2 # -*- coding: utf-8 -*-
7 from meabook.constants import *
9 DATABASE_NAME = 'contacts.db'
19 create index i_data on data (id);
22 id integer primary key,
25 create index i_fields on fields (id);
27 create table relation(
31 create index i_relation_data on relation(data_id);
34 id integer primary key,
38 create index i_struct_id on struct(parent);
45 def __init__(self, basedir):
46 self._path = os.path.join(basedir, DATABASE_NAME)
48 if not os.path.exists(self._path):
54 """Connects to database."""
56 self.conn = sqlite3.connect(self._path, isolation_level="EXCLUSIVE")
59 """Creates new databse."""
62 self.conn.executescript(SCHEMA)
65 """Closes connection with database."""
70 """Save all changes."""
75 """Clear all database tables."""
77 execute = self.conn.execute
78 execute("DELETE from data")
79 execute("DELETE from fields")
80 execute("DELETE from struct")
81 execute("DELETE from relation")
85 """Returns all fields from FIELDS table."""
87 return [item[0] for item in self.conn.execute("SELECT name FROM \
88 fields").fetchall() if item[0]!='image']
90 # operations with DATA table
91 def add_entry(self, entry):
92 """Adds new entry to database."""
94 execute = self.conn.execute
97 _id = execute("SELECT MAX(id) FROM data").fetchone()[0] \
102 for field, values in entry.items():
103 # update FIELDS table
104 field_id = execute("SELECT id FROM fields WHERE name=?", \
107 execute("INSERT INTO fields values(NULL, ?)", (field,))
108 field_id = execute("SELECT last_insert_rowid()").fetchone()[0]
110 field_id = field_id[0]
114 execute("INSERT INTO data values(?,?,?)", \
115 (_id, field_id, value))
117 # update STRUCT table
118 name = entry[FIELD_TOPLEVEL][0]
119 parent_id = execute("SELECT id FROM struct WHERE name=? ", \
121 if parent_id is None: # update STRUCT table (FIELD_TOPLEVEL)
122 execute("INSERT INTO struct values(NULL,?,0)", (name,))
123 parent_id = execute("SELECT last_insert_rowid()").fetchone()[0]
125 parent_id = parent_id[0]
127 name = entry[FIELD_MIDDLELEVEL][0]
128 child_id = execute("SELECT id FROM struct WHERE name=? AND parent=?", \
129 (name, parent_id)).fetchone()
130 if child_id is None: # update STRUCT table (FIELD_MIDDLELEVEL)
131 execute("INSERT INTO struct values(NULL,?,?)", (name, parent_id))
132 child_id = execute("SELECT last_insert_rowid()").fetchone()[0]
134 child_id = child_id[0]
136 # update RELATION table
137 execute("INSERT INTO relation values(?,?)", (_id, child_id))
139 def get_folders(self, parent=None):
141 Returns list of all folders (items with folders and files)
145 if parent is None: # return all folders on level2
146 return self.conn.execute("SELECT DISTINCT name, id FROM struct \
147 WHERE parent!=0 ORDER BY name ASC").fetchall()
149 return self.conn.execute("SELECT DISTINCT name, id FROM struct \
150 WHERE parent=? ORDER BY name ASC", (parent,)).fetchall()
152 def get_files(self, fields, parent=0):
153 """Finds all files with selected parent"""
156 execute = self.conn.execute
157 fields = dict(execute("SELECT id, name FROM fields WHERE name IN (%s)" \
158 % ','.join('%r' % (field,) for field in fields)).fetchall())
160 query = "SELECT id, field_id, value FROM data \
161 left join relation on relation.data_id=data.id \
162 where relation.struct_id=? and field_id in (%s)"
164 query = "SELECT id, field_id, value FROM data \
165 WHERE id IN (SELECT data_id FROM relation WHERE struct_id=?) \
166 AND field_id IN (%s)"
167 data = execute(query % ','.join('%r' % f for f in fields.keys()), \
168 (parent,)).fetchall()
169 for data_id, field_id, value in data:
170 if not items_dict.has_key(data_id):
171 items_dict[data_id] = {}
172 items_dict[data_id][fields[int(field_id)]] = value
175 def get_files_by_pattern(self, fields, key='cn', pattern='', \
176 search_from_start=False):
177 """Returns list of all files from DATA table."""
180 if key not in fields:
181 fields.append(str(key))
182 execute = self.conn.execute
183 fields = dict(execute("SELECT id, name FROM fields WHERE name IN (%s)" \
184 % ','.join('%r' % (field,) for field in fields)).fetchall())
186 for k, val in fields.items():
190 if search_from_start:
191 s = '%s%%' % pattern.capitalize()
193 s = '%%%s%%' % pattern
194 data = execute("SELECT id, field_id, value FROM data WHERE id IN \
195 (SELECT id FROM data WHERE value LIKE '%s' AND field_id=? LIMIT \
196 50) AND field_id in (%s)" % (s, ','.join('%r' % f for f in \
197 fields.keys())), (key_id,)).fetchall()
198 for data_id, field_id, value in data:
199 if not items_dict.has_key(data_id):
200 items_dict[data_id] = {}
201 items_dict[data_id][fields[int(field_id)]] = value
204 def get_entry(self, _id):
205 """Returns full entry by it id."""
207 execute = self.conn.execute
209 entry_dict = dict(execute("SELECT fields.name, value FROM data \
210 LEFT JOIN fields ON fields.id=data.field_id \
211 WHERE data.id=?", (_id,)).fetchall())
212 sql_res = execute('SELECT photo FROM photo WHERE data_id=?', \
214 if sql_res is not None:
215 entry_dict['image'] = sql_res[0]
220 if __name__ == "__main__":