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  • pass value to servlet from a hidden input type

    - by kawtousse
    I am trying to pass the parameter called value in the hidden input type to my servlet. It is like that: retour.append("<input type=\"hidden\" id=\"id_" + nomTab + "_" + compteur + "\" value=\"" + object.getIdDailyTimeSheet() + "\"/>"); retour.append("<button id=edit name=edit type=submit onClick= editarow()>"); retour.append("<img src=edit.gif />"); retour.append("</button>"); retour.append("</td>"); But the method get parameter recommend a name to be able to get the value here. So how can I deal with it? Here I want to pass to the servlet the value of object.getIdDailyTimeSheet().

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  • securing a webservice for use from a custom iphone app only

    - by mme
    I want to create an iphone application which consists of two parts: The app itself and a server side component. On a users request, the app sends data to the server which is to be handled by human operators. To prevent abuse from an iphone app user, the id of the iphone is sent along with the request, and the operators can blacklist pranksters to deny their iphone access to the service. So far so good. Now the problem is: Someone could easily discover the address of the serverside component, and write a script to send bogus requests, using multiple IP addresses etc. So my question is: how can I defend myself against this? Captchas to protect against scripted attacks or requiring the user to register himself are not an option for this particular application. If I had control of the download, I would associate a unique ID with each downloaded app, but obviously this is not an option with the appstore. What would be your approach to make the server side part more secure?

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  • Django & custom auth backend (web service) + no database. How to save stuff in session?

    - by Infinity
    I've been searching here and there, and based on this answer I've put together what you see below. It works, but I need to put some stuff in the user's session, right there inside authenticate. How would I store acme_token in the user's session, so that it will get cleared if they logged out? class AcmeUserBackend(object): # Create a User object if not already in the database? create_unknown_user = False def get_user(self, username): return AcmeUser(id=username) def authenticate(self, username=None, password=None): """ Check the username/password and return an AcmeUser. """ acme_token = ask_another_site_about_creds(username, password) if acme_token: return AcmeUser(id=username) return None ################## from django.contrib.auth.models import User class AcmeUser(User): objects = None # we cannot really use this w/o local DB def save(self): """saving to DB disabled""" pass def get_group_permissions(self): """If you don't make your own permissions module, the default also will use the DB. Throw it away""" return [] # likewise with the other permission defs def get_and_delete_messages(self): """Messages are stored in the DB. Darn!""" return []

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  • Firefox is occasionally breaking the back button.

    - by Webjedi
    Having a really frustrating time with Firefox and the back button...given this simple ASP form: <head> <title>Form 1</title> </head> <body> <form action="form2.asp" method="post"> Enter some text:<input type="text" name="thetext" id="thetext"> <input type="submit" id="submit" name="submit"> </form> </body> </html> Firefox (3.6.3) will occasionally clear the value of the text box after hitting submit and then the back button. It's unpredictable when it will strike. And it will work for dozens to hundreds of times, and then all of a sudden it stops working. Any ideas where I should start?

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  • Grails - showing page processing/render debug information in development mode

    - by ovokinder
    I've been experimenting with Grails for the past two days and, so far, I'm really happy with it. Coming from Rails, the only thing I've really been missing here is the dev-mode debug information shown after the page has been served. This is what I mean: Processing UsersController#show (for 127.0.0.1 at 2010-06-14 10:28:44) [GET] Parameters: {"id"=>"2"} User Load (0.0ms) SELECT * FROM "users" WHERE ("users"."id" = 2) Rendering template within layouts/users Rendering users/show Completed in 24ms (View: 5, DB: 0) | 200 OK [http://localhost/users/2] Is there any way to get something similar in Grails? I've tried the "debug" plugin but its not very useful as it only shows the total processing time. I know it's not hard too roll something of my own (except for that database stats part), I just wanted to make sure I wasn't unnecessarily reinventing the wheel.

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  • Can we change <input type="file"> style?

    - by learner.php
    I tried to change the HTML form, input type file. Here is my code: HTML, form id = form <input class="upload_file" type="file" id="file" name="file" /> .CSS I tried both: .upload_button{ background: url('../images/upload_btn_bg.png') no-repeat; width: 200px; height: 40px; } #form input[type=file]{ background: url('../images/upload_btn_bg.png') no-repeat; width: 200px; height: 40px; } None of both of those methods works. I did see from some website, like facebook, youtube, google or twitter, they have different style. Wonder how they do it.

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  • User HasOne ActiveToken, HasMany Tokens, how to setup in Rails?

    - by viatropos
    I have two simple models: class User < ActiveRecord::Base has_many :tokens # has_one doesn't work, because Token already stores # foreign id to user... # has_one :active_token, :class_name => "Token" # belongs_to doesn't work because Token belongs to # User already, and they both can't belong to each other # belongs_to :active_token, :class_name => "Token" end class Token < ActiveRecord::Base belongs_to :user end I want to say "User has_one :active_token, :class_name => 'Token'", but I can't because Token already belongs_to User. What I did instead was just manually add similar functionality to the user like so: class User < ActiveRecord::Base has_many :tokens attr_accessor :active_token after_create :save_active_token before_destroy :destroy_active_token # it belongs_to, but you can't have both belongs_to each other... def active_token return nil unless self.active_token_id @active_token ||= Token.find(self.active_token_id) end def active_token=(value) self.active_token_id = value.id @active_token = value end def save_active_token self.active_token.user = self self.active_token.save end def destroy_active_token self.active_token.destroy if self.active_token end end Is there a better way?

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  • How do I guarantee row uniqueness in MySQL without the use of a UNIQUE constraint?

    - by MalcomTucker
    Hi I have some fairly simple requirements but I'm not sure how I implement them: I have multiple concurrent threads running the same query The query supplies a 'string' value - if it exists in the table, the query should return the id of the matching row, if not the query should insert the 'string' value and return the last inserted id The 'string' column is (and must be) a text column (it's bigger than varchar 255) so I cannot set it as unique - uniqueness must be enforced through the access mechanism The query needs to be in stored procedure format (which doesnt support table locks in MySQL) How can I guarantee that 'string' is unique? How can I prevent other threads writing to the table after another thread has read it and found no matching 'string' item? Thanks for any advice..

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  • Rails 2.3.5: flash[:notice] disappears after redirect_to call

    - by xyzman
    Here I've got two controller methods: def invite if request.post? begin email = AccountMailer.create_invite(@user,url) AccountMailer.deliver(email) flash[:notice] = "Invitation email sent to #{@user.email}" rescue #mail delivery failed flash[:error] = "Failed to deliver invitation" end redirect_to :action => :show, :id => @user.id end end and def show @title = "User #{@user.full_name}" end The problem is, when I send an invitation, and get redirected to ./show, I see no messages at all. If I change redirect_to to render, the message appears. Still, isn't it intended for flash to work in the immediate subsequent requests? BTW, I'm using Rails+Passenger setup, could it be so that redirected request goes to another application instance?

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  • Python lxml - returns null list

    - by Chris Finlayson
    I cannot figure out what is wrong with the XPATH when trying to extract a value from a webpage table. The method seems correct as I can extract the page title and other attributes, but I cannot extract the third value, it always returns an empty list? from lxml import html import requests test_url = 'SC312226' page = ('https://www.opencompany.co.uk/company/'+test_url) print 'Now searching URL: '+page data = requests.get(page) tree = html.fromstring(data.text) print tree.xpath('//title/text()') # Get page title print tree.xpath('//a/@href') # Get href attribute of all links print tree.xpath('//*[@id="financial"]/table/tbody/tr/td[1]/table/tbody/tr[2]/td[1]/div[2]/text()') Unless i'm missing something, it would appear the XPATH is correct: Chrome screenshot I checked Chrome console, appears ok! So i'm at a loss $x ('//*[@id="financial"]/table/tbody/tr/td[1]/table/tbody/tr[2]/td[1]/div[2]/text()') [ "£432,272" ]

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  • jquery .get/.post not working on ie 7 or 8, works fine in ff

    - by Samutz
    I have basically this on a page: <script type="text/javascript"> function refresh_context() { $("#ajax-context").html("Searching..."); $.get("/ajax/ldap_search.php", {cn: $("#username").val()}, function(xml) { $("#ajax-context").html($("display", xml).text()); $("#context").val($("context", xml).text()); }, 'xml'); } $(document).ready(function() { $("#username").blur(refresh_context); }); </script> <input type="text" name="username" id="username" maxlength="255" value="" /> <input type="hidden" name="context" id="context" value=""/> <div id="ajax-context"></div> What it should do (and does fine on Firefox) is when you type a username in to the #username field, it will run /ajax/ldap_search.php?cn=$username, which searches our company's ldap for the username and returns it's raw context and a formatted version of the context like this: <result> <display>Staff -&gt; Accounting -&gt; John Smith</display> <context>cn=jsmith,ou=Accounting,ou=Staff,ou=Users,o=MyOrg</context> </result> The formatted version (display) goes to the div #ajax-context and goes to the hidden input #context. (Also, the - are actually - "& g t ;" (without spaces)). However, on IE the div stays stuck on "Searching..." and the hidden input value stays blank. I've tried both .get and .post and neither work. I'm sure it's failing on the .get because if I try this, I don't even get the alert: $.get("/ajax/ldap_search.php", {cn: $("#username").val()}, function() { alert("Check"); }); Also, IE doesn't give me any script errors. Edit: Added "$(document).ready(function() {", the .blur was already in it in my code, but I forgot to include that in my post. Edit 2: The request is being sent and apache2 is receiving it: 10.135.128.96 - - [01/May/2009:10:04:27 -0500] "GET /ajax/ldap_search.php?cn=i_typed_this_in_IE HTTP/1.1" 200 69

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  • Using FieldSelector when searching with Lucene

    - by Christian
    I'm searching articles in PubMed via Lucene. Each of the 20,000,000 articles has an abstract with ~250 words and an ID. At the moment I store my searches, with each take multiple seconds, in a TopDocs object. Searchs can find thousands of articles. I'm just interested in the ID of the article. Does Lucene load the abstracts internally into the TopDocs? If so can I prevent that behavior through FieldSelectors or do FieldSelectors only work with IndexReader and don't work with IndexSearcher?

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  • select row from table and substitute a field with one from another column if not null

    - by EarthMind
    I'm trying construct a PostgreSQL query that does the following but so far my efforts have been in vain. Problem: There are two tables: A and B. I'd like to select all columns from table A (having columns: id, name, description) and substitute the "A.name" column with the value of the column "B.title" from table B (having columns: id, table_A_id title, langcode) where B.table_A_id is 5 and B.langcode is "nl" (if there are any rows). I've tried using a CASE and COALESCE() but failed due to my inexperience with both concepts. Thanks in advance.

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  • Guilty of unsound programming

    - by TelJanini
    I was reading Robert Rossney's entry on "What's the most unsound program you've had to maintain?" found at: (What's the most unsound program you've had to maintain?) when I realized that I had inadvertently developed a near-identical application! The app consists of an HTTPListener object that grabs incoming POST requests. Based on the information in the header, I pass the body of the request to SQL Server to perform the appropriate transaction. The requests look like: <InvoiceCreate Control="389> <Invoice> <CustomerNumber>5555</CustomerNumber> <Total>300.00</Total> <RushOrder>1</RushOrder> </Invoice> </InvoiceCreate> Once it's received by the HTTPListener object, I perform the required INSERT to the Invoice table using SQL Server's built-in XML handling functionality via a stored procedure: INSERT INTO Invoice (InvoiceNumber, CustomerNumber, Total, RushOrder) SELECT @NEW_INVOICE_NUMBER, @XML.value('(InvoiceCreate/Invoice/CustomerNumber)[1]', 'varchar(10)'), @XML.value('(InvoiceCreate/Invoice/Total)[1]', 'varchar(10)'), @XML.value('(InvoiceCreate/Invoice/Total)[1]', 'varchar(10)') I then use another SELECT statement in the same stored procedure to return the value of the new Invoice Number that was inserted into the Invoices table: SELECT @NEW_INVOICE_NUMBER FOR XML PATH 'InvoiceCreateAck' I then read the generated XML using a SQL data reader object in C# and use it as the response of the HTTPListener object. My issue is, I'm noticing that Robert is indeed correct. All of my application logic exists inside the stored procedure, so I find myself having to do a lot of error-checking (i.e. validating the customer number and invoicenumber values) inside the stored procedure. I'm still a midlevel developer, and as such, am looking to improve. Given the original post, and my current architecture, what could I have done differently to improve the application? Are there any patterns or best practices that I could refer to? What approach would you have taken? I'm open to any and all criticism, as I'd like to do my part to reduce the amount of "unsound programming" in the world.

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  • Persistance Queue Implementation

    - by Winter
    I was reading an article on Batch Processing in java over at JDJ http://java.sys-con.com/node/415321 . The article mentioned using a persistence queue as a Batch Updater instead of immediately sending an individual insert or update to the database. The author doesn't give a concrete example of this concept so I googled Persistence Queue but that didn't come up with much. Does anyone know of a good example of this?

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  • No Change for Index of DropDownList in a Custom Control!!!

    - by mahdiahmadirad
    Hi Dears, I have Created A Custom Control which is a DropDownList with specified Items. I designed AutoPostback and SelectedCategoryId as Properties and SelectedIndexChanged as Event for My Custom Control. Here Is My ASCX file Behind Code: private int _selectedCategoryId; private bool _autoPostback = false; public event EventHandler SelectedIndexChanged; public void BindData() { //Some Code... } protected void Page_Load(object sender, EventArgs e) { BindData(); DropDownList1.AutoPostBack = this._autoPostback; } public int SelectedCategoryId { get { return int.Parse(this.DropDownList1.SelectedItem.Value); } set { this._selectedCategoryId = value; } } public string AutoPostback { get { return this.DropDownList1.AutoPostBack.ToString(); } set { this._autoPostback = Convert.ToBoolean(value); } } protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) { if (SelectedIndexChanged != null) SelectedIndexChanged(this, EventArgs.Empty); } I Want Used Update Panel to Update Textbox Fields According to dorp down list selected index. this is my code in ASPX page: <asp:Panel ID="PanelCategory" runat="server"> <p> Select Product Category:&nbsp; <myCtrl:CategoryDDL ID="CategoryDDL1" AutoPostback="true" OnSelectedIndexChanged="CategoryIndexChanged" SelectedCategoryId="0" runat="server" /> </p> <hr /> </asp:Panel> <asp:UpdatePanel ID="UpdatePanelEdit" runat="server"> <ContentTemplate> <%--Some TextBoxes and Other Controls--%> </ContentTemplate> <Triggers> <asp:PostBackTrigger ControlID="CategoryDDL1" /> </Triggers> </asp:UpdatePanel> But Always The Selected Index of CategoryDDL1 is 0(Like default). this means Only Zero Value will pass to the event to update textboxes Data. what is the wrong with my code? why the selected Index not Changing? Help?

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  • Questions About SQl BulkCopy

    - by chobo2
    Hi I am wondering how can do a mass insert and bulk copy at the same time? I have 2 tables that should be affect by the bulk copy as they both depend on each other. So I want it that if while inserting table 1 a record dies it gets rolled back and table 2 never gets updated. Also if table 1 inserts good and table 2 an update fails table 1 gets rolled back. Can this be done with bulk copy?

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  • Connecting FLEX 3.0, JAVA WITH MYSQL

    - by Nithi
    How to connect to MYSQL DB from Java, create table, insert data, retrieve it with datatypes. How to make use of the data to/from in Flex application. plz help me out.. i have basic knowledge in sending and receiving messages using BlazeDS. and calling JAVA METHODS USING ...

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  • Polymorphic associations in Rails

    - by Newy
    Say I have two models, Apples and Oranges, and they are both associated with a description in a Text model. Text is a separate class as I'd like to keep track of the different revisions. Is the following correct? Is there a better way to do this? [Apple] has_one :text, :as => :targit, :order => 'id DESC' has_many :revisions, :class_name => 'Text', :as => :targit, :order => 'id', :dependent => :destroy [Text] belongs_to :targit, :polymorphic => true

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  • How do I declare a C# Web User Control but stop it from initializing?

    - by Scott Stafford
    I have a C#/ASP.NET .aspx page that declares two controls that each represents the content of one tab. I want a query string argument (e.g., ?tab=1) to determine which of the two controls is activated. My problem is, they both go through the initialization events and populate their child controls, wasting CPU resources and slowing the response time. Is it possible to deactivate them somehow so they don't go through any initialization? My .aspx page looks like this: <% if (TabId == 0) { %> <my:usercontroltabone id="ctrl1" runat="server" /> <% } else if (TabId == 1) { %> <my:usercontroltabtwo id="ctrl2" runat="server" /> <% } %> And that part works fine. I assumed the that <%'s would have meant the control wouldn't actually be declared and so wouldn't initialize, but that isn't so...

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  • Facebook action and object submission

    - by tijanja
    Am new to Facebook sdk and i want to use it in my project (blackberry app) has the developer i tried writing to my timeline with the code blow through a web service and i was able to write to my timeline, my question is this must i create an action and object that must be submitted for approval before other users can use my app to write to their timeline? because permission are not granted when users try to write to their timeline. $ret_obj = $facebook->api('/me/feed', 'POST',array('link' => 'www.****.com','message' => $user_profile["name"].' just downloaded W1')); echo '<pre>Post ID: ' . $ret_obj['id'] . '</pre>';

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  • Master page managing ContentPlaceHolder

    - by lidermin
    Hi, this is my issue: I have a master page in C#, where I have this code: <div style="width: 30%;height: 500px;float:left"> <asp:ContentPlaceHolder ID="cphMenu" runat="server"> </asp:ContentPlaceHolder> </div> <div style="width: 65%;height: 500px; float:right"> <asp:ContentPlaceHolder ID="cphMain" runat="server"> </asp:ContentPlaceHolder> </div> As you can see, I have two ContentPlaceHolders, the first one is the left menu (cphMenu), and the second one is the page itself. So, I want to click an item from the menu (the menu is a treeview) and load that specific page on the second contentplaceholder (cphMain). How can I get that behaviour?? Thanks in advance.

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  • How can i create a ModalPopupExtender control dynamically from a server control?

    - by Colour Blend
    I have a composite server control that does quiet a number of things; one of which is to display a ModalPopup OnClick of a dynamically generated HtmlAnchor control. I need to create this ModalPopupExtender control dynamically in my server control and trigger it from within. I have been able to create it and trigger it from a button created at design time but not at runtime. This is as a result of the ID assign to the link is always not found by the ModalPopupExtender control. I have tried assigning a static ID but no success. Can anyone help?

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  • 2 Minute question - HTML / CSS If div within div expands expand parent div

    - by Ozaki
    I have a setup lets say like follows: <div id="nav"> <div id="innernav"> //With dynamic content here. </div> </div> I am running a script that sizes #nav to the size of the browser window in height. But sometimes my dynamic content is now getting bigger than the height of the window.. Is there a way I can enforce that when #innernav exceeds #nav that #nav will increase in size?

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  • defaults for to_json in Rails with :include

    - by prateekdayal
    Let us say I have a model Post which belongs to a User. To convert to json, I do something like this @reply.to_json(:include => {:user => {:only => [:email, :id]}, :only => [:title, :id]) However, I want to set some defaults for this so I don't have to specify :only everytime. I am trying to override as_json to accomplish this. When I add as_json in User model, it is called when I do @user.to_json but when user is included in @reply.to_json, my overriden as_json for User is ignored. How do I make this work? Thanks

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