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  • how to implement ajax in Ruby on rails via jquery

    - by swaroopsm
    how do i pass few of my form field(s) values to a controller usnig ajax/jquery? For eg.: In php/jquery I do something like this: $("#test-btn".click(function(){ var name=$("#name").val(); var age=$("#age").val(); $.post("insert.php",{name: name,age: age}, function(data){ $("#respone").html(data).hide().fadeIn(500); }); }); //insert.php <?php //insert values to database! ?> how do i acheive a similar functionality in rails using ajax/jquery?

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  • Pending and Approval process

    - by zen
    So let's say I have a DB table with 8 columns, one is a unique auto-incrementing used as ID. So I have a page that pulls in the info for each row based on query string ID. I want to give my users the ability to propose changes. Kinda like a wiki setup. So I was thinking I should just have another duplicate table or maybe database altogether (without the auto-incrementing column and maybe with a date edited column) that keeps all proposed changes in queue and then when I approve them, the script can move the row from the proposed DB to the real DB. Does this sound good or is there a better process for this?

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  • MySQL - Join as zero if record Not IN

    - by Zurahn
    To explain by example, take two tables, A and B Table A id foo 1 x 2 y 3 z Table B id aid bar 1 3 50 2 1 100 An example join SELECT foo, bar FROM a, b WHERE a.id = b.aid; Garners a result of foo bar z 50 x 100 What I would like to do is get all values of foo and for any instances where there isn't a corresponding bar value, return 0 for that column. My best guess was something along the lines of SELECT foo, bar AS br FROM a, b WHERE a.id = b.aid OR a.id NOT IN (SELECT aid FROM b); But that returns duplicates and non-zero values for bar. Possible?

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  • Teaching java interfaces to absolute beginners: What is a good example? [closed]

    - by mrsteve
    Possible Duplicate: Explaining interfaces to beginning programmers? I searched on stackoverflow and here for a good example to teach java interfaces in a beginners class. I found the following post: http://stackoverflow.com/questions/416331/java-interfaces The Official Java-Tutorial and the references feature examples that are quite good but I would need a very simple example to start with for my class. I don't think the offical tutorial is the best resource for absolute beginners. The students are easily confused, and the most effective example would help. Any pointers or experience in teaching java interfaces?

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  • Will taking two years off for school in a related field destroy a mid level development career?

    - by rsteckly
    Hi, I know some people have asked about getting back into programming after a break and this is a potential duplicate. I just am in a position where I can go back to school for a graduate degree in Stat/Applied Math. But I'm very worried about the impact it will have on my career and ability to find a job afterwards. I have 3 years experience in .NET on top of a couple of years in PHP. Right now, I'm a senior software engineer. Do you think taking two years off to do math is going to dramatically hurt my marketability?

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  • Reflection & Parameters in C#

    - by Jim
    Hello, I'm writing an application that runs "things" to a schedule. Idea being that the database contains assembly, method information and also the parameter values. The timer will come along, reflect the method to be run, add the parameters and then execute the method. Everything is fine except for the parameters. So, lets say the method accepts an ENUM of CustomerType where CustomerType has two values of CustomerType.Master and CustomerType.Associate. EDIT I don't the type of parameter that will be getting passed in. ENUM used as an example END OF EDIT We want to run Method "X" and pass in parameter "CustomerType.Master". In the database, there will be a varchar entry of "CustomerType.Master". How do I convert the string "CustomerType.Master" into a type of CustomerType with a value of "Master" generically? Thanks in advance, Jim

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  • How do i set Savepoints for Linq to SQL and use "NO" ExecuteCommand ?

    - by nik
    TransactionScope TransactionABC = new TransactionScope(); try { context.Connection.Open(); { context.ExecuteCommand("insert into test (test) values (1)") context.SubmitChanges(); context.ExecuteCommand("savepoint test"); context.ExecuteCommand("insert into test (test) values (2)") context.SubmitChanges(); context.ExecuteCommand("rollback to test"); } TransactionABC.Complete(); TransactionABC.Dispose(); } catch (Exception ec) { MessageBox.Show(" ", ec.Message); } finally { context.Connection.Close(); } It works, but only with ExecuteCommand. I want to use a function, because i can't see what happens in the savepoint !

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  • Using an IN clause in Vb.net to save something to the database using SQL

    - by Rob
    I have a textbox and a button on a form. I wish to run a query (in Vb.Net) that will produce a query with the IN Values. Below is an example of my code myConnection = New SqlConnection("Data Source=sqldb\;Initial Catalog=Rec;Integrated Security=True") myConnection.Open() myCommand = New SqlCommand("UPDATE dbo.Recordings SET Status = 0 where RecID in ('" & txtRecID.Text & "') ", myConnection) ra = myCommand.ExecuteNonQuery() myConnection.Close() MsgBox("Done!", _ MsgBoxStyle.Information, "Done") When I enter a single value it works but when I enter values with commas it throws an error: "Conversion failed when converting the varchar value '1234,4567' to data type int." Could someone please help me to solve this or if there is an alternative way? Many Thanks

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  • From where can I install my nVidia drivers? [closed]

    - by Arthur Wulf White
    Possible Duplicate: How do I install extra drivers? Additional Drivers tool in Ubuntu 12.10? I have read here and here that I should be able to install drivers. So I'm finding the Additional Drivers menu. To install nVidia driver. I started looking for System -> Administration and not finding it. I have an icon that says System Settings and it has any option related to drivers. NOTE: I am using Ubuntu 12.10.

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  • Can someone explain why Chromium is difficult to build for Ubuntu?

    - by vasa1
    I hope this question is not regarded as a duplicate of Does someone know why the Chromium daily package isn't build anymore? because that question relates to daily builds and not to "stable" Chromium available from the Software Center. So what are the technical difficulties that the Chromium team is facing? A very similar question has been asked in Default Browser Follow-up. I would very much to have an updated Chromium stable on my system. Also, is the problem of building Chromium restricted to 32-bit versions? (I have a 64-bit CPU but just 4 GB RAM and so I'm staying with 32-bit all the way.) I'm asking this partly in the light of the discussions, here for example, about having Chromium as the default web browser in future releases.

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  • Can't install Ubuntu using Wubi on a Windows dynamic disk [closed]

    - by Tharindu
    Possible Duplicate: I can't able to install ubuntu alongside with Win7 ..: When I try to install ubuntu 12.04 - 64 bit alongside win 7 prof. 64 bit it generated the following error. How could I proceed without having this? I - An error occurred: Error executing command command= C:\Windows\sysnative\bcdedt.exe /set {1 bO4672f-5969-11)-a75c-d3d3Od877b8O} device partition= F: retval=1 stderr=An error has occurred setting the element data. The request is not supported. stdout For more information, please see the log file c\users\dell\appdata\local\temp\wubi-12.04

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  • EntityFramework: Access dabase-column using user defined Type

    - by Nils
    I "inherited" an old Database where dates are stored as Int32 values (times too, but dates shall suffice for this example) i.e. 20090101 for Jan. 1st 2009. I can not change the schema of this database because it is still accessed by the old programs. However I want to write a new program using EF as the O/R-M. Now I'd love to have DateTime-Values in my Model. Is there a way to write a custom type and use this as a Type in the EF-Model. Something like a Type "OldDate" with properties: DatabaseValue : Int23 Value : DateTime (specifying the date-part whereas the time-part is always 0:00:00) Is something like this possible with the EF-Model ?

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  • h1 title attribute [closed]

    - by codemonkey
    Possible Duplicate: Why don't TITLE tags get indexed in google? Hello there, I have a h1 element on my page which is working great. I have also been using the title attribute on this element which I don't think has been causing much harm at all. My h1 title is "The Great Ocean Road" and the title attribute on that is "Great Ocean Road" - so it's a variation of the h1 text. These are both keywords for the site so i'm hoping it's a good thing for seo. Is that a bad idea do you think? I'm not sure what Search Engines think about using a title attribute or even if they would 'mark me down' for doing it in such a way. Do you think if the h1 text is "The Great Ocean Road", the title attribute should be "The Great Ocean Road" aswell? Thank you in advance

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  • MySQL Simple query gives "Query was empty". Transaction help needed I think.

    - by user129609
    Hi, I'm trying to do a simple transaction in MySQL delimiter go start transaction; BEGIN DECLARE EXIT HANDLER FOR SQLEXCEPTION, SQLWARNING, NOT FOUND ROLLBACK; INSERT INTO jext_categories (Name) VALUES ('asdfas'); INSERT INTO jext_categories (Name) VALUES ('asdfas2'); END; commit; SELECT * FROM jext_categories; go delimiter ; but I keep getting an error saying query was empty. Could someone please tell me what I am doing wrong, and also, what is the proper format for doing a transaction in MySQL? Thanks!

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  • How to convert from integer to unsigned char in C, given integers larger than 256?

    - by Alf_InPogform
    As part of my CS course I've been given some functions to use. One of these functions takes a pointer to unsigned chars to write some data to a file (I have to use this function, so I can't just make my own purpose built function that works differently BTW). I need to write an array of integers whose values can be up to 4095 using this function (that only takes unsigned chars). However am I right in thinking that an unsigned char can only have a max value of 256 because it is 1 byte long? I therefore need to use 4 unsigned chars for every integer? But casting doesn't seem to work with larger values for the integer. Does anyone have any idea how best to convert an array of integers to unsigned chars?

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  • ASP.Net MVC - bulk / batch insert with through controller

    - by user610358
    guys, I need to make a view which will support bulk insert. In my mvc app, I am using repository patern with entity framework for. I am only having problem on how I will going to retrive the values of the model. There will be multiple model inpouts inside the view. I am sure that I am going to use foreach or for loop but how I am going to retrive the input values form view into controller. any help would be appreciated. thanks.

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  • Application versioning

    - by Mathew
    Haven't find similar issue so sorry if thats a duplicate. I'm about to start a migration of an already existing project from one web container version to the another. Currently, the application version is 2.2.5. Business requirement is to deliver a 3.0 version by the end of the year. Additional constraint is to release a working, stable version by the end of Q3. We are about to work in 2-weeks sprints and I'm wondering how can I approach the problem? I was thinking about releasing 2.3 by the end of Q2, then immediately promoting it as 3.0-a1, work on alphas (3.0-a2, 3.0-a3, ...) till the end of Q3, to start with 3.0-b1 in the early Q4 and finally release 3.0 around December. I don't feel comfortable saying that the application is already in 3.0 state in July, but I can't see other options. If you find some book chapters/blogs or your personal experience interesting please share your opinion.

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  • Run time insert using bulk update ,giving an internal error?

    - by Vineet
    Hi , I am trying to make a run time table named dynamic and inserting data into it from index by table using bulk update,but when i am trying to execute it this error is coming: ERROR at line 1: ORA-06550: line 0, column 0: PLS-00801: internal error [74301 ] declare type index_tbl_type IS table of number index by binary_integer; num_tbl index_tbl_type; TYPE ref_cur IS REF CURSOR; cur_emp ref_cur; begin execute immediate 'create table dynamic (v_num number)';--Creating a run time tabl FOR i in 1..10000 LOOP execute immediate 'insert into dynamic values('||i||')';--run time insert END LOOP; OPEN cur_emp FOR 'select * from dynamic';--opening ref cursor FETCH cur_emp bulk collect into num_tbl;--bulk inserting in index by table close cur_emp; FORALL i in num_tbl.FIRST..num_tbl.LAST --Bulk update execute immediate 'insert into dynamic values('||num_tbl(i)||')'; end;

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  • SEO For A Doman Name That Is A Dictionary Work Misspell [closed]

    - by Miles
    Possible Duplicate: How should I handle search engines auto-correcting the spelling of a site's name? My domain name is radiuus.com. Since the correct spelling of the word is with one u, when I search for "radiuus" on google it thinks I'm misspelling the word, kindly lets me know, and returns results for "radius". Example: https://www.google.com/search?q=radiuus&oq=radiuus&sugexp=chrome,mod=2&sourceid=chrome&ie=UTF-8 What can I do to prevent this? And taking this one step further: what can I do to get my site to show up when someone searches for "radius" spelled the correct way? Thanks!!

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  • Custom object based on database table

    - by Archangel
    Suppose that I have a database query which looks like below - select name, gender, birthday from person where person_id = 1; When this query is executed, some records from the database are returned. I want to make a custom object which will contain the exact attributes as the column names, with the corresponding values. As an example, suppose that the object is X. So it will have three attributes which are X.name, X.gender and X.birthday, with the corresponding values from the records. Is it doable in PHP? If so, then how?

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  • MVC? patterns for game development? [closed]

    - by davivid
    Possible Duplicate: MVC-like compartmentalization in games? I am thinking of the best way to structure my project and was thought a MVC style pattern would be appropriate. Would be correct having the model handle the majority and basically being the game engine? Are there any standardised patterns recommended for simple game development? Model / Game Engine Data: Level Design, Chat feeds, etc Game Status: Player status, Enemy status, World Status etc etc. Engine: Physics, Collisions, AI View 3D: Gameplay, Camera, Rendering... 2D: UI etc Controller: Player Input UI Input

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  • problems, custum wrap (class) around PDO, doesn't work

    - by Knarf
    DB::construct(); $STH = DB::prepare('INSERT INTO users (username, password, email, activationkey) VALUES (?, UNHEX(?), ?, ?)'); var_dump($STH); $result = $STH->execute(array('test', 'nils', '[email protected]', '227a038fe9c81515b514cb152188e95c')); echo "working? <br />"; if($result == false) echo 'noooo...'; It outputs and doesn't put anything in the database. Works with a similare code with DPO just without my DB class. But I doesn't get any errors. Anyone have an idea what the problem could be? object(PDOStatement)#2 (1) { ["queryString"]=> string(87) "INSERT INTO users (username, password, email, activationkey) VALUES (?, UNHEX(?), ?, ?)" } working? <br /> noooo...

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  • Select records by comparing subsets

    - by devnull
    Given two tables (the rows in each table are distinct): 1) x | y z 2) x | y z ------- --- ------- --- 1 | a a 1 | a a 1 | b b 1 | b b 2 | a 1 | c 2 | b 2 | a 2 | c 2 | b 2 | c Is there a way to select the values in the x column of the first table for which all the values in the y column (for that x) are found in the z column of the second table? In case 1), expected result is 1. If c is added to the second table then the expected result is 2. In case 2), expected result is no record since neither of the subsets in the first table matches the subset in the second table. If c is added to the second table then the expected result is 1, 2. I've tried using except and intersect to compare subsets of first table with the second table, which works fine, but it takes too long on the intersect part and I can't figure out why (the first table has about 10.000 records and the second has around 10). EDIT: I've updated the question to provide an extra scenario.

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  • Any way to set or overwrite the __line__ and __file__ metadata?

    - by charles.merriam
    I'm writing some code that needs to change function signatures. Right now, I'm using Simionato's FunctionMaker class, which uses the (hacky) inspect module, and does a compile. Unfortunately, this still loses the line and file metadata. Does anyone know: If it is possible to overwrite these values in some odd way? If hacking up a class with a complex getattribute() to intercept the values and also try to make the class looks like a function is any more possible than a moose with a flying nun hat? Is there an alternative to the (hacky) inspect module? PEP 362 is dead dead dead? I know decorators and cPickle users fight with this. What other situations is the read only metadata in people's way? I appreciate any insights. Thank you.

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  • what is a fast way to output h5py dataset to text?

    - by user362761
    I am using the h5py python package to read files in HDF5 format. (e.g. somefile.h5) I would like to write the contents of a dataset to a text file. For example, I would like to create a text file with the following contents: 1,20,31,75,142,324,78,12,3,90,8,21,1 I am able to access the dataset in python using this code: import h5py f = h5py.File('/Users/Me/Desktop/thefile.h5', 'r') group = f['/level1/level2/level3'] dset = group['dsetname'] My naive approach is too slow, because my dataset has over 20000 entries: # write all values to file for index in range(len(dset)): # do not add comma after last value if index == len(dset)-1: txtfile.write(repr(dset[index])) else: txtfile.write(repr(dset[index])+',') txtfile.close() return None Is there a faster way to write this to a file? Perhaps I could convert the dataset into a NumPy array or even a Python list, and then use some file-writing tool? (I could experiment with concatenating the values into a larger string before writing to file, but I'm hoping there's something entirely more elegant)

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