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• Fitting place names into map shapes

  - by Old Man

  I'm drawing shapes using GDI+ using a list of lat/lon floats, and I need to place the name of the place within the borders of the polygon. Simply centering the text in the bounding rectangle doesn't work for irregular shapes. I have the text and the font so I can get the size of the rectangle that the text will need to fit in, but at that point I'm stuck. This seems like a common problem that all mapping software solves, as well as the kind of thing you would find in an algorithm or computer graphics textbook. So, given a list of floats for a polygon and a rectangle, is there a way to get the best possible point to place the text, using: 1) GDI+; 2) SQL Server Geospatial; or 3) c# code (or c, pseudocode, etc)

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• Problem in updating field in codeigniter please help

  - by pokhara

  It says , you must use the “set” method to update an entry. Pls help My model is $this->db->where('id', $this->uri->segment(3)); $this->db->update('mytable', $data); My controller is $data = $this->db->select('mytable', $_POST); $this->contact_model->model_update_function($data);

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• Polymorphic association inserts 0 instead of raising error when column is misconfigured as Integer

  - by zetetic

  Here's one that stumped me for a while, though in retrospect it should have been obvious. I was getting the error message NoMethodError: undefined method `constantize' for 0:Fixnum when accessing a model through a polymorphic association. Turns out the table on the belongs_to side of the association had an integer type column instead of a string. Easily fixed, but it seems like Rails ought to raise an error in this situation -- instead it happily adds the row with 0 in the type column.

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• Save from viewController?

  - by fuzzygoat

  I have a very small bit of data that I would like to archive from my apps view. My question is, its far easier to save this data from the viewController, but should I really be pushing it back into my model and saving it there? BTW: I also need to do a quick load of this data when the app starts up.

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• resend confirm instructions via devise

  - by Paul 'Whippet' McGuane

  what im trying to achieve is that when an admin views a list of members, they can click a link to resend the instructions on how to confirm that members accounts. this is the code im using to try and achieve this = link_to 'Resend Confirmation', confirmation_path(:user => {:email => user.email}), :remote => :true im hoping that this would allow me to pass the users email through to the link have it then sent to that user though the issue im getting is Could not find a valid mapping for {:user=>{:email=>"[email protected]"}}

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• Copy information only, from an external webpage and import it into a form using PHP

  - by mpw5013

  I'm looking to extract key pieces of information from the following website to simplify the signup process. More or less I want to build a quick import script that will grab the following: 1) Username 2) Type (Model / Photographer) 3) Age 4) Sex 5) City, State, Zip 6) Email 7) Photos I will then take all of this data and add it to join form / push the photos through a manipulation script. Any ideas?

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• Database design -- does it respect 3rd NF?

  - by Flavius

  Hi I have the following relations (tables) in a relational model Person person_id, first_name, last_name, address Student person_id, matr_nr Teacher person_id, salary Lecture lecture_id, lect_name, lect_description Attendees lecture_id, person_id, date I'm wondering about the functional dependencies of Student and Teacher. Do these tables respect the 3rd normal form? Which should be the primary keys of these tables?

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• Hibernate - Persisting polymorphic joins

  - by Marty Pitt

  Hi I'm trying to understand how to best implement a polymorphic one-to-many in hibernate. Eg: @MappedSuperclass public class BaseEntity { Integer id; // etc... } @Entity public class Author extends BaseEntity {} @Entity public class Post extends BaseEntity {} @Entity public class Comment extends BaseEntity {} And now, I'd like to also persist audit information, with the following class: @Entity public class AuditEvent { @ManyToOne // ? BaseEntity entity; } What is the appropriate mapping for auditEvent.entity? Also, how will Hibernate actually persist this? Would a series of join tables be generated (AuditEvent_Author , AuditEvent_Post, AuditEvent_Comment), or is there a better way? Note, I'd rather not have my other entity classes expose the other side of the join (eg., List<AuditEvent> events on BaseEntity) - but if that's the cleanest way to implement, then it will suffice.

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• Interesting or unique types encountered?

  - by user318904

  What is the most strange or unique type you have seen in a programming language? I was thinking the other day about a "random variable", ie whenever it is evaluated it yields a random value from some domain. It would require some runtime trickery. Also I bet there can be some interesting mapping of regular expressions into a type system. It does not necessarily have to be a built in or primitive type, but some random class that implements a domain specific type won't really be interesting just unique.

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• URL redirection if wrong url

  - by xRobot

  I have this method in my book model: def get_absolute_url(self): return "/book/%s/%s/%i/%i/" % ( self.book_title, self.book_editor, self.book_pages, self.id) So the urls of each book are like this: example.com/book/the-bible/gesu-crist/938/12/ I want that if there is an error in the url, then I get redirected to the real url by using book.id in the end of the url. For example if I go to: example.com/book/A-bible/gesu-crist/938/12/ the I will get redirected to: example.com/book/the-bible/gesu-crist/938/12/ How can I do that ?

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• how to save related models with non-null foreign key

  - by Fortress

  I have a model called user which has_one email. I put the foreign key (NOT NULL) inside users table. Now I'm trying to save it in the following way: @email = Email.new(params[:email]) @email.user = User.new(params[:user]) @email.save This raises a db exception, because the foreign key constraint is not met (NULL is inserted into email_id). How can I elegantly solve this or is my data modeling wrong?

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• ASP.NET MVC: Optimally render element attribute

  - by majkinetor

  I know there is some syntax with ? to optionally render attribute. But I can't find it now that I need it ... Something like: < input checked=<%? model.IsActivated % > ... Thanks.

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• [grails + xfire] How to handle errors in SOAP services?

  - by Mulone

  Hi all, I'm implementing a web service on the xfire plugin. I was wondering how I'm supposed to handle the errors. I tried with this setup but the error is not returned to the SOAP client: GaSession[] myMethod( String userId ) throws MyException{ GaUser user = GaUser.findByUserId( userId ) if (!user) throw new MyException("user ${userId} does not exist") // do stuff and return valid results } Is there a standard way to handle errors and return them to the client in a clear way? My log is full of messages like: 2010-06-13 18:20:40,926 [Thread-289] DEBUG aegis.XMLClassMetaInfoManager - Mapping file : /com/mycompany/MyClass.aegis.xml not found. Is there a way to fix this? Cheers!

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• Hint to MVC view generator for primary key on POCOs

  - by myotherme

  When generating a strongly-typed Index view for my model I always get the following: <%= Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) %> I am using a POCO class for use with our ORM. As I understand it when using LINQ to SQL the view code will know which field is the primary key. Is there a way that I can an attribute to the property (or class) that will let the View Generator know that the ID property if the primary key?

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• Confusion between JPA and Hibernate cascading

  - by Jay

  I'm using Hibernate 3.6 and have my code annotated (versus using hibernate mapping files). I ran into the known "problem" of using JPA cascading options that are not compatible with Hibernate's CascadeType (see this link for more info http://www.mkyong.com/hibernate/cascade-jpa-hibernate-annotation-common-mistake/). I was hoping to get a bit more clarification on the problem. I have some particular questions: 1) So @Cascade({CascadeType.SAVE_UPDATE}) works for saveOrUpdate(), but does it apply also if I use merge() or persist()? or do I have to use all three Hibernate CascadeTypes? 2) How do I decide whether to use JPA cascade options or the Hibernate @Cascade annotation instead? 2) There is a "bug" filed against this in Hibernate, but the developers apparently see this as a documentation issue, (I'm completely disagree with them), and I'm not seeing that it was addressed in said documentation. Anyone know why this is "working as designed" and not a bug in Hibernate's JPA implementation? Many thanks in advance.

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• Logging in MVC (Zend Framework)

  - by superdario

  Is there a best-practice when it comes to where to put the logging functionality in an MVC application, for example a Zend Framework application (Zend_Log)? Should I put the logging in the controller or in the model? Or in both? If in both, should they have the same logger or a separate one?

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• hibernate - Postgres- target lists can have at most 1664 entries

  - by Vineyard

  We are using hibernate, postgres 8.3x Our entities are many to one mapped with eager fetching. We have multiple associations with Many to one mapping. As we added new columns to any other existing entities, We are getting below error: target lists can have at most 1664 entries I searched internet and they say this is due to More number of select statements in sql query (generated by hibernate) Can you any body please let us know if there is any configuration (in postgres) to update max number columns in configuration or any other solution to solve this issue. Thank you in advance.

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• Disable automatic index on related object id from yml

  - by BugBusterX

  Doctrine Automatically creates indexes on columns that are used to define object relations, For example user: id, name message: id, sender_id, receiver_id, message if I define relationship between message and user in a way that message has one Sender and has one Receiver, doctrine will automatically index sender_id and receiver_id fields when I generate sql from model. I would like to disable index on sender, because I manually create index with sender_id and receiver id together. How can I disable auto generated index?

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• zend one controller many views

  - by Sherif

  hi there when i build my web site it was handling only one interface but now i need to handle many interface i can detect which site to communicate and isolate it from other sites but i stuck with this : all the sites have the same views ... is there are a way so i can rander from the same controller different views .. something like application application controller model site_1_view site_2_view is this possible ??!!

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• WPF Custom Control containing a List of Objects

  - by Cecile

  Hi, I have an object Trip in my object model containing a list of Nodes (e.g. NodeName, StartDate and EndDate) and I am trying to build a Custom control in WPF that draws list of rectangles: one for each Node contained in the Trip object (based on StartDate en EndDate) Would you have any hint on how the Custom Control should be structured so that I can bind a Trip object to it and draw the rectangles properly, please?

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• How do I serve a large file using Pylons?

  - by Chris R

  I am writing a Pylons-based download gateway. The gateway's client will address files by ID: /file_gw/download/1 Internally, the file itself is accessed via HTTP from an internal file server: http://internal-srv/path/to/file_1.content The files may be quite large, so I want to stream the content. I store metadata about the file in a StoredFile model object: class StoredFile(Base): id = Column(Integer, primary_key=True) name = Column(String) size = Column(Integer) content_type = Column(String) url = Column(String) Given this, what's the best (ie: most architecturally-sound, performant, et al) way to write my file_gw controller?

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• Adding index key in Grails' Domain

  - by firnnauriel

  I tried following this reference and this is now my domain's code: class SnbrActVector { long nid String term double weight static mapping = { version false nid index:'Nid_Idx' } static constraints = { term(blank:false) } } What I want is to do is to add an index key for 'nid' column. I dropped the existing table and run the app again so the table is then recreated. However, when i check for list of indices, I can't see a 'Nid_Idx', only available is 'PRIMARY'. Do I have to manually create the index and name it 'Nid_idx in my mysql database? Thanks.

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• Calculate value from two field in third field

  - by terence6

  I'm trying to create a query, that will calculate sum of products on invoice. I have 3 tables : Product (with product's price) Invoice (with invoice id) Products on invoice (with invoice id, product id and number of particular products) So in my query I take invoice_id (from invoice), price (from product),number of products sold and invoice_id (from products on invoice) and calculate their product in fourth column. I know I sohuld use 'Totals' but how to achieve that ? Model:

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• What's the most simple way to retrieve all data from a table and save it back in .NET 3.5?

  - by zoman

  I have a number of tables containing some basic (business related) mapping data. What's the most simple way to load the data from those tables, then save the modified values back. (all data should be replaced in the tables) An ORM is out of question as I would like to avoid creating domain objects for each table. The actual editing of the data is not an issue. (it is exported into Excel where the data is edited, then the file is uploaded with the modified data) The technology is .NET 3.5 (ASP.NET MVC) and SQL Server 2005. Thanks.

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• Help me to complete my UITableView to Navigation Controller [iPhone SDK]

  - by Momeks

  I built an application. On the one my views I used TableView. So now I want to change this Table view to a navigation controller. 1- How can I change UITable view to Navigation Controller. I add navigation codes but I got some alert! [I know I must identify my navigation delegate, but HOW ?] Here is my Mapping Views! AppNameViewController FirstViewController [on this view I used table view and I want change to nav] SecondViewController ThirdViewControllerController

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