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• One way Has-Many-Through

  - by Hock

  Hello, I have a Category, a Subcategory and a Product model. I have: Category has_many Subcategories Subcategory has_many Products Subcategory belongs_to Category Product belongs_to Subcategory Is there a way to have something like Category has_many Projects through Subcategories ? The 'normal' rails way wouldn't work because "subcategory" doesn't belongs to product so product does not have a subcategory_id field. Instead, I need the query to be something like SELECT * FROM products WHERE id IN category.subcategory_ids Is there a way to do that? Thanks, Nicolás Hock Isaza

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• Converting string to datetime

  - by duder

  I'm trying to enter a date in a mysql table `ssdate` datetime The function that produces the date can output it in 3 formats: 1276142400000 Thu Jun 10 00:00:00 GMT-0400 2010 Fri Jun 4 2010 I'm wondering which of these would be easiest to convert to this field format? Since I'm trying to save only the date, is there a better option than datetime that would work with one of these output formats?

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• Autocomplete a textbox in c#

  - by Suryakavitha

  Im trying to autocomplete an textbox .Im retrieve values from Access Database .Jus one field from Datatable.. If anyone can help me. Thanks in advance

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• how to display fixed dropdown in django admin?

  - by FurtiveFelon

  Hi all, I would like to display priority information in a drop down. Currently i am using a integer field to store the priority, but i would like to display high/medium/low instead of letting user type in a priority. A way to approximate this is to use a Priority database which stores 3 elements, 1:high, 2:medium, 3:low, but it seems like an overkill. Any easier way would be much appreciated! Jason

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• jQuery - auto size text input (not textarea!)

  - by michal

  Hi, How do I auto-resize the input type="text" field with jQuery? I want it to be like 100px wide at the start, then make it auto-widening as user inputs text... is that possible?

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• Most optimal way to convert to date

  - by IMHO

  I have legacy system where all date fields are maintained in YMD format. Example: 20101123 this is date: 11/23/2010 I'm looking for most optimal way to convert from number to date field. Here is what I came up with: declare @ymd int set @ymd = 20101122 select @ymd, convert(datetime, cast(@ymd as varchar(100)), 112) This is pretty good solution but I'm wandering if someone has better way doing it

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• XSL Grouping Problem

  - by Wail

  I have the following xml and I an trying to perform the following 1- Group By the first Field where id="1923" if the value attribute is the same 2- and average all the fields with id="3095" using the value attribute 3- and average all the fields with id="3095" using the value attribute Trying to produce the following: Test 1 5.33 5.33 Test 2 3 4 Test 3 4 4

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• How can I securely check if a username is already taken?

  - by Geo

  I have a form where someone can create a new user. I'd like to add some AJAX to check if a username is taken, as soon as the input field loses focus. I'm not really sure how to go about this, as this could pave the way to bruteforce attack, since you could check for any username and see whether or not it exists. Any suggestions?

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• Is Sun Java Certification worth the expense? Will it help me start a programming career?

  - by AlexCombas

  The certification's cost between $300-400 per exam which is pretty expensive. I'm still a java newb but eventually I would like to get a job in the field of computer programming and I'm wondering if the Sun Java certifications would help. Especially considering that I do not have the time or money to get a degree.

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• different small js files per page VS. 1x site-wide js file?

  - by Haroldo

  Different pages of my site have different js needs (plugins mainly), some need a lightbox, some dont, some need a carousel, some dont etc. With regards to pageloading speed should i option 1 - reference each js file when it is needed: so one page might have: <script type="text/javascript" src="js/carousel/scrollable.js"></script> <script type="text/javascript" src="js/jquery.easydrag.js"></script> <script type="text/javascript" src="js/colorbox/jquery.colorbox-min.js"></script> and another have: <script type="text/javascript" src="st_wd_assets/js/carousel/scrollable.js"></script> <script type="text/javascript" src="st_wd_assets/js/typewatch.js"></script> option 2 - combine and compress into one site_wide.js file: so each page would reference: <script type="text/javascript" src="js/site_wide.js"></script> there would be unused selectors/event listeners though, how bad is this? I would include any plugin notes/accreditations at the top of the site_wide.js file

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• Linq - get compare with transliterated value of fields

  - by Maxim

  Hi! I have a table (sql server). One of its columns ('Name') Contains Cyrillic values. From parameters i recieve value, that contains in this field but the are transliterated. i mean something like: var q = from r in m_DataContext.Table where CTransliteration.Transliterate(r.Name).Contains(trans_text) select r; How can i transliterate value on-fly?

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• Does clustered index on foreign key column increase join performance vs non-clustered ?

  - by alpav

  In many places it's recommended that clustered indexes are better utilized when used to select range of rows using BETWEEN statement. When I select joining by foreign key field in such a way that this clustered index is used, I guess, that clusterization should help too because range of rows is being selected even though they all have same clustered key value and BETWEEN is not used. Considering that I care only about that one select with join and nothing else, am I wrong with my guess ?

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• SQL: convert backup file from copy format to insert format

  - by takeshin

  I have a PostgreSQL backup made with PHPPgadmin using Export Copy (instead Copy SQL which is actually what I need). File contains entries like this: COPY tablename(id, field) FROM stdin; ... How to convert this file to SQL format? INSERT INTO tablename... I want to use Pgadmin to to import this file using execute SQL command.

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• Do you use ASCII art to decorate your code?

  - by CiNN

  Do you use ASCII art to decorate your code? .-"""-. ' \ |,. ,-. | |()L( ()| | license goes here |,' `".| | |.___.',| ` .j `--"' ` `. / ' ' \ / / ` `. / / ` . / / l | . , | | ,"`. .| | _.' ``. o | `..-'l | `.`, | `. | `. __.j ) |__ |--""___| ,-' `"--...,+"""" `._,.-' mh www /n n\ /\ |/^\| / \ warning notes | , | ^||^ \_/ || _U_ || /` `''-----'P3 / |. .|''-----"|| \'| | || \| | || E | || /#####\ || /#####\ || ||| || ||| || ||| || ||| gem || molom Ll /~~~\/~~\/~~~\/~~~\/~~\/~~~\ /~~~\/~~\/~~~\/~~~\/~~\/~~~\ | /\/ /\/ /\ || /\/ /\/ /\ | | /\ \/\ \/\ || /\ \/\ \/\ | \ \/ /\/ /\/ /\ \/ /\/ /\/ / function name \ \/\ \/\ \/ /\ \/\ \/\ \/ / \ \/\ \/\ \/ \ \/\ \/\ \/ \/ /\/ /\/ / \/ /\/ /\/ / ,_/\ \/\ \/\ \__/\ \/\ \/\ \______________________/ /\/ /\/ /\__/ /\/ /\/ /\_, (__/\__/\__/\____/\__/\__/\________________________/\__/\__/\____/\__/\__/\__)

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• String Processing Algorithms..

  - by RBA

  Hi, Please share some good websites where I can learn more on String Processing Techniques and could grill myself more into different kinds of algorithm available in this field.. Thanks..

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• MFC : How to check if a character input is unicode?

  - by Owen

  Hi All, I have an input text field which accepts a certain maximum number of characters. This number of characters should change though if the character inputs are unicode. Question: Is there a way I could check if the character input is unicode or not?

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• Is there a way to easily serialize form input into xml or yaml for database storage?

  - by aaandre

  I am dealing with an old app in asp classic vbscript. I'd like to store the input of a form in a database text field as the form fields are a subject to frequent change and I don't feel like normalizing the old database. Any solutions for serialization in vbscript? Thank you!

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• JQuery username validation - Ajax call

  - by Denise

  Hi, I am currently using JQuery's validation plugin for basic form validation such as required fields. I want to add functionality so that when the user types in the username field, an ajax call is triggered to check whether the username is already taken. My requirements are: Preferably integrate with JQuery Validation plugin, rather than writing a custom function I want the lookup to occur on the nkeyup event I want the lookup to be triggered approx 0.5 seconds after the keyup event has occurred. Thanks!

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• How can I send a ByteArray (from Flash) and some form data to php?

  - by j-raff

  I have a sketch pad made in Flash AS3 like this one here: http://henryjones.us/articles/using-the-as3-jpeg-encoder I want to send the jpg to the server and some data from a html form field with php. Is there a way to force the Flash movie to deliver the image file when one presses the submit button?

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• How can I move the clear button in a UITextField?

  - by Jake

  For some reason, when I add a UITextfield as a subview of the contentview of a tablecell, the clearbutton does not align with the text typed in the field, and appears a bit underneath it. Is there any way I can move the text of the clearbutton to stop this from happening? Thanks for any help,

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• selecting row among duplicated ones in VBA

  - by Elaine Kuo

  ArcGIS 9.3 Arcobject I wanna select one row of each duplicated SIDs in a field below. (an attribute table of a shape file) The priority is R S = I 0 Therefore, among SID 87, FID1 will be selected. (SID 88, STATUS will be S+I) (SID 89, FID 6 will be chosen) Please kindly advise VBA cord to run the selection and thanks. FID SID STATUS 1 87 R 2 87 O 3 88 I 4 88 S 5 89 I 6 89 R 7 89 I 8 89 S

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• Cognos 8.3: Can I use parameters in conditional style expressions?

  - by Jacob

  Hi, I have Start Date and End date parameters that work fine as filters on a query, as follows: [EMR Reporting].[Appointments].[Appointment Date] between ?Start Date? and ?End Date? But when I attempt to apply conditional styles to a field based on ?Start Date?, the report blows up. Should I be able to use parameter values in conditional style expressions, or is this not supported for some reason? Thanks!

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• Displaying success/failure messages from hidden iframe submit

  - by Erik Nelson

  I'm using the hidden iframe method to submit a form with a file upload field. I want to display a message back on the page using javascript and I'm not sure how to do this. If this was just a form with text fields I'd do an AJAX post and respond with a message I'd display in my callback function. I'm just not sure how to accomplish this same task with the hidden iframe method since it is a standard form post.

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• Storing dynamic fields in Django forms

  - by hekevintran

  Django's form library has a feature of form sets that allow you to process dynamically added forms. For example you would use form sets if your application has a list of bookmarks you could use form sets to process multiple forms that each represent a bookmark. What about if you want to dynamically add a field to a form? An example would be a survey creation page where you can dynamically add an unlimited number of questions. How do you handle this in Django?

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• Given a property, how to find to which object the property belongs?

  - by Paul

  I've got a few DOM elements, say text-field input A, B, C, and all of them have the property of 'onclick'. How do I find to which object a particular 'onclick' belongs?

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