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  • User sessions with jquery and Ajax

    - by John
    I am using jquery to set a session, i have a php page which gets the values of the person logging. The value in the session array, is then used in another page where, it is stored in a hidden field for database entry.The problem is, the value is not set unless you refresh the page of which beats the purpose of AJAX and Jquery.Again,the session seems to be one session behind.How can I do this without page refresh/ reload?

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  • mysql db image convert to file

    - by ntan
    Hi i am writing a converter from Oracle to mysql In Oracle the images are stored in db. I want to read the content of the image and save to file system I suppose that i have to read the blob entry and using php file commands create the file (am i right) What about image type. Should i save as jpg (what if the store image is not jpg) Any suggestion are welcome

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  • mysql composite unique on FK's

    - by m2o
    I want to implement the following constraints in mysql: create table TypeMapping( ... constraint unique(server_id,type_id), constraint foreign key(server_id) references Server(id), constraint foreign key(type_id) references Type(id) ); This throws a 'ERROR 1062 (23000): Duplicate entry '3-4' for key 'server_id'' when I issue an insert/update that would break the constraint. Is this type of constraint even possible? If so how? Thank you.

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  • Proactively using 'lines of code' (LOC) metric in your software-development process?

    - by manuel aldana
    hi there, I find the LOC (lines of code) metric a simple but nice metric to get an overview of software codebase complexity (see also blog-entry 'implications of lines-of-code'). I wondered how many of you out there are using this metric as a centric part for retrospective (for removing unused functionality or dead code). I think creating awareness that more lines-of-code mean more complexity in maintenance and extension is valuable.

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  • WPF Databound Listbox

    - by Jeff
    I have a listbox bound to a list of objects for a data entry screen. The item template includes textblocks, a checkbox and comboboxes. When the listbox is populated I would like to change the foreground color of the textblocks to red if object.value1 = true and object.value2 = 0. Any ideas?

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  • Flatten date range memberships retaining only the highest priority membership (TRANSACT-SQL)

    - by shadowranger
    Problem statement: A table contains an item_id, a category_id and a date range (begin_date and end_date). No item may be in more than one category on any given date (in general; during daily rebuilding it can be in an invalid state temporarily). By default, all items are added (and re-added if removed) to a category (derived from outside data) automatically on a daily basis, and their membership in that category matches the lifespan of the item (items have their own begin and end date, and usually spend their entire lives in the same category, which is why this matches). For items in category X, it is occasionally desirable to override the default category by adding them to category Y. Membership in category Y could entirely replace membership in category X (that is, the begin and end dates for membership in category Y would match the begin and end dates of the item itself), or it could override it for an arbitrary period of time (at the beginning, middle or end the item's lifespan, possibly overriding for short periods at multiple times). Membership in category Y is not renewed automatically and additions to that category is done by manual data entry. Every day, when category X is rebuilt, we get an overlap, where any item in category Y will now be in category X as well (which is forbidden, as noted previously). Goal: After each repopulation of category X (which is done in a rather complicated and fragile manner, and ideally would be left alone), I'm trying to find an efficient means of writing a stored procedure that: Identifies the overlaps Changes existing entries, adds new ones where necessary (such as in the case where an item starts in category X, switches to category Y, then eventually switches back to category X before ending), or removes entries (when an item is in category Y for its entire life) such that every item remains in category Y (and only Y) where specified, while category X membership is maintained when not overridden by category Y. Does not affect memberships of categories A, B, C, Z, etc., which do not have override categories and are built separately, by completely different rules. Note: It can be assumed that X membership covers the entire lifespan of the item before this procedure is called, so it is unnecessary to query any data outside this table. Bonus credit: If for some reason there are two adjacent or overlapping memberships in for the same item in category Y, stitching them together into a single entry is appreciated, but not necessary. Example: item_id category_id begin_date end_date 1 X 20080101 20090628 1 Y 20090101 20090131 1 Y 20090601 20090628 2 X 20080201 20080731 2 Y 20080201 20080731 Should become: item_id category_id begin_date end_date 1 X 20080101 20081231 1 Y 20090101 20090131 1 X 20090201 20090531 1 Y 20090601 20090628 2 Y 20080201 20080731 If it matters, this needs to work on SQL Server 2005 and SQL Server 2008

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  • EntryPointNotFoundException when using TaskDialog in C#.

    - by horsedrowner
    I'm using the following code to call a TaskDialog. [DllImport("ComCtl32", CharSet = CharSet.Unicode, PreserveSig = false)] internal static extern void TaskDialogIndirect( [In] ref TASKDIALOGCONFIG pTaskConfig, [Out] out int pnButton, [Out] out int pnRadioButton, [Out] out bool pfVerificationFlagChecked); However, I get the exception "Unable to find an entry point named 'TaskDialogIndirect' in DLL 'ComCtl32'." I took this code. I am using Windows 7 x64 (RC). What am I doing wrong?

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  • Best way to detect duplicates when using Spring Hibernate Template

    - by Dean Povey
    We have an application which needs to detect duplicates in certain fields on create. We are using Hibernate as our persistence layer and using Spring's HibernateTemplate. My question is whether it is better to do so an upfront lookup for the item before creating, or to attempt to catch the DataIntegrityViolation exception and then check if this is caused by a duplicate entry.

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  • Querying Last Entries group by DeviceId

    - by TTCG
    I have the database table logs as the following: I would like to extract the last entry of device, pollDate, status. For eg. deviceId, pollDate, status 1, 2010-95-06 10:53:28, 1 3, 2010-95-06 10:26:28, 1 I tried to run the following query but the distinct only selects the first records, not the latest SELECT DISTINCT deviceId, pollDate, status FROM logs GROUP By deviceId ORDER BY pollDate DESC So, could you please help me to extract the latest entries from the table? Thanks.

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  • MySQL Select statement Where table1.id != table2.id

    - by Michael
    I have a table of data which has posts, then I have a separate table of data which has deleted posts. What happens when a post is deleted is that it's ID get's added to the deleted table rather than removing the post entry. What is a clean efficient way of selecting all the posts from the posts table without selecting the ones that have their ID in the deleted table

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  • display one-to-many relationship for a model in Django admin (list mode)

    - by theactiveactor
    In Django admin site, when listing all the objects for a given model, I know we can customize which columns get displayed for a ModelA via list_display Say that ModelA has a one-to-many relationship with ModelB. I would like to add another column on the listing page for ModelA, where each entry is a URL pointing to all objects of ModelB having a foreign key relationship on corresponding instance of Model A in that row. How can I achieve this customization with the admin app?

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  • How to keep iPhone app out of iPad store?

    - by Eric
    I have an iPhone app that I have started to turn into a universal app, however the process is not complete and I want to release an update to the iPhone version. I know that you can specify device capabilities in the Info.plist file to restrict your app to certain devices, but how can I do this to prevent the unfinished universal version from appearing in the iPad store? Is checking the LSRequiresiPhoneOS BOOL entry (in the Info.plist file) enough? Thanks!

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  • Need help accessing PHP DOM elements

    - by Michael Pasqualone
    Hey guys, I have the following HTML structure that I am trying to pull information from: // Product 1 <div class="productName"> <span id="product-name-1">Product Name 1</span> </div> <div class="productDetail"> <span class="warehouse">Warehouse 1, ACT</span> <span class="quantityInStock">25</span> </div> // Product 2 <div class="productName"> <span id="product-name-2">Product Name 2</span> </div> <div class="productDetail"> <span class="warehouse">Warehouse 2, ACT</span> <span class="quantityInStock">25</span> </div> … // Product X <div class="productName"> <span id="product-name-X">Product Name X</span> </div> <div class="productDetail"> <span class="warehouse">Warehouse X, ACT</span> <span class="quantityInStock">25</span> </div> I don't have control of the source html and as you'll see productName and it's accompanying productDetail are not contained within a common element. Now, I am using the following php code to try and parse the page. $html = new DOMDocument(); $html->loadHtmlFile('product_test.html'); $xPath = new DOMXPath($html); $domQuery = '//div[@class="productName"]|//div[@class="productDetail"]'; $entries = $xPath->query($domQuery); foreach ($entries as $entry) { echo "Detail: " . $entry->nodeValue) . "<br />\n"; } Which prints the following: Detail: Product Name 1 Detail: Warehouse 1, ACT Detail: 25 Detail: Product Name 2 Detail: Warehouse 2, ACT Detail: 25 Detail: Product Name X Detail: Warehouse X, ACT Detail: 25 Now, this is close to what I want. But I need to do some processing on each Product, Warehouse and Quantity stock and can't figure out how to parse it out into separate product groups. The final output I am after is something like: Product 1: Name: Product Name 1 Warehouse: Warehouse 1, ACT Stock: 25 Product 2: Name: Product Name 2 Warehouse: Warehouse 2, ACT Stock: 25 I can't just figure it out, and I can't wrap my head around this DOM stuff as the elements don't quite work the same as a standard array. If anyone can assist, or point me in the right direction I will be ever appreciative.

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  • amazon simpledb with aws-sdb-proxy suitable for high traffic production app?

    - by z3cko
    i am using amazon simpledb with the aws_sdb gem and aws-sdb proxy as outlined in a documentation from amazon with ruby on rails and a local aws proxy that runs on webrick (providing a bridge with ActiveResource). see http://developer.amazonwebservices.com/connect/entry.jspa?externalID=1242 i am wondering if the aws-sdb-proxy (webrick!) is suitable for high traffic load, since webrick is supposed to be a development server. anyone has comments or experiences?

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  • Expanding the xamwebgrid row to show additional details

    - by user252160
    I have the following idea: when the user clicks on the more... button of a grid row, the row must expand into a detailed state that shows additional details for the current entry. I know that xamwebgrid provides an expand command, but isn't it just for hierarchical data purposes? How can I display some movie screenshots let's say, only in expanded view ?

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  • Generate MetaData with ANT

    - by Neil Foley
    I have a folder structure that contains multiple javascript files, each of these files need a standard piece of text at the top = //@include "includes.js" Each folder needs to contain a file named includes.js that has an include entry for each file in its directory and and entry for the include file in its parent directory. I'm trying to achive this using ant and its not going too well. So far I have the following, which does the job of inserting the header but not without actually moving or copying the file. I have heard people mentioning the <replace> task to do this but am a bit stumped. <?xml version="1.0" encoding="UTF-8"?> <project name="JavaContentAssist" default="start" basedir="."> <taskdef resource="net/sf/antcontrib/antcontrib.properties"> <classpath> <pathelement location="C:/dr_workspaces/Maven Repository/.m2/repository/ant-contrib/ant-contrib/20020829/ant-contrib-20020829.jar"/> </classpath> </taskdef> <target name="start"> <foreach target="strip" param="file"> <fileset dir="${basedir}"> <include name="**/*.js"/> <exclude name="**/includes.js"/> </fileset> </foreach> </target> <target name="strip"> <move file="${file}" tofile="${a_location}" overwrite="true"> <filterchain> <striplinecomments> <comment value="//@" /> </striplinecomments> <concatfilter prepend="${basedir}/header.txt"> </concatfilter> </filterchain> </move> </target> </project> As for the generation of the include files in the dir I'm not sure where to start at all. I'd appreciate if somebody could point me in the right direction.

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  • 3 page longest path on a website

    - by Kazoom
    i have a log file which maintains source entry for each page.all the pages share the common file. source means from what page did user arrive on the target page. I want to find the most common 3 page path for all the pages on the website. Example log file: source Target 1 2 1 3 2 1 3 2 3 2 2 1 The most common 3 page path here was from 3 to 2 to 1.

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  • What is faster in MySQL? WHERE sub request = 0 or IN list

    - by Nicolas Manzini
    Hello I was wondering what is better in MySQL. I have a SELECT querry that exclude every entry associated to a banned userID currently I have a subquerry clause in the WHERE statement that goes like AND (SELECT COUNT(*) FROM TheBlackListTable WHERE userID = userList.ID AND blackListedID = :userID2 ) = 0 Which will accept every userID not present in the TheBlackListTable Would it be faster to retrieve first all Banned ID in a previous request and replace the previous clause by AND creatorID NOT IN listOfBannedID Thank you!

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  • MongoDB ruby dates

    - by MB
    I have a collection with an index on :created_at (which in this particular case should be a date) From rails what is the proper way to save an entry and then retrieve it by the date? I'm trying something like: Model: field :created_at, :type = Time script: Col.create(:created_at = Time.parse(another_model.created_at).to_s and Col.find(:all, :conditions = { :created_at = Time.parse(same thing) }) and it's not returning anything

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  • Normalizing Item Names & Synonyms

    - by RabidFire
    Consider an e-commerce application with multiple stores. Each store owner can edit the item catalog of his store. My current database schema is as follows: item_names: id | name | description | picture | common(BOOL) items: id | item_name_id | picture | price | description | picture item_synonyms: id | item_name_id | name | error(BOOL) Notes: error indicates a wrong spelling (eg. "Ericson"). description and picture of the item_names table are "globals" that can optionally be overridden by "local" description and picture fields of the items table (in case the store owner wants to supply a different picture for an item). common helps separate unique item names ("Jimmy Joe's Cheese Pizza" from "Cheese Pizza") I think the bright side of this schema is: Optimized searching & Handling Synonyms: I can query the item_names & item_synonyms tables using name LIKE %QUERY% and obtain the list of item_name_ids that need to be joined with the items table. (Examples of synonyms: "Sony Ericsson", "Sony Ericson", "X10", "X 10") Autocompletion: Again, a simple query to the item_names table. I can avoid the usage of DISTINCT and it minimizes number of variations ("Sony Ericsson Xperia™ X10", "Sony Ericsson - Xperia X10", "Xperia X10, Sony Ericsson") The down side would be: Overhead: When inserting an item, I query item_names to see if this name already exists. If not, I create a new entry. When deleting an item, I count the number of entries with the same name. If this is the only item with that name, I delete the entry from the item_names table (just to keep things clean; accounts for possible erroneous submissions). And updating is the combination of both. Weird Item Names: Store owners sometimes use sentences like "Harry Potter 1, 2 Books + CDs + Magic Hat". There's something off about having so much overhead to accommodate cases like this. This would perhaps be the prime reason I'm tempted to go for a schema like this: items: id | name | picture | price | description | picture (... with item_names and item_synonyms as utility tables that I could query) Is there a better schema you would suggested? Should item names be normalized for autocomplete? Is this probably what Facebook does for "School", "City" entries? Is the first schema or the second better/optimal for search? Thanks in advance! References: (1) Is normalizing a person's name going too far?, (2) Avoiding DISTINCT

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