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how do i save large amount of data into DB using DataMapper

Im trying to insert into the database but sinatra throws this error DataObjects::ConnectionError at / database is locked at line Name.create(babyname: name ,year1900: results[0] ,year1910: results[...
msc's user avatar
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1 answer
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can I join two join resources together?

The way I have implemented it, it would appear not. In data_mapper terms - I have a join resource Entry, that joins Driver, Team and Season I have a join resource Race that joins Track and Season I ...
JoeyC's user avatar
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How can I resolve the DataObjects::ConnectionError when running with data_mapper (Ruby 1.8.7)

When I run this code require 'rubygems' require 'data_mapper' require "sqlite3" DataMapper::setup(:default, "sqlite3://#{Dir.pwd}./prod.db") class Person include DataMapper::Resource property :...
JoeyC's user avatar
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How to: Single Table Inheritance in DataMapper?

I'm learning Sinatra (1.3.2) and chose to use DataMapper (1.2.0) as ORM and an in-memory SQLite (1.3.6) DB to start. Two models, Books and Downloads, are sharing most attributes, so I looked into ...
Marius Butuc's user avatar
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1 vote
1 answer
162 views

Select unique records without natural keys

For example, I have table names: id integer primary key, name text unique and unique index for names(name). I want to select records by index-style syntax: (n12, nBill) = (Name[12], Name['Bill']) or ...
emett's user avatar
  • 128