Class: MicroSql::Table

Inherits:
Object
  • Object
show all
Defined in:
lib/micro_sql/table.rb

Overview

– A basic table ———————————————————-

Direct Known Subclasses

KeyValueTable

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(db, sql) ⇒ Table

Returns a new instance of Table.



6
7
8
9
10
11
12
13
14
15
16
17
18
 
# File 'lib/micro_sql/table.rb', line 6

def initialize(db, sql)
  @db = db

  if sql !~ /\s/
    # no space: sql must be the table_name
    @table_name = sql
    raise "No such table: '#{@table_name}'" unless exists?
  elsif sql =~ /\s*CREATE TABLE\s+([^\( ]+)/
    @table_name = $1
    raise ArgumentError, "Cannot determine table_name from SQL: #{sql}" unless table_name
    build(sql) unless exists?
  end
end

Instance Attribute Details

#db ⇒ Object (readonly)

Returns the value of attribute db.



4
5
6
 
# File 'lib/micro_sql/table.rb', line 4

def db
  @db
end

Instance Method Details

#insert(*values) ⇒ Object 



20
21
22
 
# File 'lib/micro_sql/table.rb', line 20

def insert(*values)
  db.insert table_name, *values
end

#primary_key ⇒ Object 



24
25
26
 
# File 'lib/micro_sql/table.rb', line 24

def primary_key
  @primary_key ||= db.primary_key(table_name)
end