Module: RailsSqlViews::ConnectionAdapters::SQLiteAdapter

Defined in:
lib/rails_sql_views/connection_adapters/sqlite_adapter.rb

Instance Method Summary collapse

Instance Method Details

#base_tables(name = nil) ⇒ Object Also known as: nonview_tables 



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# File 'lib/rails_sql_views/connection_adapters/sqlite_adapter.rb', line 24

def base_tables(name = nil)
  sql = <<-SQL
    SELECT name
    FROM sqlite_master
    WHERE (type = 'table') AND NOT name = 'sqlite_sequence'
  SQL

  execute(sql, name).map do |row|
    row[0]
  end        
end

#supports_drop_table_cascade? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails_sql_views/connection_adapters/sqlite_adapter.rb', line 8

def supports_drop_table_cascade?
  return false 
end

#supports_view_columns_definition? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails_sql_views/connection_adapters/sqlite_adapter.rb', line 60

def supports_view_columns_definition?
  false
end

#supports_views? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails_sql_views/connection_adapters/sqlite_adapter.rb', line 4

def supports_views?
  true
end

#tables(name = nil) ⇒ Object

:nodoc:



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# File 'lib/rails_sql_views/connection_adapters/sqlite_adapter.rb', line 12

def tables(name = nil) #:nodoc:
  sql = <<-SQL
    SELECT name
    FROM sqlite_master
    WHERE (type = 'table' OR type = 'view') AND NOT name = 'sqlite_sequence'
  SQL

  execute(sql, name).map do |row|
    row[0]
  end
end

#view_select_statement(view, name = nil) ⇒ Object

Get the view select statement for the specified table.



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# File 'lib/rails_sql_views/connection_adapters/sqlite_adapter.rb', line 50

def view_select_statement(view, name = nil)
  sql = <<-SQL
    SELECT sql
    FROM sqlite_master
    WHERE name = '#{view}' AND NOT name = 'sqlite_sequence'
  SQL
  
  (select_value(sql, name).gsub("CREATE VIEW #{view} AS ", "")) or raise "No view called #{view} found"
end

#views(name = nil) ⇒ Object 



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# File 'lib/rails_sql_views/connection_adapters/sqlite_adapter.rb', line 37

def views(name = nil)
  sql = <<-SQL
    SELECT name
    FROM sqlite_master
    WHERE type = 'view' AND NOT name = 'sqlite_sequence'
  SQL

  execute(sql, name).map do |row|
    row[0]
  end
end