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  • How should I implement items that are normalized in the Database, in Object Oriented Design?

    - by Jonas
    How should I implement items that are normalized in the Database, in Object Oriented classes? In the database I have a big table of items and a smaller of groups. Each item belong to one group. This is how my database design look like: +----------------------------------------+ | Inventory | +----+------+-------+----------+---------+ | Id | Name | Price | Quantity | GroupId | +----+------+-------+----------+---------+ | 43 | Box | 34.00 | 456 | 4 | | 56 | Ball | 56.50 | 3 | 6 | | 66 | Tin | 23.00 | 14 | 4 | +----+------+-------+----------+---------+ Totally 3000 lines +----------------------+ | Groups | +---------+------+-----+ | GroupId | Name | VAT | +---------+------+-----+ | 4 | Mini | 0.2 | | 6 | Big | 0.3 | +---------+------+-----+ Totally 10 lines I will use the OOP classes in a GUI, where the user can edit Items and Groups in the inventory. It should also be easy to do calculations with a bunch of items. The group information like VAT are needed for the calculations. I will write an Item class, but do I need a Group class? and if I need it, should I keep them in a global location or how do I access it when I need it for Item-calculations? Is there any design pattern for this case?

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  • How can Domain driven design be combined with aspect oriented programming?

    - by anthares
    I'm doing research and one point I want to cover is "What is the relationship between Domain-driven Design and Aspect oriented programming?" I know that a main principle in DDD is separation of concerns and I understand that. What I'm not really certain is, whether aspects in AOP acts like "sub domains" in our domain in DDD. Are these two concepts, basically the same thing. I mean, If I develop an application following AOP and DDD, at the end of the day will it be true that "a sub domain" == "an aspect". I will also appreciate any other opinions what is the common between AOP and DDD.

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  • Triggering custom events in AJAX callbacks

    - by Sabrina Gelbart
    I'm pretty new to JavaScript, but one of the things that's been frustrating is that our AJAX callbacks have been getting packed with different functionality, making it difficult to keep everything separated and organized. I'm really new to programming, I have a feeling learning MVC a bit more would help me, but for now using custom events seems like it could help me keep my code a lot cleaner and prevent some problems. Here's what I'm talking about: function myAjaxFunction(){ $.post('ajax/test.html', function(data) { $(document).trigger('testDataLoaded',data); }); } function myOtherFunctionThatsDependentUponAjax(){ $(document).one('testDataLoaded', function(data){ alert (data); } } I also don't know if it's ok that I'm triggering document or not... Are there any patterns that look like this that I can read more about? What are the potential problems with this?

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  • Benefit of using Data URI to embed images within HTML document and its cross-browser compatibility

    - by Manoj Agarwal
    I want to embed an image using Data URI within HTML document so that we don't need image as a separate attachment, we get just one HTML file that contains the actual image. What are its advantages and disadvantages? Does IE10 supports it? Is it useful to have such an implementation? I am working on an application, where we have html documents that link towards images stored in some location. If I use tiny online editor, as images are saved somewhere in the server, while editing the document, i can provide a link towards that image, but can't preview the final document with images from within tiny editor. If I chose to download the file locally, then i will need to download the images from server side. It looks a bit overkill, so I thought if Data URI could be used in such a situation.

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  • Setup & Usage of Document Sequencing in Oracle Receivables

    - by Robert Story
    Upcoming WebcastTitle: Setup & Usage of Document Sequencing in Oracle ReceivablesDate: May 20, 2010 Time: 11:00 am EDT Product Family: Receivables Community Summary Understanding Document Sequencing and how it can be used to generate document numbers in Oracle Receivables. This one-hour session is recommended for both technical and functional users. Topics will include: Review of important tablesRequired setup stepsUse of Oracle Diagnostics to review critical setupsHow to create gapless sequencesCommon Errors Troubleshooting Tips A short, live demonstration (only if applicable) and question and answer period will be included. Click here to register for this session....... ....... ....... ....... ....... ....... .......The above webcast is a service of the E-Business Suite Communities in My Oracle Support.For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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  • undefined control sequence in a NOWEB document

    - by Jean Baldraque
    I'm writing a TeX-noweb document. I compile it with noweave -tex -filter "elide comment:*" texcode.nw > documentation.tex but when I try to compile the resulting file with xetex -halt-on-error documentation.tex I obtain the following error message ! Undefined control sequence. <argument> ...on}\endmoddef \nwstartdeflinemarkup \nwenddeflinemarkup It seems that \nwenddeflinemarkup is not recognized. If i delete from the document all the sequences \nwstartdeflinemarkup\nwenddeflinemarkup the document compile without exceptions. What can be the problem?

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  • Multiple Document Interfaces in Visual Basic

    What is Multiple Document Interface (MDI)? In most VB.NET applications, it is using a single document interface (SDI). In this type of interface, every window is unique to aother window. But in multiple document interface, it works by having one parent window with child windows under it. See the screenshot below: As you can see, there is one parent window (in gray color) and there are 3 child windows (in blue, violet and orange color). You can have more than 3 child windows depending on your application requirements. But you can only have one parent window. Depending on the design of your MDI...

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  • jquery wait till large document is loaded

    - by Martijn
    In my web application I call a document can be huge. This document is loaded into an iframe. I have a title, buttons and the text which all depends on this document. The text is from the large document and is displayed in the iframe. I'd like to show an animated gif while the document is loading on 3 places (1: document title, 2: document buttons, 3: document text, the iframe) I've tried the onload event on the Iframe, but this doesn't give the me the desired effect. Here's my code that loads the document: function loadDocument(id, doc) { $("#DocumentContent").show(); $("#ButtonBox").show(); // Clear dynamic menu items $("#DynamicMenuContent").html(""); $("#PageContent").html(""); // Load document in frame $("#iframeDocument").attr("src", 'ViewDoc.aspx?id=' + id + '&doc=' + doc + ''); // $("#iframeDocument").attr("src", "Graphics/loader.gif"); // Load menu items $.ajax({ url: "ShowButtons.aspx?id=" + id + "&doc=" + doc, success: function(data) { $("#DynamicMenuContent").html(data) }, error: function(xhr, err, e) { alert("error: " + err) } }); // Set document title $("#documentTitle").load("GetDocumentInfo.aspx?p=title"); } My questions, how can I display a loader gif while the document is loaded? And remove the gif when the document is ready?

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  • jQuery: Writing jquery in an object oriented way

    - by anoopkattodi
    Hi all, I am trying to write all my query code in an object oriented way. But I don't know how to implement this for each click function and hover function etc. I also wanted to know: What are the advantages of writing query in object oriented way? For query what is better the object oriented way or in the ordinary way?

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  • Magento, NGINX, PHP-FPM, APC, MEMCACHED, 16gb Ram CentOS, Spiking PHP-FPM to 100% CPU

    - by Terry Dunford
    I have been trying to resolve my issue of spiking cpu caused by php-fpm processes. I've reduced the php-fpm config settings to: pm = ondemand pm.max_children = 12 pm.start_servers = 2 pm.min_spare_servers = 2 pm.max_spare_servers = 10 pm.max_requests = 500 php_admin_value[memory_limit] = 128M Problem still exists. I'm running a Joomla main site (which is having no problems) and a Magento store in a sub-directory. My server is a Linux CentOS, running NGINX, APC, Memcached, Full Page Cache and php-fpm. My server has 8 cores and 16gb dedicated ram. My host has shut down my server several times the past week because my php-fpm processes are consuming the entire network. A lot of the individual php-fpm processes are getting over 50% cpu. I've hired several "professionals" and none of them was able to help me, so now broke and stumped, I'm turning to you guys for help. So any suggestions would be greatly appreciated. I turned on slow php logs and here are some of the latest results: [01-Apr-2012 14:26:12] [pool magento] pid 21537 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000011a394f8] _renderStraightjoin() /home/flyfish/www/flyshop/lib/Varien/Db/Select.php:397 [0x0000000011a39158] _renderStraightjoin() /home/flyfish/www/flyshop/lib/Zend/Db/Select.php:705 [0x0000000011a38f30] assemble() /home/flyfish/www/flyshop/lib/Zend/Db/Select.php:1343 [0x00007fffbb6d6e50] __toString() unknown:0 [0x0000000011a38630] _prepareQuery() /home/flyfish/www/flyshop/lib/Varien/Db/Adapter/Pdo/Mysql.php:409 [0x0000000011a38270] _prepareQuery() /home/flyfish/www/flyshop/lib/Varien/Db/Adapter/Pdo/Mysql.php:388 [0x0000000011a38008] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:734 [0x0000000011a375c8] fetchAll() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Product/Type/Configurable/Attribute/Collection.php:196 [0x0000000011a370e0] _loadLabels() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Product/Type/Configurable/Attribute/Collection.php:129 [0x0000000011a369a0] _afterLoad() /home/flyfish/www/flyshop/lib/Varien/Data/Collection/Db.php:536 [0x0000000011a364a8] load() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:253 [0x0000000011a35968] getConfigurableAttributes() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:330 [0x0000000011a35590] getUsedProducts() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:458 [0x0000000011a35410] isSalable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1264 [0x0000000011a35098] isAvailable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1244 [0x0000000011a34fa8] isSalable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1308 [0x0000000011a33998] isSaleable() /home/flyfish/www/flyshop/app/design/frontend/moxy/default/template/rokmagemodules/rokmage-categoryview/rokmage-categoryview.phtml:122 [0x0000000011a331f0] +++ dump failed [01-Apr-2012 14:26:44] [pool magento] pid 21531 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000011a37768] _loadPrices() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Product/Type/Configurable/Attribute/Collection.php:251 [0x0000000011a37280] _loadPrices() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Product/Type/Configurable/Attribute/Collection.php:132 [0x0000000011a36b40] _afterLoad() /home/flyfish/www/flyshop/lib/Varien/Data/Collection/Db.php:536 [0x0000000011a36648] load() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:253 [0x0000000011a35b08] getConfigurableAttributes() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:330 [0x0000000011a35730] getUsedProducts() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:458 [0x0000000011a355b0] isSalable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1264 [0x0000000011a35238] isAvailable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1244 [0x0000000011a35148] isSalable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1308 [0x0000000011a33b38] isSaleable() /home/flyfish/www/flyshop/app/design/frontend/moxy/default/template/rokmagemodules/rokmage-categoryview/rokmage-categoryview.phtml:122 [0x0000000011a33390] +++ dump failed [01-Apr-2012 14:27:01] [pool magento] pid 21528 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000011ff67a8] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement/Pdo.php:228 [0x0000000011ff6518] _execute() /home/flyfish/www/flyshop/lib/Varien/Db/Statement/Pdo/Mysql.php:110 [0x0000000011ff5e90] _execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement.php:300 [0x0000000011ff5a20] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:479 [0x0000000011ff5438] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Pdo/Abstract.php:238 [0x0000000011ff5078] query() /home/flyfish/www/flyshop/lib/Varien/Db/Adapter/Pdo/Mysql.php:389 [0x0000000011ff4e98] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:825 [0x0000000011ff4948] fetchOne() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Category/Flat.php:1161 [0x0000000011ff4678] getProductCount() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Category.php:801 [0x0000000011ff33e0] getProductCount() /home/flyfish/www/flyshop/app/code/local/Extendware/EWLayeredNav/Model/Library/Plugin/Catalog/Layer/Filter/Category.php:54 [0x0000000011ff2da0] _initItemsData() /home/flyfish/www/flyshop/app/code/local/Extendware/EWLayeredNav/Model/Library/Plugin/Catalog/Layer/Filter/Category.php:23 [0x0000000011ff2818] _getItemsData() /home/flyfish/www/flyshop/app/code/local/Extendware/EWLayeredNav/Model/Library/Plugin/Catalog/Layer/Filter/Category.php:119 [0x0000000011ff26b0] _initItems() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Layer/Filter/Abstract.php:120 [0x0000000011ff2598] getItems() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Layer/Filter/Abstract.php:109 [0x0000000011ff2480] getItemsCount() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Block/Layer/Filter/Abstract.php:126 [0x0000000011ff22b8] getItemsCount() /home/flyfish/www/flyshop/var/cache/extendware/ewcore/overrides/Mage/Catalog/Block/Layer/View/67dcc5dfa9c44bd3a205b75a08193105.php:218 [0x0000000011ff2088] canShowOptions() /home/flyfish/www/flyshop/var/cache/extendware/ewcore/overrides/Mage/Catalog/Block/Layer/View/67dcc5dfa9c44bd3a205b75a08193105.php:233 [0x0000000011ff14f8] canShowBlock() /home/flyfish/www/flyshop/app/design/frontend/moxy/default/template/extendware/ewlayerednav/catalog/layer/view.phtml:6 [0x0000000011ff0d50] +++ dump failed [01-Apr-2012 14:27:04] [pool magento] pid 21529 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000012468ff8] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement/Pdo.php:228 [0x0000000012468d68] _execute() /home/flyfish/www/flyshop/lib/Varien/Db/Statement/Pdo/Mysql.php:110 [0x00000000124686e0] _execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement.php:300 [0x0000000012468270] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:479 [0x0000000012467c88] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Pdo/Abstract.php:238 [0x00000000124678c8] query() /home/flyfish/www/flyshop/lib/Varien/Db/Adapter/Pdo/Mysql.php:389 [0x0000000012467660] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:734 [0x0000000012467248] fetchAll() /home/flyfish/www/flyshop/lib/Varien/Data/Collection/Db.php:687 [0x00000000124668f0] _fetchAll() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php:1045 [0x0000000012466288] _loadEntities() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php:869 [0x0000000012465fb0] load() /home/flyfish/www/flyshop/app/code/core/Mage/Review/Model/Observer.php:78 [0x0000000012465d10] catalogBlockProductCollectionBeforeToHtml() /home/flyfish/www/flyshop/app/code/core/Mage/Core/Model/App.php:1303 [0x0000000012464c28] _callObserverMethod() /home/flyfish/www/flyshop/app/code/core/Mage/Core/Model/App.php:1278 [0x00000000124649e0] dispatchEvent() /home/flyfish/www/flyshop/app/Mage.php:416 [0x0000000012464290] dispatchEvent() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Block/Product/List.php:163 [0x0000000012463760] _beforeToHtml() /home/flyfish/www/flyshop/var/ait_rewrite/6bfe16ca572eea47db567910902c6209.php:864 [0x00000000124633b0] toHtml() /home/flyfish/www/flyshop/var/ait_rewrite/6bfe16ca572eea47db567910902c6209.php:584 [0x0000000012462e30] _getChildHtml() /home/flyfish/www/flyshop/var/ait_rewrite/6bfe16ca572eea47db567910902c6209.php:528 [0x0000000012462d38] getChildHtml() /home/flyfish/www/flyshop/var/cache/extendware/ewcore/overrides/Mage/Catalog/Block/Category/View/6362e7526f5dcb27e7f8b0b414b59004.php:85 [0x00000000124629f0] getProductListHtml() /home/flyfish/www/flyshop/app/code/local/Extendware/EWLayeredNav/Block/Override/Mage/Catalog/Category/View.php:20 [01-Apr-2012 14:27:55] [pool magento] pid 21536 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000011a35010] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement/Pdo.php:228 [0x0000000011a34d80] _execute() /home/flyfish/www/flyshop/lib/Varien/Db/Statement/Pdo/Mysql.php:110 [0x0000000011a346f8] _execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement.php:300 [0x0000000011a34288] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:479 [0x0000000011a33ca0] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Pdo/Abstract.php:238 [0x0000000011a338e0] query() /home/flyfish/www/flyshop/lib/Varien/Db/Adapter/Pdo/Mysql.php:389 [0x0000000011a33700] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:825 [0x0000000011a33368] fetchOne() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Resource/Entity/Type.php:71 [0x0000000011a33238] getAdditionalAttributeTable() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Resource/Entity/Attribute.php:483 [0x0000000011a32be8] getAdditionalAttributeTable() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Resource/Entity/Attribute.php:500 [0x0000000011a32860] _afterLoad() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Resource/Entity/Attribute.php:108 [0x0000000011a32330] loadByCode() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Entity/Attribute/Abstract.php:118 [0x0000000011a31350] loadByCode() /home/flyfish/www/flyshop/app/code/core/Mage/Eav/Model/Config.php:423 [0x0000000011a30ce8] getAttribute() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Helper/Output.php:156 [0x0000000011a30208] categoryAttribute() /home/flyfish/www/flyshop/app/design/frontend/base/default/template/catalog/category/view.phtml:47 [0x0000000011a2fa60] +++ dump failed [01-Apr-2012 14:27:56] [pool magento] pid 21530 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000011a35b10] updateParamDefaults() /home/flyfish/www/flyshop/var/ait_rewrite/78778b0d1ad4bf93e846365bd2fbf33f.php:276 [0x0000000011a35750] updateParamDefaults() /home/flyfish/www/flyshop/var/ait_rewrite/78778b0d1ad4bf93e846365bd2fbf33f.php:326 [0x0000000011a351f0] getSkinBaseUrl() /home/flyfish/www/flyshop/var/ait_rewrite/78778b0d1ad4bf93e846365bd2fbf33f.php:482 [0x0000000011a350a8] getSkinUrl() /home/flyfish/www/flyshop/var/ait_rewrite/6bfe16ca572eea47db567910902c6209.php:981 [0x0000000011a32468] getSkinUrl() /home/flyfish/www/flyshop/app/code/local/Extendware/EWMinify/Block/Override/Mage/Page/Html/Head.php:126 [0x0000000011a30ca8] getCssJsHtml() /home/flyfish/www/flyshop/app/code/local/Extendware/EWCore/Block/Override/Mage/Page/Html/Head.php:55 [0x0000000011a30978] getCssJsHtml() /home/flyfish/www/flyshop/app/code/local/MageWorx/SeoSuite/Block/Page/Html/Head.php:41 [0x0000000011a2fd10] getCssJsHtml() /home/flyfish/www/flyshop/app/design/frontend/moxy/default/template/rokmagemodules/rokmage-modalheader/rokmage-head.phtml:26 [0x0000000011a2f568] +++ dump failed [01-Apr-2012 14:28:28] [pool magento] pid 21527 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000010c7bba0] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement/Pdo.php:228 [0x0000000010c7b910] _execute() /home/flyfish/www/flyshop/lib/Varien/Db/Statement/Pdo/Mysql.php:110 [0x0000000010c7b288] _execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement.php:300 [0x0000000010c7ae18] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:479 [0x0000000010c7a830] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Pdo/Abstract.php:238 [0x0000000010c7a470] query() /home/flyfish/www/flyshop/lib/Varien/Db/Adapter/Pdo/Mysql.php:389 [0x0000000010c7a168] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:808 [0x0000000010c79558] fetchPairs() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Product/Collection.php:840 [0x0000000010c79240] addCountToCategories() /home/flyfish/www/flyshop/app/code/community/Mage/Catalog/Block/Navigation.php:133 [0x0000000010c71d48] getCurrentChildCategories() /home/flyfish/www/flyshop/app/design/frontend/base/default/template/rokmagemodules/rokmage-magemenus/rokmage-magemenu-left.phtml:139 [0x0000000010c715a0] +++ dump failed [01-Apr-2012 14:28:28] [pool magento] pid 21577 script_filename = /home/flyfish/www/flyshop/index.php [0x0000000011a3a8d8] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement/Pdo.php:228 [0x0000000011a3a648] _execute() /home/flyfish/www/flyshop/lib/Varien/Db/Statement/Pdo/Mysql.php:110 [0x0000000011a39fc0] _execute() /home/flyfish/www/flyshop/lib/Zend/Db/Statement.php:300 [0x0000000011a39b50] execute() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:479 [0x0000000011a39568] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Pdo/Abstract.php:238 [0x0000000011a391a8] query() /home/flyfish/www/flyshop/lib/Varien/Db/Adapter/Pdo/Mysql.php:389 [0x0000000011a38f40] query() /home/flyfish/www/flyshop/lib/Zend/Db/Adapter/Abstract.php:734 [0x0000000011a37cc0] fetchAll() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Category/Flat.php:276 [0x0000000011a37b20] _loadNodes() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Category/Flat.php:1229 [0x0000000011a379a0] getChildrenCategories() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Category.php:841 [0x0000000011a37690] getChildrenCategories() /home/flyfish/www/flyshop/app/code/community/Mage/Catalog/Block/Navigation.php:130 [0x0000000011a30198] getCurrentChildCategories() /home/flyfish/www/flyshop/app/design/frontend/base/default/template/rokmagemodules/rokmage-magemenus/rokmage-magemenu-left.phtml:139 [0x0000000011a2f9f0] +++ dump failed [01-Apr-2012 14:28:48] [pool magento] pid 21629 script_filename = /home/flyfish/www/flyshop/index.php [0x00002ac987e2cb48] _loadPrices() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Product/Type/Configurable/Attribute/Collection.php:252 [0x00002ac987e2c660] _loadPrices() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Resource/Product/Type/Configurable/Attribute/Collection.php:132 [0x00002ac987e2bf20] _afterLoad() /home/flyfish/www/flyshop/lib/Varien/Data/Collection/Db.php:536 [0x00002ac987e2ba28] load() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:253 [0x00002ac987e2aee8] getConfigurableAttributes() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:330 [0x00002ac987e2ab10] getUsedProducts() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php:458 [0x00002ac987e2a990] isSalable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1264 [0x00002ac987e2a618] isAvailable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1244 [0x00002ac987e2a528] isSalable() /home/flyfish/www/flyshop/app/code/core/Mage/Catalog/Model/Product.php:1308 [0x00002ac987e28f18] isSaleable() /home/flyfish/www/flyshop/app/design/frontend/moxy/default/template/rokmagemodules/rokmage-categoryview/rokmage-categoryview.phtml:122 [0x00002ac987e28770] +++ dump failed ___________________________________________ A snippet of the Latest php-fpm error log: [01-Apr-2012 14:26:12] WARNING: [pool magento] child 21537, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.265105 sec), logging [01-Apr-2012 14:26:12] ERROR: failed to ptrace(PEEKDATA) pid 21537: Input/output error (5) [01-Apr-2012 14:26:44] WARNING: [pool magento] child 21531, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.268434 sec), logging [01-Apr-2012 14:26:44] ERROR: failed to ptrace(PEEKDATA) pid 21531: Input/output error (5) [01-Apr-2012 14:27:01] WARNING: [pool magento] child 21528, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (6.656633 sec), logging [01-Apr-2012 14:27:01] ERROR: failed to ptrace(PEEKDATA) pid 21528: Input/output error (5) [01-Apr-2012 14:27:04] WARNING: [pool magento] child 21529, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.211136 sec), logging [01-Apr-2012 14:27:55] WARNING: [pool magento] child 21536, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.207001 sec), logging [01-Apr-2012 14:27:55] ERROR: failed to ptrace(PEEKDATA) pid 21536: Input/output error (5) [01-Apr-2012 14:27:56] WARNING: [pool magento] child 21530, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.503186 sec), logging [01-Apr-2012 14:27:56] ERROR: failed to ptrace(PEEKDATA) pid 21530: Input/output error (5) [01-Apr-2012 14:28:28] WARNING: [pool magento] child 21577, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.722625 sec), logging [01-Apr-2012 14:28:28] WARNING: [pool magento] child 21527, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.122326 sec), logging [01-Apr-2012 14:28:28] ERROR: failed to ptrace(PEEKDATA) pid 21527: Input/output error (5) [01-Apr-2012 14:28:28] ERROR: failed to ptrace(PEEKDATA) pid 21577: Input/output error (5) [01-Apr-2012 14:28:48] WARNING: [pool magento] child 21629, script '/home/flyfish/www/flyshop/index.php' (request: "GET /flyshop/index.php") executing too slow (5.446961 sec), logging [01-Apr-2012 14:28:48] ERROR: failed to ptrace(PEEKDATA) pid 21629: Input/output error (5) _____________________________________________ I also noticed that the server is not using much memory: Mem: 16777216k total, 1204040k used, 15573176k free My.conf settings: query_cache_size = 128M innodb_buffer_pool_size = 512M open-files-limit = 8192 table_cache=4096 I just noticed that someone changed my innodb_buffer_pool_size to 512M. Shouldn't this be set to 80% of available ram? So I have 16gb ram so it should be set at 12G; however, I set it at 10G. What do you think? I made that change and restart everything. Php-fpm is still spiking cpu. Here is just 1 php-fpm process: 23942 user 17 0 507m 99m 27m R 90.9%CPU 0.6 0:03.46 php-fpm I'm sure there may be more information you will need to help, so just let me know what you guys need to help me figure this out. Thank you.

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  • Copy one db diagram from one db to another on different servers? (Same db)

    - by sah302
    I used the copy database wizard to copy my database from our test server to our production server, the database copied everything fine except for the diagram. Okay no problem, first I make sure the target database on production has the support objects created to use database diagraming. Then I select to import data from the other database and chose the dbo.sysdiagrams.Go through with the rest of the import data wizard, but then I get the following error: Validating (Error) Messages Error 0xc0202049: Data Flow Task: Failure inserting into the read-only column "diagram_id". (SQL Server Import and Export Wizard) Error 0xc0202045: Data Flow Task: Column metadata validation failed. (SQL Server Import and Export Wizard) Error 0xc004706b: Data Flow Task: "component "Destination - sysdiagrams" (31)" failed validation and returned validation status "VS_ISBROKEN". (SQL Server Import and Export Wizard) Error 0xc004700c: Data Flow Task: One or more component failed validation. (SQL Server Import and Export Wizard) Error 0xc0024107: Data Flow Task: There were errors during task validation. (SQL Server Import and Export Wizard) So apparently it didn't like that. What's the problem? I am pretty beginner in SQL Server and only do stuff via the GUI usually so am not sure what to do at this point. The databases are the same, but on different servers. Thanks!

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  • Document Map in MS Word 2007 going bonkers

    - by rzlines
    I'm working on a large project report in Microsoft Word 2007 and have been using the document map to generate the index. I have been carefully selecting the headers that need to be added to the document map but I saved the document and opened it up today to work on it - the document map has added whatever it pleases there. This is a temporary fix from a post that I found after extensive searching that works, but when I save and close the document and open it up again I face the same dilemma: I have noticed that when Word stuffs up the document map after opening the file, I can undo this by using the UNDO button. Word calls it ’Autoformat’. I have also fixed a file that has had the document map screwed permanently (i.e saved with it) by selecting all (CTRL+A),selecting the PARAGRAPH drop down menu in the HOME TAB and in the OUTLINE drop down box, selecting ’Body Text’. This removed all the problems and did not seem to affect my outline level paragraph headings. This is also another temporary fix but I have to be on my toes not to let Word auto format at the start of the document. I also can't afford to entirely turn off auto format as I need it. I’ve solved this problem for me. When you open the file, a progress bar at the bottom first says Opening (ESC to Cancel) and then it says Word is formatting the document (ESC to Cancel). If I cancel the second process, TOC fine. No cancelling, TOC screwed. Can anyone work out how to switch off the autoformatting? This is the post in which i found for the temporary fix

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  • Web workflow solution - how should I approach the design?

    - by Tom Pickles
    We've been tasked with creating a web based workflow tool to track change management. It has a single workflow with multiple synchronous tasks for the most part, but branch out at a point to tasks running in parallel which meet up later on. There will be all sorts of people using the application, and all of them will need to see their outstanding tasks for each change, but only theirs, not others. There will also be a high level group of people who oversee all changes, so need to see everything. They will need to see tasks which have not been done in the specified time, who's responsible etc. The data will be persisted to a SQL database. It'll all be put together using .Net. I've been trying to learn and implement OOP into my designs of late, but I'm wondering if this is moot in this instance as it may be better to have the business logic for this in stored procedures in the DB. I could use POCO's, a front end layer and a data access layer for the web application and just use it as a mechanism for CRUD actions on the DB, then use SP's fired in the DB to apply the business rules. On the other hand, I could use an object oriented design within the web app, but as the data in the app is state-less, is this a bad idea? I could try and model out the whole application into a class structure, implementing interfaces, base classes and all that good stuff. So I would create a change class, which contained a list of task classes/types, which defined each task, and implement an ITask interface etc. Put end-user types into the tasks to identify who should be doing what task. Then apply all the business logic in the respective class methods etc. What approach do you guys think I should be using for this solution?

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  • Are certain problems solved more elegantly with AOP?

    - by Winston Ewert
    I've come across the idea of Aspect Oriented Programming, and I have some concerns with it. The basic idea seems to be that we want to take cross-cutting concerns which aren't well modularized using object and modularize them. That is all very fine and well. But the implementation of AOP seems to be that of modifying code from outside of the module. So, for example, an aspect could be written that changes what happens when a particular object is passed as a parameter in a function. This seems to go directly against the idea of modules. I should not be able to modify a module's behavior from outside of that module, otherwise the whole point of modules are overturned. But aspects seem to be doing exactly that! Basically, aspects seems to be a form of code patching. It may useful for some quick hacks; but, as a general principle perhaps its not something you want to do. Aspect Oriented Programming seems to me taking a bad practice and raising to a general design principle. Is AOP a good practice? Are certain programming problems solved more elegantly with AOP?

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  • Why is an anemic domain model considered bad in C#/OOP, but very important in F#/FP?

    - by Danny Tuppeny
    In a blog post on F# for fun and profit, it says: In a functional design, it is very important to separate behavior from data. The data types are simple and "dumb". And then separately, you have a number of functions that act on those data types. This is the exact opposite of an object-oriented design, where behavior and data are meant to be combined. After all, that's exactly what a class is. In a truly object-oriented design in fact, you should have nothing but behavior -- the data is private and can only be accessed via methods. In fact, in OOD, not having enough behavior around a data type is considered a Bad Thing, and even has a name: the "anemic domain model". Given that in C# we seem to keep borrowing from F#, and trying to write more functional-style code; how come we're not borrowing the idea of separating data/behavior, and even consider it bad? Is it simply that the definition doesn't with with OOP, or is there a concrete reason that it's bad in C# that for some reason doesn't apply in F# (and in fact, is reversed)? (Note: I'm specifically interested in the differences in C#/F# that could change the opinion of what is good/bad, rather than individuals that may disagree with either opinion in the blog post).

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  • Benefits of classic OOP over Go-like language

    - by tylerl
    I've been thinking a lot about language design and what elements would be necessary for an "ideal" programming language, and studying Google's Go has led me to question a lot of otherwise common knowledge. Specifically, Go seems to have all of the interesting benefits from object oriented programming without actually having any of the structure of an object oriented language. There are no classes, only structures; there is no class/structure inheritance -- only structure embedding. There aren't any hierarchies, no parent classes, no explicit interface implementations. Instead, type casting rules are based on a loose system similar to duck-typing, such that if a struct implements the necessary elements of a "Reader" or a "Request" or an "Encoding", then you can cast it and use it as one. Does such a system obsolete the concept of OOP? Or is there something about OOP as implemented in C++ and Java and C# that is inherently more capable, more maintainable, somehow more powerful that you have to give up when moving to a language like Go? What benefit do you have to give up to gain the simplicity that this new paradigm represents?

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  • Composing programs from small simple pieces: OOP vs Functional Programming

    - by Jay Godse
    I started programming when imperative programming languages such as C were virtually the only game in town for paid gigs. I'm not a computer scientist by training so I was only exposed to Assembler and Pascal in school, and not Lisp or Prolog. Over the 1990s, Object-Oriented Programming (OOP) became more popular because one of the marketing memes for OOP was that complex programs could be composed of loosely coupled but well-defined, well-tested, cohesive, and reusable classes and objects. And in many cases that is quite true. Once I learned object-oriented programming my C programs became better because I structured them more like classes and objects. In the last few years (2008-2014) I have programmed in Ruby, an OOP language. However, Ruby has many functional programming (FP) features such as lambdas and procs, which enable a different style of programming using recursion, currying, lazy evaluation and the like. (Through ignorance I am at a loss to explain why these techniques are so great). Very recently, I have written code to use methods from the Ruby Enumerable library, such as map(), reduce(), and select(). Apparently this is a functional style of programming. I have found that using these methods significantly reduce code volume, and make my code easier to debug. Upon reading more about FP, one of the marketing claims made by advocates is that FP enables developers to compose programs out of small well-defined, well-tested, and reusable functions, which leads to less buggy code, and low code volume. QUESTIONS: Is the composition of complex program by using FP techniques contradictory to or complementary to composition of a complex program by using OOP techniques? In which situations is OOP more effective, and when is FP more effective? Is it possible to use both techniques in the same complex program? Do the techniques overlap or contradict each other?

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  • How to REALLY start thinking in terms of objects?

    - by Mr Grieves
    I work with a team of developers who all have several years of experience with languages such as C# and Java. Most of them are young enough to have been shown OOP as a standard way to develop software in university and are very comfortable with concepts such as inheritance, abstraction, encapsulation and polymorphism. Yet, many of them, and I have to include myself, still tend to create classes which are meant to be used in a very functional fashion. The resulting software is often several smaller classes which correctly represent business objects which get passed through larger classes which only supply ways to modify and use those objects (functions). Large complex difficult-to-maintain classes named Manager are usually the result of such behaviour. I can see two theoretical reasons why people might write this type of code: It's easy to start thinking of everything in terms of the database Deep down, for me, a computer handling a web request feels more like a functional operation than an object oriented operation when you think about Request Handlers, Threads, Processes, CPU Cores and CPU operations... I want source code which is easy to read and easy to modify. I have seen excellent examples of OO code which meet these objectives. How can I start writing code like this? How I can I really start thinking in an object oriented fashion? How can I share such a mentality with my colleagues?

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  • SQL DB design to support user feeds (in application like facebook)

    - by Yoav
    I have a social network server with a MySql DB. I want to show the users feeds like done in Facebook. Example - UserX now Friend with userY, userX did like on postX etc. Currently I have table: C1 : UserId C2 : LogType (now friend, did like etc) C3 : ObjectId (Can be userId or postId) - set depending on the LogType. Currently to get all related logs to show to the user I do the following queries: 1. Get All user Friends userIds 2. Query all rows which C1 is in userIds (I query completed) 3. Scan the DB and see - if LogType equals DidLike, check if post's OwnerId is the userId - if yes add it to logs. And so on. Obvious this is not efficient at all. I am looking for a better way. I thought I had in mind: Create a new table (in addition to the Log table) C1 : UserId C2 : LogId (from Log table) C3 : UserID of the one who did the action When querying logs - look in the table and get related Logs (by LogId) from LogTable. Updating the table: Whenever user doing action that should be in the log: 1. Add the Log entry to LogTable. 2. Scan the DB and see which users are interested with the Log (Who my friends are, Who is the owner of the post) and add related entries to the new table. (must be done in BG). 3. If user UNFRIEND another user - then look in the logs for all rows where C3 == UNFRIENDED user id and delete them. Any opinions? Other suggestions?

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  • Object oriented design of game in Java: How to handle a party of NPCs?

    - by Arvanem
    Hi folks, I'm making a very simple 2D RPG in Java. My goal is to do this in as simple code as possible. Stripped down to basics, my class structure at the moment is like this: Physical objects have an x and y dimension. Roaming objects are physical objects that can move(). Humanoid objects are roaming objects that have inventories of GameItems. The Player is a singleton humanoid object that can hire up to 4 NPC Humanoids to join his or her party, and do other actions, such as fight non-humanoid objects. NPC Humanoids can be hired by the Player object to join his or her party, and once hired can fight for the Player. So far I have given the Player class a "party" ArrayList of NPC Humanoids, and the NPC Humanoids class a "hired" Boolean. However, my fight method is clunky, using an if to check the party size before implementing combat, e.g. public class Player extends Humanoids { private ArrayList<Humanoids> party; // GETTERS AND SETTERS for party here //... public void fightEnemy(Enemy eneObj) { if (this.getParty().size() == 0) // Do combat without party issues else if (this.getParty().size() == 1) // Do combat with party of 1 else if (this.getParty().size() == 2) // Do combat with party of 2 // etc. My question is, thinking in object oriented design, am I on the right track to do this in as simple code as possible? Is there a better way?

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  • Is it true that in most Object Oriented Programming Languages, an "i" in an instance method always r

    - by Jian Lin
    In the following code: <script type="text/javascript"> var i = 10; function Circle(radius) { this.r = radius; this.i = radius; } Circle.i = 123; Circle.prototype.area = function() { alert(i); } var c = new Circle(1); var a = c.area(); </script> What is being alerted? The answer is at the end of this question. I found that the i in the alert call either refers to any local (if any), or the global variable. There is no way that it can be the instance variable or the class variable even when there is no local and no global defined. To refer to the instance variable i, we need this.i, and to the class variable i, we need Circle.i. Is this actually true for almost all Object oriented programming languages? Any exception? Are there cases that when there is no local and no global, it will look up the instance variable and then the class variable scope? (or in this case, are those called scope?) the answer is: 10 is being alerted.

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  • Simple form validation. Object-oriented.

    - by kalininew
    Problem statement: It is necessary for me to write a code, whether which before form sending will check all necessary fields are filled. If not all fields are filled, it is necessary to allocate with their red colour and not to send the form. Now the code exists in such kind: function formsubmit(formName, reqFieldArr){ var curForm = new formObj(formName, reqFieldArr); if(curForm.valid) curForm.send(); else curForm.paint(); } function formObj(formName, reqFieldArr){ var filledCount = 0; var fieldArr = new Array(); for(i=reqFieldArr.length-1; i>=0; i--){ fieldArr[i] = new fieldObj(formName, reqFieldArr[i]); if(fieldArr[i].filled == true) filledCount++; } if(filledCount == fieldArr.length) this.valid = true; else this.valid = false; this.paint = function(){ for(i=fieldArr.length-1; i>=0; i--){ if(fieldArr[i].filled == false) fieldArr[i].paintInRed(); else fieldArr[i].unPaintInRed(); } } this.send = function(){ document.forms[formName].submit(); } } function fieldObj(formName, fName){ var curField = document.forms[formName].elements[fName]; if(curField.value != '') this.filled = true; else this.filled = false; this.paintInRed = function(){ curField.addClassName('red'); } this.unPaintInRed = function(){ curField.removeClassName('red'); } } Function is caused in such a way: <input type="button" onClick="formsubmit('orderform', ['name', 'post', 'payer', 'recipient', 'good'])" value="send" /> Now the code works. But I would like to add "dynamism" in it. That it is necessary for me: to keep an initial code essentially, to add listening form fields (only necessary for filling). For example, when the field is allocated by red colour and the user starts it to fill, it should become white. As a matter of fact I need to add listening of events: onChange, blur for the blank fields of the form. As it to make within the limits of an initial code. If all my code - full nonsense, let me know about it. As to me it to change using object-oriented the approach.

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