method
table_exists?
v3.0.0 -
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- Class:
ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
table_exists?(name)public
No documentation available.
# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 604
def table_exists?(name)
name = name.to_s
schema, table = name.split('.', 2)
unless table # A table was provided without a schema
table = schema
schema = nil
end
if name =~ /^"/ # Handle quoted table names
table = name
schema = nil
end
query("SELECT COUNT(*)\nFROM pg_tables\nWHERE tablename = '\#{table.gsub(/(^\"|\"$)/,'')}'\n\#{schema ? \"AND schemaname = '\#{schema}'\" : ''}\n").first[0].to_i > 0
end