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  • why isn't my id showing up in django admin list?

    - by FurtiveFelon
    Hi all, I have a class Task(models.Model), and i didn't define id field explicitly (since it defines automatically for you). I checked in the database, it exists for the Task. Now i would like to display it in the list via list_display property in admin.ModelAdmin. I have a bunch of things in there, only id is not showing up for any of the rows i have. Everything else works fine. Anyone know anything special i have to do to get id to display? Thanks a lot! Jason

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  • How does NetBeans' Splash Screen feature work?

    - by Pam
    New to NetBeans and just noticed that in the File Project Properties Application dialog there is a text field labeled Splash Screen that allows you to specify a path to an image that you would like displayed when your program is launching. I want to customize the way my splash screen works (adding a progress bar, etc.) and would like to code it from the ground up but don't know where to start. What are the best practices for Java/Swing-based splash screens? Thanks for any and all input!

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  • Database design: How should I add an information which can apply to several tables

    - by Stefan
    I am constructing a database System using Mysql, this will be an application of about 20 tables. The system contains information on farmers, we work with organic certification and need to record a lot of info for that. In my system, there are related parent-child tables for farmers, producing years and fields/areas - it's a simple representation of the real world in which farmers farm crops on their fields. I now need to add several status flags for each one of these levels: a farmer can be certified, or his field can be, or the specific year can be; each of these flags has several states and can occur a number of times. The obvious solution to this would be to add a child table to every one of these tables, and define the states there. What I wonder if there is an easier way to do this to avoid getting to many tables? Where/how would be best practise to keep that data?

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  • SELECT(IF(IN query.

    - by Harold
    There are 3 tables. Products, Options and Prod_Opts_relations. The latter holds product_id and option_id so i should be able to figure out which options are selected for any given product. Now i want to retrieve all options from the options table where the value of an extra alias field should hold checked or unchecked depending on the existance of a mathing record in the relations table for a give product id. Thus far i came up with this: SELECT IF(IN(SELECT id_option FROM prod_opt_relations WHERE id_product='18'),'y','n') AS booh ,optionstable.id AS parent_id ,optionstable.name_en AS parent_english ,optionstable.name_es AS parent_spanish FROM product_options AS optionstable WHERE 1 resulting in syntax errors. Alas i just cannot figure out where things go wrong here

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  • Find strong name signature without calling LoadAssembly

    - by Todd Kobus
    When reading a Windows PE file directly, I can't seem to find the strong name of a delay signed assembly. I can get to the CLR Header and read all the CLR header entries including the flags and the StrongNameSignature field. Unfortunately in a delay signed assembly the StrongNameSignature is zeroed out. Is the information in the MetaData directory specified within the CLR header? If so does anyone have an example of how to read this table? I am not interested in calling SN.exe or loading the assembly.

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  • What is the fastest way to scrape HTML webpage in Android?

    - by kunjaan
    I need to extract information from an unstructured web page in Android. The information I want is embedded in a table that doesn't have an id. <table> <tr><td>Description</td><td></td><td>I want this field next to the description cell</td></tr> </table> Should I use Pattern Matching? Use BufferedReader to extract the information? Or are there faster way to get that information?

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  • Zooming to UIView and it's sub-views

    - by leon
    Hi, I have a UIView which I can zoom to (as it is set as a subview of UIScrollView). UIView has UILabel, UITextField, etc. If I just zoom to the UIView, then of course label and text field get fuzzy (the same effect if you are zooming to the image file without changing image resolution). To solve the problem I need to increase the font size and sizes of the UILable and UITextField in according to the scale used to zoom in (scale is passed as a param by the UIScrollView). This is where I am getting confused. Changing frame (by increasing it width and height by zooming scale) I get all my elements (sub-views) repositions (because changing frame effects center and bounds) Question: 1. What would I need to do to zoom in to the sub-views and just increase the sub-view sizes while keeping them in the exactly the same position? thanks

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  • How to change a primary key in SQL to auto_increment?

    - by Jian Lin
    I have a table in MySQL that has a primary key: mysql> desc gifts; +---------------+-------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +---------------+-------------+------+-----+---------+-------+ | giftID | int(11) | NO | PRI | NULL | | | name | varchar(80) | YES | | NULL | | | filename | varchar(80) | YES | | NULL | | | effectiveTime | datetime | YES | | NULL | | +---------------+-------------+------+-----+---------+-------+ but I wanted to make it auto_increment. The following statement failed. How can it be modified so that it can work? thanks mysql> alter table gifts modify giftID int primary key auto_increment; ERROR 1068 (42000): Multiple primary key defined

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  • Improving my career in web development

    - by Dilse Naaz
    Hi I am a new guy in web development using .net technology. I have strong ambition to make up a good career in this field. But when i starting to learn something from the internet tutorials, i can't complete that. I will stop the reading before completion. so i decided everyday to start a new life in development. But i cant to do that. please help me for improving my career by suggesting some tips for increasing the concentration or something like that. thanks in advance.

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  • How do you set a double value to a "non-value"

    - by Ankur
    I have two double data elements in an object. Sometimes they are set with a proper value and sometimes not. When the form field from which they values are received is not filled I want to set them to some value that tells me, during the rest of the code that the form fields were left empty. I can't set the values to null as that gives an error, is there some way I can make them 'Undefined'. PS. Not only am I not sure that this is possible, it might not also make sense. But if there is some best practice for such a situation I would be keen to hear it.

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  • VirtualBox Port Forward not working when Guest IP *IS* specified (while doc says opposite)

    - by Patrick
    Trying to port forward from host (Mac OS X) 127.0.0.1:8282 - guest (CentOS)'s 10.10.10.10:8080. Existing port forwards include 127.0.0.1:8181 and 9191 to guest without any IP specified (so whatever it gets through DHCP, as explained in the documentation). Here is how the non-working binding was added: VBoxManage modifyvm "VM name" --natpf1 "rule3,tcp,127.0.0.1,8282,10.10.10.10,8080" Here is how the working ones were added: VBoxManage modifyvm "VM name" --natpf1 "rule1,tcp,127.0.0.1,8181,,80" VBoxManage modifyvm "VM name" --natpf1 "rule2,tcp,127.0.0.1,9191,,9090" And by "non-working", I of course mean not listening (as a prerequisite to forwarding): $ lsof -Pi -n|grep Virtual|grep LISTEN VirtualBo 27050 user 21u IPv4 0x2bbdc68fd363175d 0t0 TCP 127.0.0.1:9191 (LISTEN) VirtualBo 27050 user 22u IPv4 0x2bbdc68fd0e0af75 0t0 TCP 127.0.0.1:8181 (LISTEN) There should be a similar line above but with 127.0.0.1:8282. Just to be clear, this port is listening perfectly fine on the guest itself. And when I remove the guest IP (i.e., clear the 10.10.10.10) the forward works fine, albeit to eth0 (not eth1 where I need it). I can tcpdump and watch the traffic flow back and forth. And yes, I've disabled iptables entirely while testing -- it's not getting blocked anywhere on the guest. As VirtualBox writes in their documentation, you are required to specify the guest IP if it's static (makes sense, no DHCP record it keeps): "If for some reason the guest uses a static assigned IP address not leased from the built-in DHCP server, it is required to specify the guest IP when registering the forwarding rule:". However, doing so (as I need to), seems to break the port forward with nary a report in any log file I can find. (I've reviewed everything in ~/Library/VirtualBox/). Other notes: While I used the above command to add the third rule, I've also verified it showed up correctly in GUI and then removed/re-added from there just to make sure). This forum link -- while very dated -- looks somewhat related in that a port forward to a static IP was not appearing (perhaps they think due to lack of gratuitous arp being sent for host to know IP is there/avail?). Anyway, what gives? Is this still buggy? Any suggestions? If not, easy enough workarounds? What's interesting is that this works perfectly fine on another user's Mac, however he's running a slightly older version (4.3.6 v. 4.3.12).

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  • How can i insert large files in mysql db using php?

    - by anjan
    Hi! I want to upload a large file of size 10M max to my mysql database. Using .htaccess i changed the PHP's own file upload limit to "10485760" = 10M, i am able to upload files upto 10M size without any problem. But i can not insert the file in database if it is more that 1M in size. i am using file_get_contents to read all file data and pass it to the insert query as a string to be inserted into a LONGBLOB field. But files with more than 1M size is not being added to database, though i can use print_r($_FILES) to examine that the file uploaded correctly. Any help will be appreciated and i will need it within next 6 hours. So, please help! best regards, Anjan

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  • How to get my first programming job.

    - by itsbunnies
    What is the best way to go about getting your very first programming job? I am currently going to college but have a few years before I graduate. I want to get out of my current "factory" job and into a computer related field as soon as possible. I found quite a few positions that I qualify for, but believe my pathetic resume has hurt me. My resume has a "skills" section where I list everything I am familiar with, but my employment section contains my first job (Super Wash, best car wash around!) and my current job (Assembling stuff that makes up various fans and motors). How do I get a company to give me a chance?

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  • Show file extensions in document libraries in Sharepoint 2010

    - by sebastian
    I've got a Sharepoint site collection with several sub sites each having their own document library. Now I want to add the file extensions to the document names in all those libraries. How should I do this? I've seen tips telling you to modify the onet.xml-file, but they never look like mine do, and furthermore I don't know for sure what happens to that onet.xml-file - does it change the existing libraries? Other tips tell me to use Sharepoint designer, that would mean I'll have to do it for every view in every library, wouldn't it? So I'd prefer doing it from code, where I feel more comfortable and where I can automate the process. So, all I want is to replace the "Name (linked to document with edit menu)" with the "Name (for use in forms)" but still keep the link and the edit menu. I've found I need to use the FileLeafRef-field, but I don't know how! Thankful for any new clues, Sebastian

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  • Displaying Fields (and/instead of Properties) in a PropertyGrid

    - by Jenk
    I'd like to use a PropertyGrid to manipulate the data on some objects, however these objects don't have properties, they have fields. Thus a property grid doesn't display them (high five MS!) Before anyone posts "just use properties": I can't at the moment.. these objects are DTOs and are used to send data to a VB6 Interop dll, thus all the parameters for the method calls are "ref" parameters (high five MS!), and C# won't compile if you use a property instead of a field or variable (high five MS!). No, I am not going to create local variables for every property on any given object. There many, many fields, and many, many test cases that would need updating, as well as the production code it self, and this post/question may be the path of least resistance. :)

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  • Filter records based on Date Range + ASP.NET + Regex + Javascript

    - by ASIF
    Hi I need to filter data based on a date range. My table has a field Process date. I need to filter the records and display those in the range FromDate to ToDate. How do I write a function in VB.NET which can help me filter the data. Protected Shared Function ObjectInRange(ByRef obj As Object, ByVal str1 As String, ByVal str2 As String) As Boolean Dim inRange = False For Each prop As PropertyInfo In obj.GetType().GetProperties() Dim propVal = prop.GetValue(obj, Nothing) If propVal Is Nothing Then Continue For End If Dim propValString = Convert.ToString(propVal) If Regex....WHAT GOES HERE? Then inRange = True Exit For End If Next Return inRange End Function Am I on the right track??

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  • Indexing datetime in MySQL

    - by User1
    What is the best way to index a datetime in MySQL? Which method is faster: Store the datetime as a double (via unix timestamp) Store the datetime as a datetime The application generating the timestamp data can output either format. Unfortunately, datetime will be a key for this particular data structure so speed will matter. Also, is it possible to make an index on an expression? For example, index on UNIX_TIMESTAMP(mydate) where mydate is a field in a table and UNIX_TIMESTAMP is a mysql function. I know that Postgres can do it. I'm thinking there must be a way in mysql as well.

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  • mysql join default value

    - by andy
    I've been trying to use the IsNull() function to ensure that there is a value for a field. $result = mysql_query(" SELECT crawled.id,IsNull(sranking.score,0) as Score,crawled.url,crawled.title,crawled.blurb FROM crawled LEFT JOIN sranking ON crawled.id = sranking.sid WHERE crawled.body LIKE '%".$term."%' ORDER BY Score DESC LIMIT " . $start . "," . $c . " ") or die(mysql_error()); But I get the error message:Incorrect parameter count in the call to native function 'IsNull' Anybody have any ideas? I'm pretty new to mySQL.

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  • Parent-Child relation while using object data source

    - by Saba
    Hello guys I am experiencing with a class generator I've written, which generates a class for each table in database with each table field as a property and such. Before that, I used to add a typed dataset to the project and add some tables to it. It automatically detected the relationship between tables and when I added a parent table as data source of a datagrid, I could add another datagrid and use the foreing key data member of it's bindingsource to fill it, and when someone moved the focus on parent datagrid, the data in child datagrid would change accordingly. Now that I have my classes, I add an object as data source for my 2 datagrids, but obviously it doesn't detect a parent child relation. But It'd really help if I could have that foreign key relation in my object datasources. Is there any way to have that relation in object datasource?

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  • Data Binding Error retrival

    - by saurabh
    Hello My scenarion is this 1- i have a Form which is dynamically generated with some XML configuration information. 2- i am attaching Data Binding for a textbox in Text_Loaded event a well as Validation Rules and i am attaching Validation.AddErrorHandler for showing message boxs 3- Data Source for the binding is a DataTable. 4- I am having record navigation buttons on the form generated in step 1 (Next,Last,First,Previous) 5- If user edits data with invalid values in record no 1 validation fires and it creats a red border 6-user press Next button to navigate to record no 2 but does not update error field in record no 1 i.e. she leaves record no 1 with some error not in my data source but on the form. 7- She came back to record no 1 , here my problem begins , Record no 1 is updated with old values and does not show error which she made. i know that ValidationRules will not allow wrong input to update my data source which is fine but i need to handle point no 7 , there is no direct way to handle this situation , any help is much appriciated

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  • last_login_at not working (null) w/ Authlogic Magic Columns...

    - by bgadoci
    I am using the Authlogicgem for authentication and most of it seems to be working great. Authlogic provides several columns that you can add to your Users table (for example) that it knows to fill in if they are present. i.e. login_count, current_login_ip, last_request_at and last_login_at. All seem to be working fine with the exception of the last_login_at field which is null for each user. Is there anything specific that could be causing this perhaps having to do with the user sessions, etc? I can post code if needed but wasn't sure what would relate to this.

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  • Watir question regarding selecting a hidden dropdown.

    - by AJ
    Hi, I have two dropdowns, the second dropdown does not show until a choice is made from the first one. Using watir, i can select the first dropdown, and when i watch it, the second one becomes active, but it cannot select it. i just tried the regular select_list using name and id. Here is the code for the second drop down. <td> <input type="hidden" value="1" name="list" id="list"> <script type="text/JavaScript" language="JavaScript"></script> <select> <option value="">1</option> <option value="2">2</option> <option value="3">3</option> </select> </td> I've also notice the value for the hidden field change as i select different options. Thanks for any help

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  • Converting a date string which is before 1970 into a timestamp in MySQL.

    - by Jamie
    Not a very good title, so my apologies. For some reason, (i wasn't the person who did it, i digress) we have a table structure where the field type for a date is varchar. (odd). We have some dates, such as: 1932-04-01 00:00:00 and 1929-07-04 00:00:00 I need to do a query which will convert these date strings into a unix time stamp, however, in my sql if you convert a date which is before 1970 it will return 0. Any ideas? Thanks so much! EDIT: Wrong date format. ooops.

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  • How can I possibly sort this in JavaScript?

    - by orokusaki
    I've been pounding my head on the wall trying to figure out how to sort this in JavaScript (I have to work with it in this format unfortunately). I need to sort it based on Small, Medium, Large, XL, XXL (Small ranking the highest) in each variationValues size field. The problem is that I need to sort the variationCosts and variationInventories at the same time to match the new order (since each value in order corresponds to the values in the other fields :( Input I have to work with var m = { variationNames: ["Length", "Size" ], variationValues: [ ["26.5\"", "XXL"], ["25\"", "Large"], ["25\"", "Medium"], ["25\"", "Small"], ["25\"", "XL"], ["25\"", "XXL"], ["26.5\"", "Large"], ["26.5\"", "Small"], ["26.5\"", "XL"] ], variationCosts: [ 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00 ], variationInventories: [ 10, 60, 51, 10, 15, 10, 60, 10, 15 ], parentCost: 20.00 }; Desired output var m = { variationNames: ["Length", "Size" ], variationValues: [ ["25\"", "Small"], ["26.5\"", "Small"], ["25\"", "Medium"], ["25\"", "Large"], ["26.5\"", "Large"], ["25\"", "XL"], ["26.5\"", "XL"] ["25\"", "XXL"], ["26.5\"", "XXL"], ], variationCosts: [ 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00 ], variationInventories: [ 10, 10, 51, 60, 15, 15, 15, 10, 10 ], parentCost: 20.00 };

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  • Maximum number of bytes that can be sent on a TCP connection

    - by iamrohitbanga
    I initially assumed that since tcp has a sequence number field of 32 bits and each byte sent on a tcp connection is labeled with a unique number, maximum number of bytes that can be sent on a tcp connection is about 2^32-1 or 2^32-2 (which?). but now I feel that since TCP is a sliding window protocol, the wraparound of sequence numbers during the connection should not have an affect on the maximum number of bytes that can be sent over a tcp connection as long as the when wraparound occurs the old packet is no longer in the network (it is sent after 2*MSL). What is the correct answer?

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