Well I was developing an application usin Symfony 1.4 and Doctrine when I realized a major drawback on my Zend Lucene implementation. I have a model called Publication that is related (via foreign key relations) with a few other models (subjects, gen
I want to create 3 Tables (I will call them Elements), that have nearly the same structure, and 4 tables (Informations) for each Elements that are linked with foreign keys. The Informations have the same structure CREATE TABLE Information ( element I
I need to model a database with these conditions: One table for Projects Another table for Programmers A Programmer can be Senior or Junior Each project may have several Programmers but at least one Senior must exist. I would like to define some kind
I implemented the storage of one-to-many models through a view. The model structure is as follows: A DagRun model Many DagRunModel, which have a FK to a DagRun Many DagModelParam, which have a FK to a DagRunModel So as follows, I Create all the insta
I'm working through the design of a Django inventory tracking application, and have hit a snag in the model layout. I have a list of inventoried objects (Assets), which can either exist in a Warehouse or in a Shipment. I want to store different lists
I have 2 models for 2 different databases: Databases were created manually but it should change nothing. class LinkModel(models.Model): # in 'urls' database id = models.AutoField(primary_key=True) host_id = models.IntegerField() path = models.CharFie
I have 2 tables in my database that I'm trying to create Linq2Sql entities for. There's more to them than this, but this is essentially what they come down to: Rooms UserActivity -------- -------- RoomID ActivityID RoomID (foreign key on Rooms.RoomID
USE [Fk_Test2] GO /****** Object: Table [dbo].[Owners] Script Date: 08/20/2010 16:52:44 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [dbo].[Owners]( [Owner] [varchar](10) NOT NULL, CONSTRAINT [PK_Owners
I have in my mysql databse 2 tables : 1.teacher(id(pk),name,phone,email) 2.student(id(pk),teacher'sid(FK),name,phone,email) The student table has a Foreign Key , teacher'sid ,that refrences to teacher.id . I want to select the teachers that their id(
Suppose, I have the the following 'create table' scripts: CREATE TABLE userrole ( id varchar(45) NOT NULL, name varchar(45) NOT NULL, description text NULL, PRIMARY KEY (id) ) ; CREATE TABLE users ( id varchar(45) NOT NULL, name varchar(45) NOT NULL,
I'm building an Android application that can take pictures and videos. I need to build a RESTful web service using Ruby on Rails. If I click send option in my application those pictures and videos should get uploaded to web service. Here are my conce
I followed suggestion from this question But i need to name one field of query_set to date filed of another object My models are class Choice(models.Model): question = models.ForeignKey(Question, related_name='choice', on_delete=models.CASCADE) choic
I have these tables: STOCKDIARY - ID, DATE, PRODUCT, UNITS, PRICE PRODUCTS - ID, NAME, CONSIGNOR CONSIGNORS - ID, NAME, COMMISSION I have setup all associations. So that if in my view I use: stockdiary.product.consignor.try(:COMMISSION) I get the rig
I have table A with a primary key on column ID and tables B,C,D... that have 1 or more columns with foreign key relationships to A.ID. How do I write a query that shows me all tables that contain a specific value (eg 17) of the primary key? I would l