Mi aplicación ha comenzado a generar errores cuando intento guardar una clase en particular en la base de datos. No estoy seguro de qué fue exactamente lo que hizo que esto empezara a suceder. He estado teniendo todo tipo de problemas con la base de datos durante los últimos días ...

En cualquier caso, mi modelo parece estar funcionando bien (está calculando correctamente todos los valores de before_save), pero luego intenta guardarlo en la base de datos y explota.

SQL (0.8ms)  INSERT INTO "portfolios" ("correlation_matrix", "created_at", "data", "mean_return", "std_dev", "updated_at", "weights") VALUES ($1, $2, $3, $4, $5, $6, $7) RETURNING "id"  [["correlation_matrix", "--- \n- - 1.0\n  - -0.4873114574375062\n- - -0.4873114574375062\n  - 1.0\n"], ["created_at", Sat, 16 Jun 2012 15:12:35 MDT -06:00], ["data", {"TSX"=>0.5, "VUSTX"=>0.5}], ["mean_return", #<BigDecimal:7fadb119b750,'0.488052381E-1',18(45)>], ["std_dev", #<BigDecimal:7fadb119b598,'0.7668705159 123244E-1',18(45)>], ["updated_at", Sat, 16 Jun 2012 15:12:35 MDT -06:00], ["weights", "--- \nTSX: 0.5\nVUSTX: 0.5\n"]]

Lanza este error:

ActiveRecord::StatementInvalid: PG::Error: ERROR:  Syntax error near 'T' at position 5

No tengo idea de lo que significa este error (o qué significa esta "T" ...), ni siquiera de dónde comenzar a solucionarlo ... Cualquier ayuda sería apreciada.

Puedo publicar cualquier información que pueda ser necesaria para resolver esto ...

Migración relevante:

  create_table :portfolios do |t|
    t.text :weights
    t.decimal :mean_return, :precision => 15, :scale => 10
    t.decimal :std_dev, :precision => 15, :scale => 10
    t.text :correlation_matrix
    t.hstore :data

    t.timestamps
  end

  execute "CREATE INDEX portfolios_gin_data_hstore ON portfolios USING GIN(data);"

Rastreo de pila completa:

    ActiveRecord::StatementInvalid: PG::Error: ERROR:  Syntax error near 'T' at position 5
: INSERT INTO "portfolios" ("correlation_matrix", "created_at", "data", "mean_return", "std_dev", "updated_at", "weights") VALUES ($1, $2, $3, $4,     $5, $6, $7) RETURNING "id"
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/postgresql_adapter.rb:1164:in `get_last_result'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/postgresql_adapter.rb:1164:in `exec_cache'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/postgresql_adapter.rb:665:in `block in exec_query'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/abstract_adapter.rb:280:in `block in log'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activesupport-3.2.6/lib/active_support/notifications/instrumenter.    rb:20:in `instrument'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/abstract_adapter.rb:275:in `log'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/postgresql_adapter.rb:663:in `exec_query'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/abstract/database_statements.rb:63:in `exec_insert'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/abstract/database_statements.rb:90:in `insert'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/abstract/query_cache.rb:14:in `insert'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/relation.rb:66:in `insert'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/persistence.rb:363:in `create'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/timestamp.rb:57:in `create'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/callbacks.rb:268:in `block in     create'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activesupport-3.2.6/lib/active_support/callbacks.rb:403:in     `_run__772785567275930853__create__1186465801021498362__callbacks'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activesupport-3.2.6/lib/active_support/callbacks.rb:405:in     `__run_callback'
... 11 levels...
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/validations.rb:50:in `save'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/attribute_methods/dirty.rb:22:in     `save'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/transactions.rb:241:in `block (2     levels) in save'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/transactions.rb:295:in `block in     with_transaction_returning_status'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.    6/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/transactions.rb:208:in     `transaction'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/transactions.rb:293:in     `with_transaction_returning_status'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/transactions.rb:241:in `block in     save'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/transactions.rb:252:in     `rollback_active_record_state!'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/activerecord-3.2.6/lib/active_record/transactions.rb:240:in `save'
  from (irb):33
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/railties-3.2.6/lib/rails/commands/console.rb:47:in `start'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/railties-3.2.6/lib/rails/commands/console.rb:8:in `start'
  from /Users/brandon/.rvm/gems/ruby-1.9.3-p194@myapp/gems/railties-3.2.6/lib/rails/commands.rb:41:in `<top (required)>'
  from script/rails:6:in `require'
  from script/rails:6:in `<main>'

ACTUALIZACIÓN 1 Algún código de modelo según lo solicitado.

cosas macro

attr_accessible :weights

serialize :correlation_matrix
serialize :weights

has_and_belongs_to_many :securities, :uniq => true
has_and_belongs_to_many :efficient_frontiers

before_validation :format_weights_tickers, :add_securities, :validate_weights, :set_weights_in_hstore, :build_correlation_matrix, :set_mean_return, :set_standard_deviation

validates_presence_of :mean_return, :std_dev, :securities, :correlation_matrix, :weights
validates_numericality_of :mean_return, :std_dev

validate :uniqueness_of_weights 

before_destroy :check_for_dependent

scope :by_std_dev, :order => 'std_dev ASC'

Cualquier cosa y todo lo que pueda encontrar para hacer con la columna HStore.todo lo que realmente uso HStore es para una búsqueda en tickers específicos. Esto solía funcionar ... No sé qué cambió. Podría haber actualizado Postgres (estaba jugando con Homebrew) o potencialmente algo cambiado con rieles. Intenté volver a 3.2.3 pero obtuve el mismo error.

def self.find_by_hstore(search_key, search_value)  
  where("data @> (:key => :value)", :key => search_key.to_s, :value => search_value.to_s)
end  

def set_weights_in_hstore
  self.data = {} if self.data.nil?
  weights.each_pair {|ticker, weight| self.data[ticker.to_s] = weight}
end

Puedo publicar la totalidad del modelo si esto es demasiado inconexo. ¡Házmelo saber!

ACTUALIZACIÓN # 2 - Estoy recibiendo errores similares en otros lugares también ...

Después de un simple registro de usuario ...

SQL (10.9ms)  INSERT INTO "users" ("admin", "confirmation_sent_at", "confirmation_token", "confirmed_at", "created_at", "current_sign_in_at", "current_sign_in_ip", "data", "email", "encrypted_password", "last_email_at", "last_sign_in_at", "last_sign_in_ip", "name", "plan", "remember_created_at", "reset_password_sent_at", "reset_password_token", "selected_portfolio_id", "sign_in_count", "unconfirmed_email", "updated_at", "verified") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23) RETURNING "id"  [["admin", false], ["confirmation_sent_at", Sat, 16 Jun 2012 20:37:07 MDT -06:00], ["confirmation_token", "7Xu15pMrV9zTNmofv8bD"], ["confirmed_at", nil], ["created_at", Sat, 16 Jun 2012 20:37:07 MDT -06:00], ["current_sign_in_at", nil], ["current_sign_in_ip", nil], ["data", {"min_rebalance_spacing"=>90 days, "max_contact_frequency"=>7 days, "allowable_drift"=>5}], ["email", "[email protected]"], ["encrypted_password", "$2aCualquier cosa y todo lo que pueda encontrar para hacer con la columna HStore.HNUmlYmcVXbBsyZRFCAB7e8c5mf6S9UOdWr/ZCz10y5Sg4gOh8Zvq"], ["last_email_at", Sat, 16 Jun 2012 20:37:07 MDT -06:00], ["last_sign_in_at", nil], ["last_sign_in_ip", nil], ["name", "Joe Blow"], ["plan", "basic"], ["remember_created_at", nil], ["reset_password_sent_at", nil], ["reset_password_token", nil], ["selected_portfolio_id", nil], ["sign_in_count", 0], ["unconfirmed_email", nil], ["updated_at", Sat, 16 Jun 2012 20:37:07 MDT -06:00], ["verified", false]]

20:37:07 log.1          | [ef4a7d55fb30e8fb82ac6c860e674bfc] [127.0.0.1] PG::Error: ERROR:  Syntax error near 'm' at position 5

20:37:07 log.1          | : INSERT INTO "users" ("admin", "confirmation_sent_at", "confirmation_token", "confirmed_at", "created_at", "current_sign_in_at", "current_sign_in_ip", "data", "email", "encrypted_password", "last_email_at", "last_sign_in_at", "last_sign_in_ip", "name", "plan", "remember_created_at", "reset_password_sent_at", "reset_password_token", "selected_portfolio_id", "sign_in_count", "unconfirmed_email", "updated_at", "verified") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23) RETURNING "id"

UDPATE 3

Parece que hay algo raro en mi base de datos / tabla de usuarios. Recibo el siguiente error durante la carga del entorno en una migración:

rake aborted!
PG::Error: ERROR:  relation "users" does not exist
LINE 4:              WHERE a.attrelid = '"users"'::regclass
                                        ^
:             SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc,         a.attnotnull
              FROM pg_attribute a LEFT JOIN pg_attrdef d
                ON a.attrelid = d.adrelid AND a.attnum = d.adnum
             WHERE a.attrelid = '"users"'::regclass
               AND a.attnum > 0 AND NOT a.attisdropped
             ORDER BY a.attnum