ns5:charge>0.200000000000000011102230246251565404236316680908203125</ns5:charge> <ns5:addcharge>0.0360000000000000042188474935755948536098003387451171875</ns5:addcharge> <ns5:tax>0.047199999999999998900879205621095024980604648590087890625</ns5:tax> <ns5:totalextax>0.2360000000000000153210777398271602578461170196533203125</ns5:totalextax> What would be the right way? Convert all my values into double (JAXB binding from BigDecimal to double) Hibernate mapping double to Bigdecimal and do all my arithmetic operations in one object type.

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  • Python: combining making two scripts into one

    - by Alex
    I have two separately made python scripts one that makes a sine wave sound based off time, and another that produces a sine wave graph that is based off the same time factors. I need help combining them into one running file. Here's the first: from struct import pack from math import sin, pi import time def au_file(name, freq, freq1, dur, vol): fout = open(name, 'wb') # header needs size, encoding=2, sampling_rate=8000, channel=1 fout.write('.snd' + pack('>5L', 24, 8*dur, 2, 8000, 1)) factor = 2 * pi * freq/8000 factor1 = 2 * pi * freq1/8000 # write data for seg in range(8 * dur): # sine wave calculations sin_seg = sin(seg * factor) + sin(seg * factor1) fout.write(pack('b', vol * 64 * sin_seg)) fout.close() t = time.strftime("%S", time.localtime()) ti = time.strftime("%M", time.localtime()) tis = float(t) tis = tis * 100 tim = float(ti) tim = tim * 100 if __name__ == '__main__': au_file(name='timeSound.au', freq=tim, freq1=tis, dur=1000, vol=1.0) import os os.startfile('timeSound.au') and the second is this: from Tkinter import * import math import time t = time.strftime("%S", time.localtime()) ti = time.strftime("%M", time.localtime()) tis = float(t) tis = tis / 100 tim = float(ti) tim = tim / 100 root = Tk() root.title("This very moment") width = 400 height = 300 center = height//2 x_increment = 1 # width stretch x_factor1 = tis x_factor2 = tim # height stretch y_amplitude = 50 c = Canvas(width=width, height=height, bg='black') c.pack() str1 = "sin(x)=white" c.create_text(10, 20, anchor=SW, text=str1) center_line = c.create_line(0, center, width, center, fill='red') # create the coordinate list for the sin() curve, have to be integers xy1 = [] xy2 = [] for x in range(400): # x coordinates xy1.append(x * x_increment) xy2.append(x * x_increment) # y coordinates xy1.append(int(math.sin(x * x_factor1) * y_amplitude) + center) xy2.append(int(math.sin(x * x_factor2) * y_amplitude) + center) sinS_line = c.create_line(xy1, fill='white') sinM_line = c.create_line(xy2, fill='yellow') root.mainloop()

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  • ASP.NET MVC Ajax.ActionLink's weird behavior

    - by Alex
    I'm doing the simplest ajax request possible: public ActionResult SayHello() { return Content("YYAAAY"); } ////////// <div id="Div1"> <%= Ajax.ActionLink("SAY HELLO", "SayHello", new AjaxOptions { UpdateTargetId = "Div1" })%> </div> It works when I start an empty ASP.NET MVC project, but when I use it in my current project, it displays the whole page recursively instead of YYAAAY phrase only. Where might be the problem?

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  • Windows Vista, Default Programs API, file format associations, and (un)installers - explosive mix!

    - by Alex T.
    My application is a rather well behaved Windows citizen, so when I ported it to Windows Vista/7 I replaced my custom file format association code with support for the Default Programs API. However I ran into a problem when trying to make uninstaller for my application - there seems to be no way to remove file format associations via Default Programs API. I tried to call IApplicationAssociationRegistration::ClearUserAssociations but it actually removes all associations, including the ones for other applications - completely restoring default state of the OS (which is of course unacceptable). I tried to call IApplicationAssociationRegistration::SetAppAsDefault to return file format associations to the previous "owner" - but it does not help, because my application handles many unique file formats which the OS does not support and there is no previous "owners". And Windows does not allow to pass empty strings to SetAppAsDefault... So what do I do? Any good solutions?

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  • Can someone help fix my vimrc config?

    - by alex
    set nohlsearch set ai set bg=dark set showmatch highlight SpecialKey ctermfg=DarkGray set listchars=tab:>-,trail:~ set list autocmd BufRead *.py set smartindent cinwords=if,elif,else,for,while,try,except,finally,def,class set tabstop=4 set shiftwidth=4 set expandtab set autoindent set smartindent syntax on set listchars=tab:>- set listchars+=trail:. set ignorecase set smartcase map <C-t><up> :tabr<cr> map <C-t><down> :tabl<cr> map <C-t><left> :tabp<cr> map <C-t><right> :tabn<cr> map <F1> <Esc> imap <F1> <Esc> set pastetoggle=<F5> This is my vimrc. I want to fix it so that it doesn't show ---- ---- when other people tab. Thank.

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  • abstract class NumberFormat - very confused about getInstance()

    - by Alex
    Hi, I'm new to Java and I have a beginner question: NumberFormat is an abstract class and so I assume I can't make an instance of it. But there is a public static (factory?) method getInstance() that allow me to do NumberFormat nf = NumberFormat.getInstance(); I'm quite confuse. I'll be glad if someone could give me hints on: 1) If there is a public method to get an instance of this abstract class, why don't we have also a constructor? 2) This is an abstract class ; how can we have this static method giving us an instance of the class? 3) Why choosing such a design? If I assume it's possible to have an instance of an abstract class (???), I don't get why this class should be abstract at all. Thank you.

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  • jQuery click _blank

    - by Kenneth B
    Hi guys With help from you guys I now have a script that works like a charm.. The only thing I need now, is the script to open the URL in a new tab/window. $(document).ready(function() { $("#onskeliste li").click( function() { window.location = $(this).attr("url"); return false; }); $('#onskeliste li a').click(function(e) { e.stopPropagation(); }); })(jQuery); Can you help me with this?? :-)

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  • Extracting the source code of a facebook page with JavaScript

    - by Hafizi Vilie
    If I write code in the JavaScript console of Chrome, I can retrieve the whole HTML source code by entering: var a = document.body.InnerHTML; alert(a); For fb_dtsg on Facebook, I can easily extract it by writing: var fb_dtsg = document.getElementsByName('fb_dtsg')[0].value; Now, I am trying to extract the code "h=AfJSxEzzdTSrz-pS" from the Facebook Page. The h value is especially useful for Facebook reporting. How can I get the h value for reporting? I don't know what the h value is; the h value is totally different when you communicate with different users. Without that h correct value, you can not report. Actually, the h value is AfXXXXXXXXXXX (11 character values after 'Af'), that is what I know. Do you have any ideas for getting the value or any function to generate on Facebook page. The Facebook Source snippet is below, you can view source on facebook profile, and search h=Af, you will get the value: <code class="hidden_elem" id="ukftg4w44"> <!-- <div class="mtm mlm"> ... .... <span class="itemLabel fsm">Unfriend...</span></a></li> <li class="uiMenuItem" data-label="Report/Block..."> <a class="itemAnchor" role="menuitem" tabindex="-1" href="/ajax/report/social.php?content_type=0&amp;cid=1352686914&amp;rid=1352686914&amp;ref=http%3A%2F%2Fwww.facebook.com%2 F%3Fq&amp;h=AfjSxEzzdTSrz-pS&amp;from_gear=timeline" rel="dialog"> <span class="itemLabel fsm">Report/Block...</span></a></li></ul></div> ... .... </div> --> </code> Please guide me. How can extract the value exactly? I tried with following code, but the comment block prevent me to extract the code. How can extract the value which is inside comment block? var a = document.getElementsByClassName('hidden_elem')[3].innerHTML;alert(a);

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  • Jquery droppable live disabling/enabling

    - by Cameron
    I have a some draggables in a list of droppables (1 draggable per droppable li). When I move a draggable from one droppable to another free droppable, I want to diable the receiving droppable, and enable the droppable it is leaving from. In firebug the droppable class gets removed – but the functionality of the droppable remains. I have a feeling I need to use live() somehow, but could use a leg-up. $(function() { $(".user").draggable({ revert : true, revertDuration : 200 }); $("li.droppable").droppable({ accept : ".user", hoverClass : "drophover", drop: function(event, ui) { var position = this.getAttribute("id").replace("position_", ""), user_id = ui.draggable.attr("id").replace("user_", ""); droppable = this parent = ui.draggable.parent() $.ajax({ url : "users/"+user_id+"", type : "POST", dataType: "JSON", data : ({ "position" : position, "_method" : "PUT" }), success : function() { $(ui.draggable).parent().addClass("droppable"); $(ui.draggable).appendTo(droppable); $(parent).removeClass("droppable"); } }); } }); });

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  • Using python to play two sine tones at once

    - by Alex
    I'm using python to play a sine tone. The tone is based off the computer's internal time in minutes, but I'd like to simultaneously play one based off the second for a harmonized or dualing sound. This is what I have so far; can someone point me in the right direction? from struct import pack from math import sin, pi import time def au_file(name, freq, dur, vol): fout = open(name, 'wb') # header needs size, encoding=2, sampling_rate=8000, channel=1 fout.write('.snd' + pack('>5L', 24, 8*dur, 2, 8000, 1)) factor = 2 * pi * freq/8000 # write data for seg in range(8 * dur): # sine wave calculations sin_seg = sin(seg * factor) fout.write(pack('b', vol * 127 * sin_seg)) fout.close() t = time.strftime("%S", time.localtime()) ti = time.strftime("%M", time.localtime()) tis = float(t) tis = tis * 100 tim = float(ti) tim = tim * 100 if __name__ == '__main__': au_file(name='timeSound1.au', freq = tim, dur=1000, vol=1.0) import os os.startfile('timeSound1.au')

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  • programming logic and design pleas friends i need a flowcharts or pseudocode

    - by alex
    ***the midvile park maintains records containing info about players on it's soccer teams . each record contain a players first name,last name,and team number . the team are team number team name 1 goal getters 2 the force 3 top gun 4 shooting stars 5 midfield monsters design a proggram that accept player data and creates a report that lists each** player a long with his or her team number and team name**

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  • JQuery AJAX is not sending UTF-8 to my server, only in IE.

    - by alex
    I am sending UTF-8, japanese text, to my server. It works in Firefox. My access.log and headers are: /ajax/?q=%E6%BC%A2%E5%AD%97 Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Content-Type application/x-www-form-urlencoded; charset=UTF-8 Howeer, in IE8, my access.log says: /ajax/?q=?? For some reason, IE8 is turning my AJAX call into question marks. Why!? I added the scriptCharset and ContentType according to some tutorials, but still no luck. And this is my code: $.ajax({ >---method:"get", >---url:"/ajax/", scriptCharset: "utf-8" , contentType: "application/x-www-form-urlencoded; charset=UTF-8", >---data:"q="+query ... ...

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  • Blurry UILabel as programmatic subview of UITableViewCell contentView

    - by Alex Reynolds
    I am adding a UILabel instance as a subview of my custom UITableViewCell instance's contentView. When I select the cell, the row is highlighted blue, except for the background of the label. The label text is sharp. When I set the label and content view backgroundColor property to [UIColor clearColor], the label text becomes blurry. How do I set the label background color to be clear, to allow the row highlight to come through, while still keeping the label text sharp? One suggestion I read elsewhere was to round the label's frame values, but this did not have any effect. CODE Here is a snippet of my custom UITableViewCell subview's -setNeedsLayout method: UILabel *_objectTitleLabel = [[UILabel alloc] initWithFrame:CGRectNull]; _objectTitleLabel.text = [self.awsObject cleanedKey]; _objectTitleLabel.font = [UIAppDelegate defaultObjectLabelFont]; _objectTitleLabel.highlightedTextColor = [UIColor clearColor]; //[UIAppDelegate defaultLabelShadowTint]; _objectTitleLabel.backgroundColor = [UIColor clearColor]; //[UIAppDelegate defaultWidgetBackgroundTint]; _objectTitleLabel.frame = CGRectMake( kCellImageViewWidth + 2.0 * self.indentationWidth, 0.5 * (self.tableView.rowHeight - 1.5 * kCellLabelHeight) + kCellTitleYPositionNudge, contentViewWidth, kCellLabelHeight ); _objectTitleLabel.frame = CGRectIntegral(_objectTitleLabel.frame); _objectTitleLabel.tag = kObjectTableViewCellTitleSubviewType; //NSLog(@"_objectTitleLabel: %@", NSStringFromCGRect(_objectTitleLabel.frame)); [self.contentView addSubview:_objectTitleLabel]; [_objectTitleLabel release], _objectTitleLabel = nil; ... self.contentView.backgroundColor = [UIAppDelegate defaultWidgetBackgroundTint]; self.contentView.clearsContextBeforeDrawing = YES; self.contentView.autoresizesSubviews = YES; self.contentView.clipsToBounds = YES; self.contentView.contentMode = UIViewContentModeRedraw;

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  • How to make this .htaccess rule case insensitive?

    - by alex
    This is a rule in my .htaccess # those CSV files are under the DOCROOT ... so let's hide 'em <FilesMatch "\.CSV$"> Order Allow,Deny Deny from all </FilesMatch> I've noticed however that if there is a file with a lowercase or mixed case extension of CSV, it will be ignored by the rule and displayed. How do I make this case insensitive? I hope it doesn't come down to "\.(?:CSV|csv)$" (which I'm not sure would even work, and doesn't cover all bases) Note: The files are under the docroot, and are uploaded automatically there by a 3rd party service, so I'd prefer to implement a rule my end instead of bothering them. Had I set this site up though, I'd go for above the docroot. Thanks

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  • Passing string with (accidental) escape character loses character even though it's a raw string

    - by Steen
    I have a function with a python doctest that fails because one of the test input strings has a backslash that's treated like an escape character even though I've encoded the string as a raw string. My doctest looks like this: >>> infile = [ "Todo: fix me", "/** todo: fix", "* me", "*/", r"""//\todo stuff to fix""", "TODO fix me too", "toDo bug 4663" ] >>> find_todos( infile ) ['fix me', 'fix', 'stuff to fix', 'fix me too', 'bug 4663'] And the function, which is intended to extract the todo texts from a single line following some variation over a todo specification, looks like this: todos = list() for line in infile: print line if todo_match_obj.search( line ): todos.append( todo_match_obj.search( line ).group( 'todo' ) ) And the regular expression called todo_match_obj is: r"""(?:/{0,2}\**\s?todo):?\s*(?P<todo>.+)""" A quick conversation with my ipython shell gives me: In [35]: print "//\todo" // odo In [36]: print r"""//\todo""" //\todo And, just in case the doctest implementation uses stdout (I haven't checked, sorry): In [37]: sys.stdout.write( r"""//\todo""" ) //\todo My regex-foo is not high by any standards, and I realize that I could be missing something here. EDIT: Following Alex Martellis answer, I would like suggestions on what regular expression would actually match the blasted r"""//\todo fix me""". I know that I did not originally ask for someone to do my homework, and I will accept Alex's answer as it really did answer my question (or confirm my fears). But I promise to upvote any good solutions to my problem here :) I'm using Python 2.6.4 (r264:75706, Dec 7 2009, 18:45:15) Thank you for reading this far (If you skipped directly down here, I understand)

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  • Can I have Visual Studio IDE auto-comple brackets?

    - by Alex K
    Suppose I have a line of code that starts like the following: Func1(Func2(Func3 Is it possible to set up Visual Studio (2005, 2008, 2010) IDE, so that when I hit ';' it will auto-complete all the brackets. I am only interested in brackets, nothing fancier. It doesn't have to be ';' key, it can be another key that auto-completes both brackets and ';'. This is a tiny thing that pops-up time and time again, and I've always wondered if I had to live with it. Thanks.

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  • How do I fix incorrect inline Javascript indentation in Vim?

    - by Charles Roper
    I can't seem to get inline Javascript indenting properly in Vim. Consider the following: $(document).ready(function() { // Closing brace correctly indented $("input").focus(function() { $(this).closest("li").addClass("cur-focus"); }); // <-- I had to manually unindent this // Closing brace incorrectly indented $("input").blur(function() { $(this).closest("li").removeClass("cur-focus"); }); // <-- This is what it does by default. Argh! }); Vim seems to insist on automatically indenting the closing brace shown in the second case there. It does the same if I re-indent the whole file. How do I get it to automatically indent using the more standard JS indenting style seen in the first case?

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  • STAThread and Process output capture in c#

    - by alex
    Hi: This is a strange problem I encountered. I have an window application written in c# to do testing. It has a MDI parent form that is hosting a few children forms. One of the forms launch test cripts by creating processes and capture the scripts output to a text box. Another form open serial port and monitoring the status of the device I am working on(like a shell). If I ran both of them together, the output of the script seems only appear in the text box after the test is done. However, If I don't open the serial port form, the output of the script is captured in real time. Does anyone knows what's causing the problem? I notice the onDataReceived even handler for serial port form has a [STAThread] header to it. Will this cause the serial port thread having higher priority than other processes? Thanks in advance.

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  • c# Windows Service not appearing in services list after install

    - by alex
    I've created a windows service in c#, using Visual Studio 2008 I pretty much followed this: http://www.codeproject.com/KB/dotnet/simplewindowsservice.aspx I created a setup project, as instructed to in the article, and ran it... it installs my service to c:\program files\product etc.... however, it does not then appear in the services list.. What am i missing?

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  • Facebook access_token invalid?

    - by Alex Cook
    I'm attempting to use the new Graph API Facebook recently released, but I can't seem to get it to work correctly. I've gone through the steps, and after the /authorize call, I receive an access_token: access_token=109002049121898|nhKwSTJVPbUZ5JYyIH3opCBQMf8. When I attempt to use that token I get: { "error": { "type": "QueryParseException", "message": "An active access token must be used to query information about the current user." } } I'm stumped as too why... -AC

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  • KISS: Simple C# application which communicates with a RESTful web service.

    - by Workshop Alex
    Following the KISS principle, I suddenly realised the following: In .NET, you can use the Entity Model Framework to wrap around a database. This model can be exposed as a web service through WCF. This web service would have a very standardized definition. A client application could be created which could consume any such RESTful web service. I don't want to re-invent the wheel and it wouldn't surprise me if someone has already done this, so my question is simple: Has anyone already created a simple (desktop, not web) client application that can consume a RESTful service that's based on the Entity Framework and which will allow the user to read and write data directly to this service? Otherwise, I'll just have to "invent" this myself. :-)Problem is, the database layer and RESTful service is already finished. The RESTful service will only stay in the project during it's development phase, since we can use the database-layer assembly directly from the web applications that are build around it. When the web application is deployed, the RESTful services are just kept out of the deployment. But the database has a lot of data to manage over nearly 50 tables. When developing against a local database, we can have straight access to the database so I wouldn't need this tool for this. When it's deployed, the web application would be the only way to access the data so I could not use this tool. But we're also having a test phase where the database is stored on another system outside the local domain and this database is not available for developers. Only administrators have direct access to this database, making tests a bit more complex. However, through the RESTful service, I can still access the data directly. Thus, when some test goes wrong, I can repair the data through this connection or just create a copy of the data for tests on my local system. There's plenty of other functionality and it's even possible to just open the URL to a table service straight in Excel or XMLSpy to see the contents. But when I want to write something back, I have to write special code to do just that. A generic tool that would allow me to access the data and modify it would be easier. Since it's a generic setup around the ADO.NET Data services, this should be reasonable easy too. Thus, I can do it but hoped someone else has already done something similar. But it appears that there's no such tool made yet...

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  • Django loading mysql data into template correctly

    - by user805981
    I'm new to django and I'm trying to get display a list of buildings and sort them alphabetically, then load it into an html document. Is there something that I am not doing correctly? below is models.py class Class(models.Model): building = models.CharField(max_length=20) class Meta: db_table = u'class' def __unicode__(self): return self.building below is views.py views.py def index(request): buildinglist = Class.objects.all().order_by('building') c = {'buildinglist': buildinglist} t = loader.get_template('index.html') return HttpResponse(t.render(c)) below is index.html index.html {% block content%} <h3>Buildings:</h3> <ul> {% for building in buildinglist %} <li> <a href='www.{% building %}.com'> # ex. www.searstower.com </li> {% endfor %} </ul> {% endblock %} Can you guys point me in the right direction? Thank you in advance guys! I appreciate your help very much.

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