+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+
import os
import sqlite3
+from meabook.constants import *
DATABASE_NAME = 'contacts.db'
-TOPLEVEL_FIELD = 'o'
-MIDDLELEVEL_FIELD = 'ou'
-LOWLEVEL_FIELD = 'cn'
-
SCHEMA = """
begin;
field_id text,
value text
);
+ create index i_data on data (id);
create table fields(
id integer primary key,
name text
);
+ create index i_fields on fields (id);
create table relation(
data_id integer,
struct_id integer
);
+ create index i_relation_data on relation(data_id);
create table struct(
id integer primary key,
name text,
parent integer
);
-
- commit;
-
- create index i_fields on fields (id);
- create index i_data on data (id);
- create index i_struct on struct(parent);
- create index i_relation on relation(data_id);
-
+ create index i_struct_id on struct(parent);
commit;
"""
if not os.path.exists(self._path):
self.new()
else:
- self.conn = sqlite3.connect(self._path)
+ self.connect()
+
+ def connect(self):
+ """Connects to database."""
+
+ self.conn = sqlite3.connect(self._path, isolation_level="EXCLUSIVE")
def new(self):
"""Creates new databse."""
- self.conn = sqlite3.connect(self._path)
+ self.connect()
self.conn.executescript(SCHEMA)
- self.conn.commit()
def close(self):
"""Closes connection with database."""
- self.conn.commit()
self.conn.close()
def save(self):
def get_fields(self):
"""Returns all fields from FIELDS table."""
- return [item[0] for item in self.conn.execute( \
- "SELECT name FROM fields").fetchall()]
+ return [item[0] for item in self.conn.execute("SELECT name FROM \
+ fields").fetchall() if item[0]!='image']
# operations with DATA table
def add_entry(self, entry):
for field, values in entry.items():
# update FIELDS table
- field_id = execute("SELECT id, name FROM fields WHERE name=?", \
+ field_id = execute("SELECT id FROM fields WHERE name=?", \
(field,)).fetchone()
if field_id is None:
execute("INSERT INTO fields values(NULL, ?)", (field,))
(_id, field_id, value))
# update STRUCT table
- name = entry[TOPLEVEL_FIELD][0]
+ name = entry[FIELD_TOPLEVEL][0]
parent_id = execute("SELECT id FROM struct WHERE name=? ", \
(name,)).fetchone()
- if parent_id is None: # update STRUCT table (TOPLEVEL_FIELD)
+ if parent_id is None: # update STRUCT table (FIELD_TOPLEVEL)
execute("INSERT INTO struct values(NULL,?,0)", (name,))
parent_id = execute("SELECT last_insert_rowid()").fetchone()[0]
else:
parent_id = parent_id[0]
- name = entry[MIDDLELEVEL_FIELD][0]
+ name = entry[FIELD_MIDDLELEVEL][0]
child_id = execute("SELECT id FROM struct WHERE name=? AND parent=?", \
(name, parent_id)).fetchone()
- if child_id is None: # update STRUCT table (MIDDLELEVEL_FIELD)
+ if child_id is None: # update STRUCT table (FIELD_MIDDLELEVEL)
execute("INSERT INTO struct values(NULL,?,?)", (name, parent_id))
child_id = execute("SELECT last_insert_rowid()").fetchone()[0]
else:
# update RELATION table
execute("INSERT INTO relation values(?,?)", (_id, child_id))
- def get_entry(self, value):
- """Gets full entry imformation from DATA table."""
-
- _id = self.conn.execute("SELECT id FROM data WHERE value=?", \
- (value,)).fetchone()[0]
- return dict([(key, value) for key, value in self.conn.execute("\
- SELECT field_id, value FROM data WHERE id=?", (_id,)).fetchall()])
-
def get_folders(self, parent=None):
"""
Returns list of all folders (items with folders and files)
"""Returns list of all files from DATA table."""
items_dict = {}
- fields_string = ','.join('%r' % (field,) for field in fields)
+ execute = self.conn.execute
+ fields = execute("SELECT id, name FROM fields WHERE name IN (%s)" \
+ % ','.join('%r' % (field,) for field in fields)).fetchall()
if parent == 0: # get all files
- sql_res = self.conn.execute("select data.id as id, fields.name, \
- data.value as name from data left join fields on data.field_id=\
- fields.id left join relation on data.id=relation.data_id where \
- fields.name in (%s)" % fields_string)
+ data_ids = [_id[0] for _id in execute("SELECT DISTINCT id FROM \
+ data").fetchall()]
else: # get files for selected parent
- sql_res = self.conn.execute("select data.id as id, fields.name, \
- data.value as name from data left join fields on data.field_id=\
- fields.id left join relation on data.id=relation.data_id where \
- fields.name in (%s) and relation.struct_id=?" % fields_string, \
- (parent,))
- if sql_res is None:
- return {}
- for _id, fname, fvalue in sql_res.fetchall():
- if not items_dict.has_key(_id):
- items_dict[_id] = {}
- items_dict[_id][fname] = fvalue
+ data_ids = [_id[0] for _id in execute("SELECT data_id FROM \
+ relation WHERE struct_id=?", (parent,)).fetchall()]
+ for data_id in data_ids:
+ items_dict[data_id] = {}
+ for field_id, field_name in fields:
+ field_value = execute("SELECT value FROM data WHERE id=? \
+ AND field_id=?", (data_id, field_id)).fetchone()[0]
+ items_dict[data_id][field_name] = field_value
return items_dict
- def get_entry_by_id(self, _id):
+ def get_files_by_pattern(self, pattern):
+ """Returns list of all files, matched pattern string."""
+
+ if not pattern:
+ return []
+ execute = self.conn.execute
+ field_id = execute("SELECT id FROM fields WHERE name=?", \
+ ('cn',)).fetchone()[0]
+ return execute("SELECT id, value FROM data WHERE value LIKE '%%%s%%' \
+ AND field_id=? LIMIT 50" % pattern, (field_id,)).fetchall()
+
+ def get_entry(self, _id):
"""Returns full entry by it id."""
- sql_res = self.conn.execute("SELECT fields.name, data.value AS name \
- FROM data LEFT JOIN fields ON data.field_id=fields.id LEFT JOIN \
- relation ON data.id=relation.data_id WHERE data.id=?", (_id,))
- if sql_res is None:
- return {}
- else:
- return dict(sql_res.fetchall())
+ execute = self.conn.execute
+ entry_dict = {}
+ for field_id, value in execute("SELECT field_id, value FROM data WHERE \
+ id=?", (_id,)).fetchall():
+ field_name = execute("SELECT name FROM fields WHERE id=?", \
+ (field_id,)).fetchone()[0]
+ entry_dict[field_name] = value
+ return entry_dict
projects / meabook / blobdiff