#!/usr/bin/env python
import os, sys
import pprint
def import_module(name, path):
#import imp
#try:
# mod_fp, mod_path, mod_desc = imp.find_module(name, [path])
# mod = getattr( imp.load_module(name, mod_fp, mod_path, mod_desc), name )
#except ImportError as exc:
# mod = None
# sys.stderr.write("Error: failed to import module ({})".format(exc))
#finally:
# if mod_fp: mod_fp.close()
#return mod
import importlib.util, sys
spec = importlib.util.spec_from_file_location(name, path+name+'.py')
mod = importlib.util.module_from_spec(spec)
sys.modules[name] = mod
spec.loader.exec_module(mod)
return getattr(mod, name)
# import the Dialect.py engine (as a) module, probably you will want to place this in another dir/package
Dialect = import_module('Dialect', os.path.join(os.path.dirname(__file__), '../../src/python/'))
if not Dialect:
print ('Could not load the Dialect Module')
sys.exit(1)
else:
pass
def echo(s = ''):
print (s)
echo('Dialect.VERSION = ' + Dialect.VERSION)
echo( )
dialect = Dialect('sqlite')
query = dialect.clear().Select().Order(dialect.sql_function('random')).From('table AS main').sql( )
quoted_id = dialect.quote_name('trick"ier')
quoted_lit = dialect.quote('trick\'\\ier')
query2 = dialect.clear().Select(quoted_id+' AS trickier, "trick\'y" AS tricky').From('table').sql()
query3 = dialect.clear().Select().From('table').Where({'id':{'in':dialect.subquery().Select('id').From('anothertable').sql(),'type':'raw'}}).sql()
query4 = ''.join([
dialect.clear().Insert('table',['col1','col2']).sql(),
dialect.clear().Select('col1,col2').From('anothertable').Where({'id':1}).sql()
])
query5 = dialect.clear().Select('anothertable.col1,anothertable.col2,dynamictable.*').From(['anothertable','('+
dialect.subquery().Select(quoted_id).From('table').Where({'col4':{'like':'foo'}}).sql()+
') AS dynamictable']).Where({'id':1}).sql()
echo( 'SQL dialect = ' + dialect.type )
echo( )
echo( query )
echo( )
echo( quoted_id )
echo( )
echo( quoted_lit )
echo( )
echo( query2 )
echo( )
echo( query3 )
echo( )
echo( query4 )
echo( )
echo( query5 )
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