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  • IOS SDK : first advices for beginners

    - by VdesmedT
    I too often answer the same kind of questions regarding basic topics like memory management, UITableView, Interface Orientation, MVC, etc... I understand very well that everyone starting with that SDK is too exited about getting its hand on it but a few reading would save them hours of debugging and the frustration that come along with the feeling that "We miss something here". I'd like experience users to share the few small articles, white papers, docs, book chapters that helps other save their time and avoid frustration. My first vote would be for : IOS Memory Management Guide View Controller Programming Guide Table View Guide And as a General recommendation, read the Overview section that come along with every class documention in the reference library, they contains most of what you need to know to avoid big traps !

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  • Adding buttons dynamically to a uitableviewcell - iPhone app

    - by alan
    I have a verb conjugation app that displays verb translations in the first cell of a table. At present the translation list is just a string (comma-separated list) but I'd like to change it to have clickable buttons. I had a play around adding buttons to the cell view without too much success but my only experience with custom cells has been using specific positioning so I'm unsure as to how to achieve a dynamic list of buttons (varying widths) within a cell. Any help greatly appreciated. Cheers.

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  • What would be the best schema to store the 'address' for different entities?

    - by Cesar
    Suppose we're making a system where we have to store the addrees for buildings, persons, cars, etc. The address 'format' should be something like: State (From a State list) County (From a County List) Street (free text, like '5th Avenue') Number (free text, like 'Chrysler Building, Floor 10, Office No. 10') (Yes I don't live in U.S.A) What would be the best way to store that info: Should I have a Person_Address, Car_Address, ... Or the address info should be in columns on each entity, Could we have just one address table and try to link each row to a different entity? Or are there another 'better' way to handle this type of scenario? How would yo do it?

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  • How to use LINQ to SQL to create ranked search results?

    - by quakkels
    I am looking for a way to use l2s to return ranked result based on keywords. I would like to take a keyword and be able to search the table for that keyword using .contains(). The trick that I haven't been able to figure out is how to get a count of how many times that keyqord appears, and then .OrderByDescending() based on that count. So if i had some thing like: string keyword = "SomeKeyword"; IQueryable<Article> searchResults = from a in GenesisRepository.Article where a.Body.Contains(keyword) select a; What is the best way to order searchResults based on the number of times keyword appears in a.Body? Thanks for any help.

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  • Help me refactor this nasty Ruby if/else statement

    - by Suborx
    Hello, so I have this big method in my application for newsletter distribution. Method is for updating rayons and I need to assign a user to rayon. I have relation n:n through table colporteur_in_rayons which has attributes since_date and until_date. I am a junior programmer and I know this code is pretty dummy :) I appreciate every suggestion. def update rayon = Rayon.find(params[:id]) if rayon.update_attributes(params[:rayon]) if params[:user_id] != "" unless rayon.users.empty? unless rayon.users.last.id.eql?(params[:user_id]) rayon.colporteur_in_rayons.last.update_attributes(:until_date => Time.now) Rayon.assign_user(rayon.id,params[:user_id]) flash[:success] = "Rayon #{rayon.name} has been succesuly assigned to #{rayon.actual_user.name}." return redirect_to rayons_path end else Rayon.assign_user(rayon.id,params[:user_id]) flash[:success] = "Rayon #{rayon.name} has been successfully assigned to #{rayon.actual_user.name}." return redirect_to rayons_path end end flash[:success] = "Rayon has been successfully updated." return redirect_to rayons_path else flash[:error] = "Rayon has not been updated." return redirect_to :back end end

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  • Get the count of A -> B and B->A without duplicates

    - by TomGasson
    I have a table like so: index|from | to ------------------ 1 | ABC | DEF 2 | ABC | GHI 3 | ABC | GHI 4 | ABC | JKL 5 | ABC | JKL 6 | ABC | JKL 7 | DEF | ABC 8 | DEF | GHI 9 | DEF | JKL 10 | GHI | ABC 11 | GHI | ABC 12 | GHI | ABC 13 | JKL | DEF And I need to count how the total times between the points (regardless of direction) to get the result: A | B | count ----------------- ABC | DEF | 2 ABC | GHI | 5 ABC | JKL | 3 DEF | GHI | 1 DEF | JKL | 2 So far I can get: SELECT `a`.`from` as `A`, `a`.`to` as `B`, (`a`.`count` + `b`.`count`) as `count` FROM (SELECT `from`, `to`, count(*) as `count` FROM `table` GROUP BY 1,2) `a` LEFT OUTER JOIN (SELECT `from`,`to`, count(*) as `count` FROM `table` GROUP BY 1,2) `b` ON `a`.`from` = `b`.`to` AND `a`.`to` = `b`.`from` But I'm unsure how to remove the A/B swapped duplicates.

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  • NHibernate: Can I access a generated primary key after saving a model?

    - by littlecharva
    Howdy, So I've got a simple table with an ID field that's incrementally generated on INSERT. I've set the mapping up in NHibernate to reflect this: <id name="ID"> <generator class="identity" /> </id> And it all works fine. Trouble is, I need to get the generated ID after I've saved a new model to use elsewhere: var model = new MyModel(); session.SaveOrUpdate(model); But at this stage model.ID == null, not the ID. Any ideas? Anthony

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  • UPDATE from SELECT complains about more that one value returned

    - by Álvaro G. Vicario
    I have this data structure: request ======= building_id lot_code building ======== building_id lot_id lot === lot_id lot_code The request table is missing the value for the building_id column and I want to fill it in from the other tables. So I've tried this: UPDATE request SET building_id = ( SELECT bu.building_id FROM building bu INNER JOIN lot lo ON bu.lot_id=lo.lot_id WHERE lo.lot_code = request.lot_code ); But I'm getting this error: Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , , = or when the subquery is used as an expression. Is it due to wrong syntax? The data model allows more than one building per lot but actual data doesn't contain such cases so there should be at most one building_id per lot_code.

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  • Dreamweaver recordset filter - Display all records as default

    - by Drew
    I am trying to create a simple search form to filter the results in the dynamic table. The search form is on the same pages as the results and posts to itself. I get the search string from the post variable. It is working, but I can't figure out how to set the default value to display all results. Dreamweaver automatically sets the default value to -1, and therefore no results are displayed on the initial load. How do I change this to display ALL records as default and the filter only if there is search string defined.

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  • ASP.NET MVC / Linq-to-SQL classes: Can I get it to infer readable display names?

    - by Gary McGill
    If I have a table Orders with fields CustomerID, OrderID and OrderDate, then the "Linq-to-SQL classes" generated class will be called Orders, with members called CustomerID, OrderID and OrderDate. So far so good. However, if I then do Html.LabelFor(m => m.OrderDate) then the generated text will be "OrderDate" instead of "Order Date". I tried using Order_Date as the field name, but that didn't work. Is there any way to get it to infer a better display name? [I know that I can use data annotations to specify the display name explicitly, but I really don't want to do that for all my classes/members - I just want it to work by convention.]

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  • How to insert an n:m-relationship with technical primary keys generated by a sequence?

    - by bitschnau
    Let's say I have two tables with several fields and in every table there is a primary key which is a technical id generated by a database sequence: table1 table2 ------------- ------------- field11 <pk> field21 <pk> field12 field22 field11 and field21 are generated by sequences. Also there is a n:m-relationship between table1 und table2, designed in table3: table3 ------------- field11 <fk> field21 <fk> The ids in table1 und table2 are generated during the insert statement: INSERT INTO table1 VALUES (table1_seq1.NEXTVAL, ... INSERT INTO table2 VALUES (table2_seq1.NEXTVAL, ... Therefore I don't know the primary key of the added row in the data-access-layer of my program, because the generation of the pk happens completely in the database. What's the best practice to update table3 now? How can I gain access to the primary key of the rows I just inserted?

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  • Android: Get the screen resolution / pixels as integer values

    - by poeschlorn
    Hi guys, this is a really simple question on which I've found no answer :/ How can I quickly access the screen resolution (width, height) as integer values? I've tried this one, but it always shows zero on my emulator: DisplayMetrics dm = new DisplayMetrics(); int width = dm.widthPixels / 2; In my case I want to dynamically create a table with tableRows, each containing two cols. This cols all shall fill half of the screen in width. Can someone give me a hint?

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  • HTML input text box vs CakePHP Automagic Form Elements

    - by kwokwai
    Hi all, I was manually creating a simple form with one input text box field like this: <form action="/user/add" method="post"> <input type="text" name="data[user_id]" value="1"> But when I call $this->model->save($this->data) in the Controller, nothing was saved to the Table. Only when I used this and the data in the field was written to the database successfully: $form->create(null, array('url' => '/user/add')); echo $form->input('user_id', array('label' => 'User ID', 'value' => '1'));

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  • Lookup function not working (RS SP2)

    - by Al Reyes
    Hi, I made the upgrade to SP2. I'm trying to use the Lookup function to link data from two different servers. I'm trying first a simple exercise linking data from two datasets from the same server, having one dataset with journals and the other with the account description. My Expression looks like this at a field on the table I have: =Lookup(Fields!ACTINDX.Value,Fields!ACTINDX.Value,Fields!ACTDESCR.Value,"ACCTINFO") I made sure of the names and using only uppercases for datasets and fields but I'm receiving the following message when I try to preview: "An error occurred during local report processing. The definition of the report '/DETAIL' is invalid. The Value expression for the text box 'ACTINDX' refers to the field 'ACTDESCR'. Report item expressions can only refer to fields within the current dataset scope or, if inside an aggregate, the specified dataset scope". I'll appreciate any suggestions. Regards, Al

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  • Locate Database File in SQLITE

    - by Nagendra Baliga
    I have created a file named "MyFile.db" using SQLite3 from my C#.net application. This file got created in my "D:\MyProject\bin" folder. I have created a table named "MyTable" inside "MyFile.db" from same C# app. Now I am running sqlite3.exe from my "C:\" drive to get Command Line Shell For SQLite. How can I get the file "D:\MyProject\bin\MyFile.db" in the SQLite Command Line Shell i.e, how can I locate the file "MyFile.db" in the command shell to get the data from "MyTable".

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  • JqueryUI serialize data not working on first record

    - by peace
    I am using jqueryUI v1.8. I have created a modal dialog form to edit records of a table. When the edit link on the record is clicked the record data is displayed on the form and the user edits the record. When the user submits this form the data is serialized and posted via ajax to update the database. This works well with all records except the first one. Nothing is posted to server for update only for the first record. alert(serializeddata); is empty. Similarly, The first form element in every record chosen for editing does not show the actual value the first time. Once you cancel editing and close the dialog and reopen you can see the fields accurate data. How do I resolve this?

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  • NHibernate auditing in disconnected mode

    - by Ciaran
    I'm developing an app with a Silverlight UI, transferring my domain objects over WCF and persisting them via NHibernate. I'm therefore working with NHibernate in a disconnected mode. I'm already using the NHibernate PreUpdate and PreInsert EventListeners to perform some metadata operations (updating Create/Update date, created/updated by etc) and they are working fine. I now have a requirement to perform data logging on some of my domain objects. So I will need to have an audit table that has a before-save and after-save state of certain entities. I had wanted to use the @event.Persister.OldState and @event.Persister.NewState to perform this logging, but because I am in a disconnected scenario (using different Sessions from when data is retrieved to when it is persisted), @event.Persister.OldState is null when I am saving my changes back to the database. How is anyone else doing data logging in a disconnected scenario with NHibernate?

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  • Should I continue using R v2.8.1 ?

    - by Mehper C. Palavuzlar
    I've been using R v2.8.1 for a long time. Normally I would upgrade it to the latest version but something keeps me away from the builds later than 2.8.1: I use read.table(file=file.choose(),header=TRUE) frequently in my libraries. After upgrading to 2.9.0, R started not to remember the latest directory used while selecting file. I downgraded to 2.8.1 and now R can remember again the last directory used. I don't know why they changed that behavior in this direction but this is absolutely crucial for me. It wastes my time in v2.9.0 every time I try to find a specific directory when R cannot remember it. Now R 2.10.1 is released. I don't know if they have corrected this issue. Should I upgrade or is it just enough to continue using v2.8.1? Will I miss something if I stick at 2.8.1?

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  • getTitle() on Doctrine i18n with non-default language

    - by fesja
    Hi, I'm having a problem getting the title of an object from my i18n object in Doctrine 1.1.6 / Symfony 1.2 I have the following Doctrine Table method: public function getPlace($place_id, $lang=''){ $q = Doctrine::getTable('Place') ->createQuery('p'); if($lang != '') $q = $q->leftJoin('p.Translation ptr') ->addWhere('ptr.lang = ?', $lang); return $q->addWhere('p.id = ?', $place_id) ->fetchOne(); } Then on the view file if I do $place-getTitle(), it prints the title correctly in the language I wanted. However, if I do $place-getTitle() on an action it returns nothing, I have to do $place-Translation['es']-title to get the title in Spanish. If I work with the default language ('en') $place-getTitle() works. Any idea on how to make $place-getTitle() to work always? thanks!

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  • Simplest way to extend doctrine for MVC Models

    - by RobertPitt
    Im developing my own framework that uses namespaces. Doctrine is already integrated into my auto loading system and im now at the stage where ill be creating the model system for my application Usually i would create a simple model like so: namespace Application\Models; class Users extends \Framework\Models\Database{} which would inherit all the default database model methods, But with Doctrine im still learning how it all works, as its not just a simple DBAL. I need to understand whats the part of doctrine my classes would extend where i can do the following: namespace Application\Models; class Users Extends Doctrine\Something\Table { public $__table_name = "users"; } And thus within the controller i would be able to do the following: public function Display($uid) { $User = $this->Model->Users->findOne(array("id" => (int)$id)); } Anyone help me get my head around this ?

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  • horizontal align in a div

    - by Jason94
    I have a box like this: <div id="selectBox"> Select: <select> <option>1</option> <option>2</option> </select> </div> How do i get them aligned so that they are horizontal in the middle of each other, the baseline of the "Select" text and the content of the select box ("1").(and not the box itself). I can solv this by wrapping a table around them and make two cells but i feel that method is very crude.

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  • Export MySQL Data as Insert Statements

    - by gav
    Hi All, I'm working in Ubuntu with MySql and I also have Query Browser and Administrator installed, I'm not afraid of the command line either if it helps. I want simply to be able to run a query and see a result set but then convert that result set into a series of commands that could be used to create the same rows in a table of an identical schema. I hope the question makes sense, it's quite a simple problem and one that must have been solved but I can't for the life of me work out where this kind of conversion is made available. Thanks in advance, Gav

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  • How to repopulate DataTables when having lots of data?

    - by chobo2
    Hi I am using datatables jquery plugin. I now have to clear the entire datatable and populate it with new data on the fly(all done through ajax). So what I was thinking to do is when I need to do this. Destroy the datatable remove the data html call up the partial view that renders the table Rebind the datatable with jquery. However it seems that datatable has no destroy method. So I know you can set the datatable to do something with ajax but I am not sure how. My datatable just uses the dom way when the page is loaded. I don't want to use the "fnAddData" as I am not sure how to format this 2d array they want and I don't think this is the best option. I think the best option is some how render the partial view back and use there ajax plugin. But I am not sure where that is or how to use it(I know it exists but that's about it). Thanks

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  • SQL Server 2005 - Find minimum unused value within a range

    - by Geo Ego
    I have a situation similar to the following question: Insert Data Into SQL Table Where my scenario differs is that I have a non-auto-incrementing primary key field that can have a range between 1000 and 1999. We only have about a hundred values in it thus far, but the maximum value has already been taken (1999), and there are gaps in the numbering sequence. Thus, I need to find a value that is between 1000-1999 and not taken. For instance, if my current values are, for example, 1000, 1001, 1003, and 1999, I would want the query to return 1002.

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  • Checking if a boolean column is true in MySQL/Rails

    - by Pygmalion
    Rails and MySQL: I have a table with several boolean columns representing tags. I want to find all the rows for which a specific one of these columns is 'true' (or I guess in the case of MySQL, '1'). I have the following code in my view. @tag = params[:tag] @supplies = Supply.find(:all, :conditions=>["? IS NOT NULL and ? !=''", @tag, @tag], :order=>'name') The @tag is being passed in from the url. Why is it then that I am instead getting all of my @supplies (i.e. every row) rather than just those that are true for the column for @tag. Thanks!

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