I have a simple MySQL table: % mysql -u rampion dev -e 'describe person' +-------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+-...

Some background first: I have a few rather simple data structures which are persisted as json files on disk. These json files are shared between applications of different languages and different en...

When I upgraded my server to php7 codeigniter and in particular datamapper ORM gives me this error... Message: Accessing static property DataMapper::$config as non static Filename: libraries/da...

I have recently started working on Flask and Flask-SQLAlchemy. Coming from Django background I found Flask-SQLAlchmey to be quite complex. I have read that SQLAlchemy implements Data Mapper pattern...

I am getting different date formats for two web-service calls using same mapper. By mapper I mean, map:162, ConfigurableMapper (ma.glasnost.orika.impl) The OTB call to get orders i.e. OrdersC...

I've come across a couple of ORMs that recently announced they are planning to move their implementation from Active Record to Data Mapper. My knowledge of this subject is very limited. So a questi...

I'm trying to brush up on my design pattern skills, and I'm curious what are the differences between these patterns? All of them seem like they are the same thing - encapsulate the database logic f...

Well I've been trying to find out the difference between data mapper and repository, but up to now I still have not. It seems to me that the expert programmer said "Repository is another layer of a...

I would like to define my custom serialization strategy (which fields to include), while using Jackson. I know, that I can do it with views/filters, but it introduces very bad thing - using string-...

I've been working with active record and data mapper implementations of ORM enough to know the problems with using active record implemented ORM in my large projects. Right now I'm thinking to migr...

I have a simple model with the following properties: property :title, String, :required => true, :length => 1..200 property :body, String, :required => true, :length => 1..200 W...

I have a Ruby program that uses DataMapper as an ORM to talk to an in-memory SQLite DB. This has been working fine, however I just recently added a new DM class, and corresponding table. To my surp...

I am using the Data Mapper Pattern and I am wondering what is the best way to handle relationships with that pattern. I spent a lot of time searching for solutions in Google and Stack overflow, I f...

This simple example uses DataMapper's before :save callback (aka hook) to increment callback_count. callback_count is initialized to 0 and should be set to 1 by the callback. This callback is invo...

I use symfony 2.3 and php doctrine 2. The program has the following models: entity Order - a typical customer order entity BadOrderEntry(fields: id, order - unidirectional one-to-one relationshi...

I'm setting up my db model using datamapper and dm-contraints. I have two models which have a many to many relationship but when I try to destroy one, the only message I get is false. Is it possib...

I'm using datamapper with ruby to store data to certain tables. Several of the tables have very large amounts of information and I want to clear them out when the user 'rebuilds database' (it basic...

In applying the Data Mapper pattern, the model (Domain Model in my case) is responsible for business logic where possible, rather than the mapper that saves the entity to the database. Does it see...

here's what I have: class Entry { public $id; public $name; public $seoName; public $timeCreated; public function someFunction() { } } class EntryMapper { protected $db; public funct...

I'm looking to use a more separated system for my models in a Ruby on Rails project. It looked like the solution was DataMapper. However, I see that none of their repositories have been updated in ...

I've almost finished my Data Mapper, but now I'm at the point where it comes to relationships. I will try to illustrate my ideas here. I wasn't able to find good articles / informations on this to...

I'm sing the Data Mapper Pattern in Zend Framework. This works well so far, but now I got to a point where I need your help/opinion. So let's start with the Code: We got a table with several Perso...

I am new to Sinatra and I am trying to make a database using SQLite3 and Datamapper. I installed both gems and also the adaptor and then tried to execute this code in a file: #config require 'sina...

I'm developing a RESTful ZF2 based application and using a TableGateway implementation (subclass of the Zend\Db\TableGateway) in combination with a simple mapper for the model, similar to the Album...

From this question we have implemented the ColumnAttribute association with the corresponding property, but when Linq to SQL tries to map this property to a Column it doesn't work. Our property an...