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  • Dynamic use of :default_url in Paperclip

    - by dgilperez
    I'm trying to configure Paperclip to provide different missing images based on the instance's category attribute. Every category of the object has its own missing image. This is my first take: EDIT to add full models: class Service < ActiveRecord::Base attr_accessible :logo, :logo_file_name, :logo_content_type, :logo_file_size, :logo_updated_at belongs_to :category, :counter_cache => true has_attached_file :logo, :path => "/:id-:style-:filename", :url => ":s3_eu_url", :default_url => "/logos/:style/#{self.category.name]}.png", :styles => { :large => "600x400>", :medium => "300x200>", :small => "100x75>", :thumb => "60x42>" } end class Category < ActiveRecord::Base attr_accessible nil has_many :services end In my view, image_tag service.logo.url(:thumb) outputs: undefined method `category' for #<Class:0x0000010a731620> Any ideas? EDIT2: A working default_url is :default_url => "/logos/:style/missing.png", SOLUTION: See my own answer below.

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  • Extracting pair member in lambda expressions and template typedef idiom

    - by Nazgob
    Hi, I have some complex types here so I decided to use nifty trick to have typedef on templated types. Then I have a class some_container that has a container as a member. Container is a vector of pairs composed of element and vector. I want to write std::find_if algorithm with lambda expression to find element that have certain value. To get the value I have to call first on pair and then get value from element. Below my std::find_if there is normal loop that does the trick. My lambda fails to compile. How to access value inside element which is inside pair? I use g++ 4.4+ and VS 2010 and I want to stick to boost lambda for now. #include <vector> #include <algorithm> #include <boost\lambda\lambda.hpp> #include <boost\lambda\bind.hpp> template<typename T> class element { public: T value; }; template<typename T> class element_vector_pair // idiom to have templated typedef { public: typedef std::pair<element<T>, std::vector<T> > type; }; template<typename T> class vector_containter // idiom to have templated typedef { public: typedef std::vector<typename element_vector_pair<T>::type > type; }; template<typename T> bool operator==(const typename element_vector_pair<T>::type & lhs, const typename element_vector_pair<T>::type & rhs) { return lhs.first.value == rhs.first.value; } template<typename T> class some_container { public: element<T> get_element(const T& value) const { std::find_if(container.begin(), container.end(), bind(&typename vector_containter<T>::type::value_type::first::value, boost::lambda::_1) == value); /*for(size_t i = 0; i < container.size(); ++i) { if(container.at(i).first.value == value) { return container.at(i); } }*/ return element<T>(); //whatever } protected: typename vector_containter<T>::type container; }; int main() { some_container<int> s; s.get_element(5); return 0; }

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  • c++ global operator not playing well with template class

    - by John
    ok, i found some similar posts on stackoverflow, but I couldn't find any that pertained to my exact situation and I was confused with some of the answers given. Ok, so here is my problem: I have a template matrix class as follows: template <typename T, size_t ROWS, size_t COLS> class Matrix { public: template<typename, size_t, size_t> friend class Matrix; Matrix( T init = T() ) : _matrix(ROWS, vector<T>(COLS, init)) { /*for( int i = 0; i < ROWS; i++ ) { _matrix[i] = new vector<T>( COLS, init ); }*/ } Matrix<T, ROWS, COLS> & operator+=( const T & value ) { for( vector<T>::size_type i = 0; i < this->_matrix.size(); i++ ) { for( vector<T>::size_type j = 0; j < this->_matrix[i].size(); j++ ) { this->_matrix[i][j] += value; } } return *this; } private: vector< vector<T> > _matrix; }; and I have the following global function template: template<typename T, size_t ROWS, size_t COLS> Matrix<T, ROWS, COLS> operator+( const Matrix<T, ROWS, COLS> & lhs, const Matrix<T, ROWS, COLS> & rhs ) { Matrix<T, ROWS, COLS> returnValue = lhs; return returnValue += lhs; } To me, this seems to be right. However, when I try to compile the code, I get the following error (thrown from the operator+ function): binary '+=' : no operator found which takes a right-hand operand of type 'const matrix::Matrix<T,ROWS,COLS>' (or there is no acceptable conversion) I can't figure out what to make of this. Any help if greatly appreciated!

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  • Unusual Template Behavior with XSL

    - by bobber205
    Experiencing some very odd behavior with, what should be, a very simple use of XSL and XSLT. Here's a code sample. <xsl:template match="check"> <div class="check"> <xsl:apply-templates mode="check"> <xsl:with-param name="checkName">testVariable</xsl:with-param> </xsl:apple-templates> </div> </xsl:template> The template called above <xsl:template match="option" mode="check"> <xsl:param name="checkName" /> <div class="option"> <input type="checkbox"> </input> <label> testText </label> </div> </xsl:template> Pretty simple right? It should, for each instance of a instance in the XML create a checkbox in a with a hard coded label. However, what I'm getting is <div class="check"></div> <div class="option>Checkbox stuff here</div> <div class="option>Checkbox stuff here</div> <div class="option>Checkbox stuff here</div> <div class="option>Checkbox stuff here</div> <div class="check"></div> <div class="option>Checkbox stuff here</div> <div class="option>Checkbox stuff here</div> <div class="option>Checkbox stuff here</div> <div class="option>Checkbox stuff here</div> Here's some sample XML <check><option key="1"/><option key="0"/><option key="0"/><option key="0"/><option key="0"/></check> Anyone know what's going on? :D

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  • foswiki: hide some topic info when editing in WYSWYG mode.

    - by Mica
    I have a FOSWiki installation with a bunch of Topic templates already defined. the problem is, when a user selects the topic, they are presented with a bunch of extra information that they should not edit, and should not even see really. Is there a way to hide this content in the WYSWYG editor? Example: The topic template looks like this: <!-- * Foswiki.GenPDFAddOn Settings * Set GENPDFADDON_TITLE = <font size="7"><center>Foo</center></font> * Set GENPDFADDON_HEADFOOTFONT = helvetica * Set GENPDFADDON_FORMAT = pdf14 * Set GENPDFADDON_PERMISSIONS = print,no-copy * Set GENPDFADDON_ORIENTATION = portrait * Set GENPDFADDON_PAGESIZE = letter * Set GENPDFADDON_TOCLEVELS = 0 * Set GENPDFADDON_HEADERSHIFT = 0 --> <!-- PDFSTART --> <!-- HEADER LEFT "Foo:Bar" --> <!-- HEADER RIGHT "%BASETOPIC%" --> <!-- HEADER CENTER " " --> <!-- FOOTER RIGHT "Doc Rev %REVINFO{"r$rev - $date " web="%WEB%" topic="%BASETOPIC%"}%" --> <!-- FOOTER LEFT "F-xxx Rev A" --> <!-- FOOTER CENTER "Page $PAGE(1)" --> Header 1 foo etc. etc. etc <!-- pdfstop --> And when the user selects the topic template, they get all that in the WYSWYG editor. I would like to hide all that so when the user selects the topic template, they get Header 1 foo etc etc etc Without any of the other mark-up.

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  • Lotus Domino Administrator client missing

    - by vit
    Hi, I have just installed the trial version of Lotus Domino and now I'm pulling my hair out as for some stupid reason I can't find the Domino Administrator client. I have found multiple suggestions on various websites where to download it from, but all of them lead to the same section of the IBM website which actually only has the Lotus Notes client, despite the page title. What am I missing here and where do I find the client? Thank you.

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  • Windows 7 XP mode missing driver virtual pc integration device

    - by Charlie Wu
    I have XP Mode installed fine, but the shipped Windows XP installation is too heavy. I tried to install a light XP using my ASUS Eee PC. After installation, I have to install a few missing drivers and everything worked OK except I can't copy and paste between host and guest operating system. I checked Device Manager and found the Virtual PC Integration Device is not installed correctly. I can't find any driver for that. How can I fix this problem?

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  • Customize the Five Windows Folder Templates

    - by Mark Virtue
    Are you’re particular about the way Windows Explorer presents each folder’s contents? Here we show you how to take advantage of Explorer’s built-in templates, which cuts down the time it takes to do customizations. Note: The techniques in this article apply to Windows XP, Vista, and Windows 7. When opening a folder for the first time in Windows Explorer, we are presented with a standard default view of the files and folders in that folder. It may be that the items are presented are perfectly fine, but on the other hand, we may want to customize the view.  The aspects of it that we can customize are the following: The display type (list view, details, tiles, thumbnails, etc) Which columns are displayed, and in which order The widths of the visible columns The order in which the files and folders are sorted Any file groupings Thankfully, Windows offers us a shortcut.  A particular folder’s settings can be used as a “template” for other, similar folders.  In fact, we can store up to five separate sets of folder presentation configurations.  Once we save the settings for a particular template, that template can then be applied to other folders. Customize Your First Folder We’ll start by setting up the first of our templates – the default one.  Once we create this template and apply it, the vast majority of the folders in our file system will change to match it, so it’s important that we set it up very carefully.  The first step in creating and applying the template is to customize one folder with the settings that all the rest will have. Choose a folder that is typical of the folders that you wish to have this default template.  Select it in Windows Explorer.  To ensure that it is a suitable candidate, right-click the folder name and select Properties, then go to the Customize tab.  Ensure that this folder is marked as General Items.  If it is not, either choose a different folder or select General Items from the list. Click OK.  Now we’re ready to customize our first folder. Changing the way one single folder is presented is straightforward.  We start with the folder’s display type.  Click the Change your view button in the top-right corner of every Explorer window. Each time you click the button, the folder’s view cycles to the next view type.  Alternatively you can click the little down-arrow next to the button to see all the display types at once, and select the one you want. Click the view you want, or drag the slider next to the one you want. If you have chosen Details, then the next thing you may wish to change is which columns are displayed, and the order of these.  To choose which columns are displayed, simply right-click on any column heading.  A list of the columns currently being display appears. Simply uncheck a column if you don’t want it displayed, and check the columns that you want displayed.  If you want some information displayed about your files that is not listed here, then click the More… button for a full list of file attributes. There’s a lot of them! To change the order of the columns that are currently being displayed, simply click on a column heading and drag it to where you think it should be.  To change the width of a column, click the line that represents the right-hand edge of the column and drag it left or right. To sort by a column, click once on that column.  To reverse the sort-order, click that same column again. To change the groupings of the files in the folder, right-click in a blank area of the folder, select Group by, and select the appropriate column. Apply This Default Template to All Similar Folders Once you have the folder exactly the way you want it, we now use this folder as our default template for most of the folders in our file system.  To do this, ensure that you are still in the folder you just customized, and then, from the Organize menu in Explorer, click on Folder and search options. Then select the View tab and click the Apply to Folders button. After you’ve clicked OK, visit some of the other folders in your file system.  You should see that most have taken on these new settings. What we’ve just done, in effect, is we have customized the General Items template.  This is one of five templates that Windows Explorer uses to display folder contents.  The five templates are called (in Windows 7): General Items Documents Pictures Music Videos When a folder is opened, Windows Explorer examines the contents to see if it can automatically determine which folder template to use to display the folder contents.  If it is not obvious that the folder contents falls into any of the last four templates, then Windows Explorer chooses the General Items template.  That’s why most of the folders in your file system are shown using the General Items template. Changing the Other Four Templates If you want to adjust the other four templates, the process is very similar to what we’ve just done.  If you wanted to change the “Music” template, for example, the steps would be as follows: Select a folder that contains music items Apply the existing Music template to the folder (even if it doesn’t look like you want it to) Customize the folder to your personal preferences Apply the new template to all “Music” folders A fifth step would be:  When you open a folder that contains music items but is not automatically displayed using the Music template, you manually select the Music template for that folder. First, select a folder that contains music items.  It will probably be displayed using the existing Music template: Next, ensure that it is using the Music template.  If it’s not, then manually select the Music template. Next, customize the folder to suit your personal preferences (here we’ve added a couple of columns, and sorted by Artist). Now we can set this view to be our Music template.  Choose Organize, then the View tab, and click the Apply to Folders button. Note: The only folders that will inherit these settings are the ones that are currently (or will soon be) using the Music template. Now, if you have any folder that contains music items, and you want it to inherit all of these settings, then right-click the folder name, choose Properties, and select that this folder should use the Music template.  You can also cehck the box entitled Also apply this template to all subfolders if you want to save yourself even more time with all the sub-folders. Conclusion It’s neat to be able to set up templates for your folder views like this.  It’s a shame that Microsoft didn’t take the concept just a little further and allow you to create as many templates as you want. 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  • System File Missing

    - by hossam-khalili
    Hello, I have Windows SBS 2008 R2 use it as file server and i missing some system32 file, so i need to repair it but I don't know how repair/restore this file. Can anyone help me? Thanks

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  • missing files after reassemble of RAID-5

    - by Kris_R
    I had to open my file-server's housing on Sunday to replace a faulty fan. What I didn't see was that one of the sata-cables was not properly connected. The 1st thing I did after a reboot was a check of the RAID status and it showed immediately that one drive is missing. Till this moment the device was not used (however it was mounted, so I'm not 100% sure that system did nothing). I stopped md0 and re-plugged the cable: mdadm --stop /dev/md0 poweroff After another reboot I checked the removed drive: mdadm --examine /dev/sdd1 ... Checksum : 3276bc1d - correct Events : 315782 Layout : left-symmetric Chunk Size : 32K Number Major Minor RaidDevice State this 0 8 49 0 active sync /dev/sdd1 0 0 8 49 0 active sync /dev/sdd1 1 1 8 65 1 active sync /dev/sde1 2 2 8 33 2 active sync /dev/sdc1 3 3 8 17 3 active sync /dev/sdb1 I was a bit surprised that it was shown as active (even if earlier mdadm said, that this device was removed from array) and its checksum was OK. I recreated RAID with: mdadm --assemble /dev/md0 --scan The command mdadm --detail /dev/md0 showed that all drives were running and system was in "clean" state. I mounted the device md0 and then came hic-cup. I wanted to work on one of the last files that I had been using before all the situation and it was not there. In another place I missed actually all files from the directory where I was working. As far as I can see most of the files that are older than a few days are intact but some newer ones are missing. Now the big question: what would be your advice? Is there a way to get these data? I thought about removing the drive that was earlier labeled by mdadm and rebuild array with another empty HDD. I've found that after re-assemble the "broken" drive has another label (changed from sdd to sdb). Can this have influence on rebuilt process? If yes, how to reassemble the array properly? I'm sure the SATA-cables are connected still in the same order to the controller. p.s. Please no advises like "restore from backup". I'm doing back-ups on Sunday's night and this happened in the late afternoon, so backup is not really options for me. p.s.s. I asked this question on Unix&Linux but no answer came up during last two days. I'm getting quite anxious. Sorry for duplicating if any of you reading the other forum.

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  • Server certificate was missing commonName attribute in subject name

    - by Webnet
    I'm trying to setup an SSL SVN server and when I try to checkout remotely I get the error Server certificate was missing commonName attribute in subject name I did some googling and from what I can tell I need to add the IP address of the URL I'm accessing to openss.cnf with the commonName attribute like below. I did that but I still get the error. commonName = xx.xxx.xx.xx commonName_max = 64

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  • my multi boot can't boot to XP 'resumeobject' is missing

    - by GwenKillerby
    In my multi boot set up, booting to vista and 7 goes fine, but when I try to boot to XP, i get an error Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: 1. Insert your Windows installation disc and restart your computer. 2. Choose your language settings, and then click "Next." 3. Click "Repair your computer." If you do not have this disc, contact your system administrator or computer manufacturer for assistance. File: \NTLDR Status: 0xc000000e Info: The selected entry could not be loaded because the application is missing or corrupt. See below. Clearly the resumeobject seems to be missing in the XP entry ("Real Mode Boot sector"), only I don't know how to restore it. Vista is on **C:**, Win7 is on **F:** (as is the bootmgr ??? ) and WinXP is on **E:** What I've tried: [1] I've used about 5 windows discs, that is the Recovery Consoles from real XP install CD's and 3 virtual Recovery Consoles. All failed. The real CD's work ONE time, but won't let me finish, I only got as far as [b]fixboot E:[/b] Then they shut the laptop down, I kid you not. On a next startup, all 5 CD's ask me for some Admin password that I've never added! [2] I have VisualBCD and EasyBCD, but the most obvious things I tried there didn't solve the problem. So know I don't exactly know what to do with them. [3] I CAN boot into XP with the FIX NTLDR workaround of http://milescomer.com/tinyempire.com/notes/ntldrismissing.htm, but it doesn't fix it permanently QUESTION: How do I fix it permanently? bcdedit /enum output: Windows Boot Manager -------------------- identifier {bootmgr} device partition=F: path \bootmgr description Windows Boot Manager locale en-US default {current} displayorder {current} {812e27a9-27b7-11e4-8fb4-dfa8174ae8dc} {812e27ac-27b7-11e4-8fb4-dfa8174ae8dc} timeout 30 resume No Windows Boot Loader ------------------- identifier {current} device partition=C: path \Windows\system32\winload.exe description Vista locale nl-NL osdevice partition=C: systemroot \Windows resumeobject {73d8b5bc-2764-11e4-b181-806e6f6e6963} Windows Boot Loader ------------------- identifier {812e27a9-27b7-11e4-8fb4-dfa8174ae8dc} device partition=F: path \Windows\system32\winload.exe description Daisy Etta locale en-US osdevice partition=F: systemroot \Windows resumeobject {b8c234a4-27b0-11e4-b8b3-806e6f6e6963} Real-mode Boot Sector --------------------- identifier {812e27ac-27b7-11e4-8fb4-dfa8174ae8dc} device partition=E: path \NTLDR description XP Thank you.

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  • ODBC Drivers Missing on Windows Sever 2003 64 bit OS

    - by Nagendra
    Hello All, I am working on a Windows Server 2003 x64 bit OS. Under ODBC connections, I am seeing only "SQL Server" and "SQL native Client". I wanted to make a datasource for xls. I have already performed the following things and there is no use :: Gone through the reply specified in JET and ODBC driver missing, can not get data from MDBs but there is no use for me. I think the link sol;ves the problem for a 32 bit OS. Installed Mdac 2.8 Any help on this would be greatly appreciated.

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  • Trying to setup phpUnderControl but missing phpcb

    - by blcArmadillo
    Hi, I'm trying to setup phpUnderControl on Ubuntu 10.04 following this tutorial http://techportal.ibuildings.com/2009/03/03/getting-started-with-phpundercontrol/. I get to the part where it says to type in sudo phpuc example /opt/cruisecontrol but recieve the following error: Missing cli tool 'phpcb', check the PATH variable. I did a little googling but can't seem to find reference of a phpcb anywhere. Does anyone know what this is and where I might get it? Thanks.

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  • Wordpress: Upload has failed to upload due to an error Missing a temporary folder

    - by JL.
    I've installed Wordpress on IIS, Running on Windows 7 (64Bit). Rest of the site is working perfectly. Except when I try upload images into media. I then get this error message "sample.jpg" has failed to upload due to an error Missing a temporary folder I have edited the php.ini file to point to a directory : D:\work\websites\mySite Saved that and done an IIS reset. Problem still persists. Any ideas what is wrong?

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  • missing NTLDR / no CD drive recognition

    - by Daems
    I formatted C: after installing win 7 on F: partition. on startup reported missing NTLDR changed boot seq to CD. only bleep sounds and failing boot. I could try to put the files on a USB stick and boot, but are there better options ?

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  • Missing advanced network settings for iphone usb/bt tethering

    - by tehfink
    I have the same problem described here: http://discussions.apple.com/message.jspa?messageID=10082848#10082848 Basically, the prefpane windows for my tethered iphone's network interfaces (bluetooth & USB) looks like the image link in the post above, and is missing the normal options for network interfaces: www.macblog.sk/files/pictures/snowleopard_iphone_tethering_connectoin_tcp.png I would like to use the polipo caching proxy for tethered browsing, and am unable to enter proxy settings.

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  • httpd 2.4 missing directives

    - by CraigH
    I just setup httpd 2.4 on an Amazone AMI and I noticed in the httpd.conf file there are alot of directives missing compared to a 2.2 conf file. For example: ServerTokens, Timeout, Server Signature, LoadModule are all not present. My question is, if they arent explicitly set in the httpd.conf file are they being set somewhere else? If not, what are their default values and why arent they in the conf file. Should I manually be setting these directives?

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  • pg_dump: Error message from server: ERROR: missing chunk number 0 for toast value 43712886 in pg_to

    - by Kirill Novozhilov
    After $ pg_dumpall -U postgres -f /tmp/pgall.sql I see following: pg_dump: SQL command failed pg_dump: Error message from server: ERROR: missing chunk number 0 for toast value 43712886 in pg_toast_16418 pg_dump: The command was: COPY public.page_parts (id, name, filter_id, content, page_id) TO stdout; pg_dumpall: pg_dump failed on database "radiant", exiting I haven't earlier backups. How can I fix it? Thanks in advance.

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  • Missing ISOBurn context menu

    - by Tim Jarvis
    This is a slightly updated version of the question I asked here I have isoburn.exe in the system32 directory of my machine, however I am missing the context menu when right clicking an ISO image ("Burn Disk Image") Does anyone know how I can restore the context menu?

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  • Xen guest miration to host with missing features

    - by deploymonkey
    If I want to move a xen guet (domU) from one host (dom0) to another host on another hardware platform which misses some capabilities, say virtualisation features, especially directio or likewise, will my image be able to run despite missing capabilities of the new host? This is important because I need to know if I can prepare XEN images on my workstation with full virtualisation features and deploy same images on less capable Servers later on. Thanks for the help and input

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