959 lines
29 KiB
Python
959 lines
29 KiB
Python
# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
|
|
# MIT License. See license.txt
|
|
|
|
# Database Module
|
|
# --------------------
|
|
|
|
from __future__ import unicode_literals
|
|
|
|
import re
|
|
import time
|
|
import frappe
|
|
import datetime
|
|
import frappe.defaults
|
|
import frappe.model.meta
|
|
|
|
from frappe import _
|
|
from time import time
|
|
from frappe.utils import now, getdate, cast_fieldtype
|
|
from frappe.utils.background_jobs import execute_job, get_queue
|
|
from frappe.model.utils.link_count import flush_local_link_count
|
|
from frappe.utils import cint
|
|
|
|
# imports - compatibility imports
|
|
from six import (
|
|
integer_types,
|
|
string_types,
|
|
text_type,
|
|
iteritems
|
|
)
|
|
|
|
class Database(object):
|
|
"""
|
|
Open a database connection with the given parmeters, if use_default is True, use the
|
|
login details from `conf.py`. This is called by the request handler and is accessible using
|
|
the `db` global variable. the `sql` method is also global to run queries
|
|
"""
|
|
VARCHAR_LEN = 140
|
|
MAX_COLUMN_LENGTH = 64
|
|
|
|
OPTIONAL_COLUMNS = ["_user_tags", "_comments", "_assign", "_liked_by"]
|
|
DEFAULT_SHORTCUTS = ['_Login', '__user', '_Full Name', 'Today', '__today', "now", "Now"]
|
|
STANDARD_VARCHAR_COLUMNS = ('name', 'owner', 'modified_by', 'parent', 'parentfield', 'parenttype')
|
|
DEFAULT_COLUMNS = ['name', 'creation', 'modified', 'modified_by', 'owner', 'docstatus', 'parent',
|
|
'parentfield', 'parenttype', 'idx']
|
|
|
|
class InvalidColumnName(frappe.ValidationError): pass
|
|
|
|
|
|
def __init__(self, host=None, user=None, password=None, ac_name=None, use_default=0):
|
|
self.setup_type_map()
|
|
self.host = host or frappe.conf.db_host or 'localhost'
|
|
self.user = user or frappe.conf.db_name
|
|
self.db_name = frappe.conf.db_name
|
|
self._conn = None
|
|
|
|
if ac_name:
|
|
self.user = ac_name or frappe.conf.db_name
|
|
|
|
if use_default:
|
|
self.user = frappe.conf.db_name
|
|
|
|
self.transaction_writes = 0
|
|
self.auto_commit_on_many_writes = 0
|
|
|
|
self.password = password or frappe.conf.db_password
|
|
self.value_cache = {}
|
|
|
|
def setup_type_map(self):
|
|
pass
|
|
|
|
def connect(self):
|
|
"""Connects to a database as set in `site_config.json`."""
|
|
self.cur_db_name = self.user
|
|
self._conn = self.get_connection()
|
|
self._cursor = self._conn.cursor()
|
|
frappe.local.rollback_observers = []
|
|
|
|
def use(self, db_name):
|
|
"""`USE` db_name."""
|
|
self._conn.select_db(db_name)
|
|
|
|
def get_connection(self):
|
|
pass
|
|
|
|
def get_database_size(self):
|
|
pass
|
|
|
|
def sql(self, query, values=(), as_dict = 0, as_list = 0, formatted = 0,
|
|
debug=0, ignore_ddl=0, as_utf8=0, auto_commit=0, update=None, explain=False):
|
|
"""Execute a SQL query and fetch all rows.
|
|
|
|
:param query: SQL query.
|
|
:param values: List / dict of values to be escaped and substituted in the query.
|
|
:param as_dict: Return as a dictionary.
|
|
:param as_list: Always return as a list.
|
|
:param formatted: Format values like date etc.
|
|
:param debug: Print query and `EXPLAIN` in debug log.
|
|
:param ignore_ddl: Catch exception if table, column missing.
|
|
:param as_utf8: Encode values as UTF 8.
|
|
:param auto_commit: Commit after executing the query.
|
|
:param update: Update this dict to all rows (if returned `as_dict`).
|
|
|
|
Examples:
|
|
|
|
# return customer names as dicts
|
|
frappe.db.sql("select name from tabCustomer", as_dict=True)
|
|
|
|
# return names beginning with a
|
|
frappe.db.sql("select name from tabCustomer where name like %s", "a%")
|
|
|
|
# values as dict
|
|
frappe.db.sql("select name from tabCustomer where name like %(name)s and owner=%(owner)s",
|
|
{"name": "a%", "owner":"test@example.com"})
|
|
|
|
"""
|
|
if re.search(r'ifnull\(', query, flags=re.IGNORECASE):
|
|
# replaces ifnull in query with coalesce
|
|
query = re.sub(r'ifnull\(', 'coalesce(', query, flags=re.IGNORECASE)
|
|
|
|
if not self._conn:
|
|
self.connect()
|
|
|
|
# in transaction validations
|
|
self.check_transaction_status(query)
|
|
|
|
# autocommit
|
|
if auto_commit: self.commit()
|
|
|
|
# execute
|
|
try:
|
|
if debug:
|
|
time_start = time()
|
|
|
|
if values!=():
|
|
if isinstance(values, dict):
|
|
values = dict(values)
|
|
|
|
# MySQL-python==1.2.5 hack!
|
|
if not isinstance(values, (dict, tuple, list)):
|
|
values = (values,)
|
|
|
|
if debug and query.strip().lower().startswith('select'):
|
|
try:
|
|
if explain:
|
|
self.explain_query(query, values)
|
|
frappe.errprint(query % values)
|
|
except TypeError:
|
|
frappe.errprint([query, values])
|
|
if (frappe.conf.get("logging") or False)==2:
|
|
frappe.log("<<<< query")
|
|
frappe.log(query)
|
|
frappe.log("with values:")
|
|
frappe.log(values)
|
|
frappe.log(">>>>")
|
|
self._cursor.execute(query, values)
|
|
|
|
if frappe.flags.in_migrate:
|
|
self.log_touched_tables(query, values)
|
|
|
|
else:
|
|
if debug:
|
|
if explain:
|
|
self.explain_query(query)
|
|
frappe.errprint(query)
|
|
if (frappe.conf.get("logging") or False)==2:
|
|
frappe.log("<<<< query")
|
|
frappe.log(query)
|
|
frappe.log(">>>>")
|
|
|
|
self._cursor.execute(query)
|
|
|
|
if frappe.flags.in_migrate:
|
|
self.log_touched_tables(query)
|
|
|
|
if debug:
|
|
time_end = time()
|
|
frappe.errprint(("Execution time: {0} sec").format(round(time_end - time_start, 2)))
|
|
|
|
except Exception as e:
|
|
if(frappe.conf.db_type == 'postgres'):
|
|
self.rollback()
|
|
|
|
if ignore_ddl and (self.is_missing_column(e) or self.is_missing_table(e) or self.cant_drop_field_or_key(e)):
|
|
pass
|
|
else:
|
|
raise
|
|
|
|
if auto_commit: self.commit()
|
|
|
|
if not self._cursor.description:
|
|
return ()
|
|
|
|
# scrub output if required
|
|
if as_dict:
|
|
ret = self.fetch_as_dict(formatted, as_utf8)
|
|
if update:
|
|
for r in ret:
|
|
r.update(update)
|
|
return ret
|
|
elif as_list:
|
|
return self.convert_to_lists(self._cursor.fetchall(), formatted, as_utf8)
|
|
elif as_utf8:
|
|
return self.convert_to_lists(self._cursor.fetchall(), formatted, as_utf8)
|
|
else:
|
|
return self._cursor.fetchall()
|
|
|
|
def explain_query(self, query, values=None):
|
|
"""Print `EXPLAIN` in error log."""
|
|
try:
|
|
frappe.errprint("--- query explain ---")
|
|
if values is None:
|
|
self._cursor.execute("explain " + query)
|
|
else:
|
|
self._cursor.execute("explain " + query, values)
|
|
import json
|
|
frappe.errprint(json.dumps(self.fetch_as_dict(), indent=1))
|
|
frappe.errprint("--- query explain end ---")
|
|
except Exception:
|
|
frappe.errprint("error in query explain")
|
|
|
|
def sql_list(self, query, values=(), debug=False):
|
|
"""Return data as list of single elements (first column).
|
|
|
|
Example:
|
|
|
|
# doctypes = ["DocType", "DocField", "User", ...]
|
|
doctypes = frappe.db.sql_list("select name from DocType")
|
|
"""
|
|
return [r[0] for r in self.sql(query, values, debug=debug)]
|
|
|
|
def sql_ddl(self, query, values=(), debug=False):
|
|
"""Commit and execute a query. DDL (Data Definition Language) queries that alter schema
|
|
autocommit in MariaDB."""
|
|
self.commit()
|
|
self.sql(query, debug=debug)
|
|
|
|
def check_transaction_status(self, query):
|
|
"""Raises exception if more than 20,000 `INSERT`, `UPDATE` queries are
|
|
executed in one transaction. This is to ensure that writes are always flushed otherwise this
|
|
could cause the system to hang."""
|
|
if self.transaction_writes and \
|
|
query and query.strip().split()[0].lower() in ['start', 'alter', 'drop', 'create', "begin", "truncate"]:
|
|
raise Exception('This statement can cause implicit commit')
|
|
|
|
if query and query.strip().lower() in ('commit', 'rollback'):
|
|
self.transaction_writes = 0
|
|
|
|
if query[:6].lower() in ('update', 'insert', 'delete'):
|
|
self.transaction_writes += 1
|
|
if self.transaction_writes > 200000:
|
|
if self.auto_commit_on_many_writes:
|
|
self.commit()
|
|
else:
|
|
frappe.throw(_("Too many writes in one request. Please send smaller requests"), frappe.ValidationError)
|
|
|
|
def fetch_as_dict(self, formatted=0, as_utf8=0):
|
|
"""Internal. Converts results to dict."""
|
|
result = self._cursor.fetchall()
|
|
ret = []
|
|
if result:
|
|
keys = [column[0] for column in self._cursor.description]
|
|
|
|
for r in result:
|
|
values = []
|
|
for value in r:
|
|
if as_utf8 and isinstance(value, text_type):
|
|
value = value.encode('utf-8')
|
|
values.append(value)
|
|
|
|
ret.append(frappe._dict(zip(keys, values)))
|
|
return ret
|
|
|
|
@staticmethod
|
|
def needs_formatting(result, formatted):
|
|
"""Returns true if the first row in the result has a Date, Datetime, Long Int."""
|
|
if result and result[0]:
|
|
for v in result[0]:
|
|
if isinstance(v, (datetime.date, datetime.timedelta, datetime.datetime, integer_types)):
|
|
return True
|
|
if formatted and isinstance(v, (int, float)):
|
|
return True
|
|
|
|
return False
|
|
|
|
def get_description(self):
|
|
"""Returns result metadata."""
|
|
return self._cursor.description
|
|
|
|
@staticmethod
|
|
def convert_to_lists(res, formatted=0, as_utf8=0):
|
|
"""Convert tuple output to lists (internal)."""
|
|
nres = []
|
|
for r in res:
|
|
nr = []
|
|
for val in r:
|
|
if as_utf8 and isinstance(val, text_type):
|
|
val = val.encode('utf-8')
|
|
nr.append(val)
|
|
nres.append(nr)
|
|
return nres
|
|
|
|
@staticmethod
|
|
def build_conditions(filters):
|
|
"""Convert filters sent as dict, lists to SQL conditions. filter's key
|
|
is passed by map function, build conditions like:
|
|
|
|
* ifnull(`fieldname`, default_value) = %(fieldname)s
|
|
* `fieldname` [=, !=, >, >=, <, <=] %(fieldname)s
|
|
"""
|
|
conditions = []
|
|
values = {}
|
|
def _build_condition(key):
|
|
"""
|
|
filter's key is passed by map function
|
|
build conditions like:
|
|
* ifnull(`fieldname`, default_value) = %(fieldname)s
|
|
* `fieldname` [=, !=, >, >=, <, <=] %(fieldname)s
|
|
"""
|
|
_operator = "="
|
|
_rhs = " %(" + key + ")s"
|
|
value = filters.get(key)
|
|
values[key] = value
|
|
if isinstance(value, (list, tuple)):
|
|
# value is a tuble like ("!=", 0)
|
|
_operator = value[0]
|
|
values[key] = value[1]
|
|
if isinstance(value[1], (tuple, list)):
|
|
# value is a list in tuple ("in", ("A", "B"))
|
|
inner_list = []
|
|
for i, v in enumerate(value[1]):
|
|
inner_key = "{0}_{1}".format(key, i)
|
|
values[inner_key] = v
|
|
inner_list.append("%({0})s".format(inner_key))
|
|
|
|
_rhs = " ({0})".format(", ".join(inner_list))
|
|
del values[key]
|
|
|
|
if _operator not in ["=", "!=", ">", ">=", "<", "<=", "like", "in", "not in", "not like"]:
|
|
_operator = "="
|
|
|
|
if "[" in key:
|
|
split_key = key.split("[")
|
|
condition = "coalesce(`" + split_key[0] + "`, " + split_key[1][:-1] + ") " \
|
|
+ _operator + _rhs
|
|
else:
|
|
condition = "`" + key + "` " + _operator + _rhs
|
|
|
|
conditions.append(condition)
|
|
|
|
if isinstance(filters, int):
|
|
# docname is a number, convert to string
|
|
filters = str(filters)
|
|
|
|
if isinstance(filters, string_types):
|
|
filters = { "name": filters }
|
|
|
|
for f in filters:
|
|
_build_condition(f)
|
|
|
|
return " and ".join(conditions), values
|
|
|
|
def get(self, doctype, filters=None, as_dict=True, cache=False):
|
|
"""Returns `get_value` with fieldname='*'"""
|
|
return self.get_value(doctype, filters, "*", as_dict=as_dict, cache=cache)
|
|
|
|
def get_value(self, doctype, filters=None, fieldname="name", ignore=None, as_dict=False,
|
|
debug=False, order_by=None, cache=False):
|
|
"""Returns a document property or list of properties.
|
|
|
|
:param doctype: DocType name.
|
|
:param filters: Filters like `{"x":"y"}` or name of the document. `None` if Single DocType.
|
|
:param fieldname: Column name.
|
|
:param ignore: Don't raise exception if table, column is missing.
|
|
:param as_dict: Return values as dict.
|
|
:param debug: Print query in error log.
|
|
:param order_by: Column to order by
|
|
|
|
Example:
|
|
|
|
# return first customer starting with a
|
|
frappe.db.get_value("Customer", {"name": ("like a%")})
|
|
|
|
# return last login of **User** `test@example.com`
|
|
frappe.db.get_value("User", "test@example.com", "last_login")
|
|
|
|
last_login, last_ip = frappe.db.get_value("User", "test@example.com",
|
|
["last_login", "last_ip"])
|
|
|
|
# returns default date_format
|
|
frappe.db.get_value("System Settings", None, "date_format")
|
|
"""
|
|
|
|
ret = self.get_values(doctype, filters, fieldname, ignore, as_dict, debug,
|
|
order_by, cache=cache)
|
|
|
|
return ((len(ret[0]) > 1 or as_dict) and ret[0] or ret[0][0]) if ret else None
|
|
|
|
def get_values(self, doctype, filters=None, fieldname="name", ignore=None, as_dict=False,
|
|
debug=False, order_by=None, update=None, cache=False):
|
|
"""Returns multiple document properties.
|
|
|
|
:param doctype: DocType name.
|
|
:param filters: Filters like `{"x":"y"}` or name of the document.
|
|
:param fieldname: Column name.
|
|
:param ignore: Don't raise exception if table, column is missing.
|
|
:param as_dict: Return values as dict.
|
|
:param debug: Print query in error log.
|
|
:param order_by: Column to order by
|
|
|
|
Example:
|
|
|
|
# return first customer starting with a
|
|
customers = frappe.db.get_values("Customer", {"name": ("like a%")})
|
|
|
|
# return last login of **User** `test@example.com`
|
|
user = frappe.db.get_values("User", "test@example.com", "*")[0]
|
|
"""
|
|
out = None
|
|
if cache and isinstance(filters, string_types) and \
|
|
(doctype, filters, fieldname) in self.value_cache:
|
|
return self.value_cache[(doctype, filters, fieldname)]
|
|
|
|
if not order_by: order_by = 'modified desc'
|
|
|
|
if isinstance(filters, list):
|
|
out = self._get_value_for_many_names(doctype, filters, fieldname, debug=debug)
|
|
|
|
else:
|
|
fields = fieldname
|
|
if fieldname!="*":
|
|
if isinstance(fieldname, string_types):
|
|
fields = [fieldname]
|
|
else:
|
|
fields = fieldname
|
|
|
|
if (filters is not None) and (filters!=doctype or doctype=="DocType"):
|
|
try:
|
|
out = self._get_values_from_table(fields, filters, doctype, as_dict, debug, order_by, update)
|
|
except Exception as e:
|
|
if ignore and (frappe.db.is_missing_column(e) or frappe.db.is_table_missing(e)):
|
|
# table or column not found, return None
|
|
out = None
|
|
elif (not ignore) and frappe.db.is_table_missing(e):
|
|
# table not found, look in singles
|
|
out = self.get_values_from_single(fields, filters, doctype, as_dict, debug, update)
|
|
else:
|
|
raise
|
|
else:
|
|
out = self.get_values_from_single(fields, filters, doctype, as_dict, debug, update)
|
|
|
|
if cache and isinstance(filters, string_types):
|
|
self.value_cache[(doctype, filters, fieldname)] = out
|
|
|
|
return out
|
|
|
|
def get_values_from_single(self, fields, filters, doctype, as_dict=False, debug=False, update=None):
|
|
"""Get values from `tabSingles` (Single DocTypes) (internal).
|
|
|
|
:param fields: List of fields,
|
|
:param filters: Filters (dict).
|
|
:param doctype: DocType name.
|
|
"""
|
|
# TODO
|
|
# if not frappe.model.meta.is_single(doctype):
|
|
# raise frappe.DoesNotExistError("DocType", doctype)
|
|
|
|
if fields=="*" or isinstance(filters, dict):
|
|
# check if single doc matches with filters
|
|
values = self.get_singles_dict(doctype)
|
|
if isinstance(filters, dict):
|
|
for key, value in filters.items():
|
|
if values.get(key) != value:
|
|
return []
|
|
|
|
if as_dict:
|
|
return values and [values] or []
|
|
|
|
if isinstance(fields, list):
|
|
return [map(values.get, fields)]
|
|
|
|
else:
|
|
r = self.sql("""select field, value
|
|
from `tabSingles` where field in (%s) and doctype=%s"""
|
|
% (', '.join(['%s'] * len(fields)), '%s'),
|
|
tuple(fields) + (doctype,), as_dict=False, debug=debug)
|
|
|
|
if as_dict:
|
|
if r:
|
|
r = frappe._dict(r)
|
|
if update:
|
|
r.update(update)
|
|
return [r]
|
|
else:
|
|
return []
|
|
else:
|
|
return r and [[i[1] for i in r]] or []
|
|
|
|
def get_singles_dict(self, doctype, debug = False):
|
|
"""Get Single DocType as dict.
|
|
|
|
:param doctype: DocType of the single object whose value is requested
|
|
|
|
Example:
|
|
|
|
# Get coulmn and value of the single doctype Accounts Settings
|
|
account_settings = frappe.db.get_singles_dict("Accounts Settings")
|
|
"""
|
|
result = self.sql("""
|
|
SELECT field, value
|
|
FROM `tabSingles`
|
|
WHERE doctype = %s
|
|
""", doctype)
|
|
# result = _cast_result(doctype, result)
|
|
|
|
dict_ = frappe._dict(result)
|
|
|
|
return dict_
|
|
|
|
@staticmethod
|
|
def get_all(*args, **kwargs):
|
|
return frappe.get_all(*args, **kwargs)
|
|
|
|
@staticmethod
|
|
def get_list(*args, **kwargs):
|
|
return frappe.get_list(*args, **kwargs)
|
|
|
|
def get_single_value(self, doctype, fieldname, cache=False):
|
|
"""Get property of Single DocType. Cache locally by default
|
|
|
|
:param doctype: DocType of the single object whose value is requested
|
|
:param fieldname: `fieldname` of the property whose value is requested
|
|
|
|
Example:
|
|
|
|
# Get the default value of the company from the Global Defaults doctype.
|
|
company = frappe.db.get_single_value('Global Defaults', 'default_company')
|
|
"""
|
|
|
|
if not doctype in self.value_cache:
|
|
self.value_cache = self.value_cache[doctype] = {}
|
|
|
|
if fieldname in self.value_cache[doctype]:
|
|
return self.value_cache[doctype][fieldname]
|
|
|
|
val = self.sql("""select `value` from
|
|
`tabSingles` where `doctype`=%s and `field`=%s""", (doctype, fieldname))
|
|
val = val[0][0] if val else None
|
|
|
|
df = frappe.get_meta(doctype).get_field(fieldname)
|
|
if df.fieldtype in frappe.model.numeric_fieldtypes:
|
|
val = cint(val)
|
|
|
|
self.value_cache[doctype][fieldname] = val
|
|
|
|
return val
|
|
|
|
def get_singles_value(self, *args, **kwargs):
|
|
"""Alias for get_single_value"""
|
|
return self.get_single_value(*args, **kwargs)
|
|
|
|
def _get_values_from_table(self, fields, filters, doctype, as_dict, debug, order_by=None, update=None):
|
|
fl = []
|
|
if isinstance(fields, (list, tuple)):
|
|
for f in fields:
|
|
if "(" in f or " as " in f: # function
|
|
fl.append(f)
|
|
else:
|
|
fl.append("`" + f + "`")
|
|
fl = ", ".join(fl)
|
|
else:
|
|
fl = fields
|
|
if fields=="*":
|
|
as_dict = True
|
|
|
|
conditions, values = self.build_conditions(filters)
|
|
|
|
order_by = ("order by " + order_by) if order_by else ""
|
|
|
|
r = self.sql("select {0} from `tab{1}` {2} {3} {4}"
|
|
.format(fl, doctype, "where" if conditions else "", conditions, order_by), values,
|
|
as_dict=as_dict, debug=debug, update=update)
|
|
|
|
return r
|
|
|
|
def _get_value_for_many_names(self, doctype, names, field, debug=False):
|
|
names = list(filter(None, names))
|
|
|
|
if names:
|
|
return self.get_all(doctype,
|
|
fields=['name', field],
|
|
filters=[['name', 'in', names]],
|
|
debug=debug, as_list=1)
|
|
else:
|
|
return {}
|
|
|
|
def update(self, *args, **kwargs):
|
|
"""Update multiple values. Alias for `set_value`."""
|
|
return self.set_value(*args, **kwargs)
|
|
|
|
def set_value(self, dt, dn, field, val, modified=None, modified_by=None,
|
|
update_modified=True, debug=False):
|
|
"""Set a single value in the database, do not call the ORM triggers
|
|
but update the modified timestamp (unless specified not to).
|
|
|
|
**Warning:** this function will not call Document events and should be avoided in normal cases.
|
|
|
|
:param dt: DocType name.
|
|
:param dn: Document name.
|
|
:param field: Property / field name or dictionary of values to be updated
|
|
:param value: Value to be updated.
|
|
:param modified: Use this as the `modified` timestamp.
|
|
:param modified_by: Set this user as `modified_by`.
|
|
:param update_modified: default True. Set as false, if you don't want to update the timestamp.
|
|
:param debug: Print the query in the developer / js console.
|
|
"""
|
|
if not modified:
|
|
modified = now()
|
|
if not modified_by:
|
|
modified_by = frappe.session.user
|
|
|
|
to_update = {}
|
|
if update_modified:
|
|
to_update = {"modified": modified, "modified_by": modified_by}
|
|
|
|
if isinstance(field, dict):
|
|
to_update.update(field)
|
|
else:
|
|
to_update.update({field: val})
|
|
|
|
if dn and dt!=dn:
|
|
# with table
|
|
conditions, values = self.build_conditions(dn)
|
|
|
|
values.update(to_update)
|
|
|
|
set_values = []
|
|
for key in to_update:
|
|
set_values.append('`{0}`=%({0})s'.format(key))
|
|
|
|
self.sql("""update `tab{0}`
|
|
set {1} where {2}""".format(dt, ', '.join(set_values), conditions),
|
|
values, debug=debug)
|
|
|
|
else:
|
|
# for singles
|
|
keys = list(to_update)
|
|
self.sql('''
|
|
delete from `tabSingles`
|
|
where field in ({0}) and
|
|
doctype=%s'''.format(', '.join(['%s']*len(keys))),
|
|
list(keys) + [dt], debug=debug)
|
|
for key, value in iteritems(to_update):
|
|
self.sql('''insert into `tabSingles` (doctype, field, value) values (%s, %s, %s)''',
|
|
(dt, key, value), debug=debug)
|
|
|
|
if dt in self.value_cache:
|
|
del self.value_cache[dt]
|
|
|
|
frappe.clear_document_cache(dt, dn)
|
|
|
|
@staticmethod
|
|
def set(doc, field, val):
|
|
"""Set value in document. **Avoid**"""
|
|
doc.db_set(field, val)
|
|
|
|
def touch(self, doctype, docname):
|
|
"""Update the modified timestamp of this document."""
|
|
modified = now()
|
|
self.sql("""update `tab{doctype}` set `modified`=%s
|
|
where name=%s""".format(doctype=doctype), (modified, docname))
|
|
return modified
|
|
|
|
@staticmethod
|
|
def set_temp(value):
|
|
"""Set a temperory value and return a key."""
|
|
key = frappe.generate_hash()
|
|
frappe.cache().hset("temp", key, value)
|
|
return key
|
|
|
|
@staticmethod
|
|
def get_temp(key):
|
|
"""Return the temperory value and delete it."""
|
|
return frappe.cache().hget("temp", key)
|
|
|
|
def set_global(self, key, val, user='__global'):
|
|
"""Save a global key value. Global values will be automatically set if they match fieldname."""
|
|
self.set_default(key, val, user)
|
|
|
|
def get_global(self, key, user='__global'):
|
|
"""Returns a global key value."""
|
|
return self.get_default(key, user)
|
|
|
|
def get_default(self, key, parent="__default"):
|
|
"""Returns default value as a list if multiple or single"""
|
|
d = self.get_defaults(key, parent)
|
|
return isinstance(d, list) and d[0] or d
|
|
|
|
@staticmethod
|
|
def set_default(key, val, parent="__default", parenttype=None):
|
|
"""Sets a global / user default value."""
|
|
frappe.defaults.set_default(key, val, parent, parenttype)
|
|
|
|
@staticmethod
|
|
def add_default(key, val, parent="__default", parenttype=None):
|
|
"""Append a default value for a key, there can be multiple default values for a particular key."""
|
|
frappe.defaults.add_default(key, val, parent, parenttype)
|
|
|
|
|
|
@staticmethod
|
|
def get_defaults(key=None, parent="__default"):
|
|
"""Get all defaults"""
|
|
if key:
|
|
defaults = frappe.defaults.get_defaults(parent)
|
|
d = defaults.get(key, None)
|
|
if(not d and key != frappe.scrub(key)):
|
|
d = defaults.get(frappe.scrub(key), None)
|
|
return d
|
|
else:
|
|
return frappe.defaults.get_defaults(parent)
|
|
|
|
def begin(self):
|
|
self.sql("START TRANSACTION")
|
|
|
|
def commit(self):
|
|
"""Commit current transaction. Calls SQL `COMMIT`."""
|
|
self.sql("commit")
|
|
frappe.local.rollback_observers = []
|
|
self.flush_realtime_log()
|
|
enqueue_jobs_after_commit()
|
|
flush_local_link_count()
|
|
|
|
@staticmethod
|
|
def flush_realtime_log():
|
|
for args in frappe.local.realtime_log:
|
|
frappe.realtime.emit_via_redis(*args)
|
|
|
|
frappe.local.realtime_log = []
|
|
|
|
def rollback(self):
|
|
"""`ROLLBACK` current transaction."""
|
|
self.sql("rollback")
|
|
self.begin()
|
|
for obj in frappe.local.rollback_observers:
|
|
if hasattr(obj, "on_rollback"):
|
|
obj.on_rollback()
|
|
frappe.local.rollback_observers = []
|
|
|
|
def field_exists(self, dt, fn):
|
|
"""Return true of field exists."""
|
|
return self.sql("select name from tabDocField where fieldname=%s and parent=%s", (dt, fn))
|
|
|
|
def table_exists(self, doctype):
|
|
"""Returns True if table for given doctype exists."""
|
|
return ("tab" + doctype) in self.get_tables()
|
|
|
|
def get_tables(self):
|
|
return [d[0] for d in self.sql("select table_name from information_schema.tables where table_schema not in ('pg_catalog', 'information_schema')")]
|
|
|
|
def a_row_exists(self, doctype):
|
|
"""Returns True if atleast one row exists."""
|
|
return self.sql("select name from `tab{doctype}` limit 1".format(doctype=doctype))
|
|
|
|
def exists(self, dt, dn=None, cache=False):
|
|
"""Returns true if document exists.
|
|
|
|
:param dt: DocType name.
|
|
:param dn: Document name or filter dict."""
|
|
if isinstance(dt, string_types):
|
|
if dt!="DocType" and dt==dn:
|
|
return True # single always exists (!)
|
|
try:
|
|
return self.get_value(dt, dn, "name", cache=cache)
|
|
except Exception:
|
|
return None
|
|
|
|
elif isinstance(dt, dict) and dt.get('doctype'):
|
|
try:
|
|
conditions = []
|
|
for d in dt:
|
|
if d == 'doctype': continue
|
|
conditions.append([d, '=', dt[d]])
|
|
return self.get_all(dt['doctype'], filters=conditions, as_list=1)
|
|
except Exception:
|
|
return None
|
|
|
|
def count(self, dt, filters=None, debug=False, cache=False):
|
|
"""Returns `COUNT(*)` for given DocType and filters."""
|
|
if cache and not filters:
|
|
cache_count = frappe.cache().get_value('doctype:count:{}'.format(dt))
|
|
if cache_count is not None:
|
|
return cache_count
|
|
if filters:
|
|
conditions, filters = self.build_conditions(filters)
|
|
count = self.sql("""select count(*)
|
|
from `tab%s` where %s""" % (dt, conditions), filters, debug=debug)[0][0]
|
|
return count
|
|
else:
|
|
count = self.sql("""select count(*)
|
|
from `tab%s`""" % (dt,))[0][0]
|
|
|
|
if cache:
|
|
frappe.cache().set_value('doctype:count:{}'.format(dt), count, expires_in_sec = 86400)
|
|
|
|
return count
|
|
|
|
@staticmethod
|
|
def format_date(date):
|
|
return getdate(date).strftime("%Y-%m-%d")
|
|
|
|
@staticmethod
|
|
def format_datetime(datetime):
|
|
if not datetime:
|
|
return '0001-01-01 00:00:00.000000'
|
|
|
|
if isinstance(datetime, frappe.string_types):
|
|
if ':' not in datetime:
|
|
datetime = datetime + ' 00:00:00.000000'
|
|
else:
|
|
datetime = datetime.strftime("%Y-%m-%d %H:%M:%S.%f")
|
|
|
|
return datetime
|
|
|
|
def get_creation_count(self, doctype, minutes):
|
|
"""Get count of records created in the last x minutes"""
|
|
from frappe.utils import now_datetime
|
|
from dateutil.relativedelta import relativedelta
|
|
|
|
return self.sql("""select count(name) from `tab{doctype}`
|
|
where creation >= %s""".format(doctype=doctype),
|
|
now_datetime() - relativedelta(minutes=minutes))[0][0]
|
|
|
|
def get_db_table_columns(self, table):
|
|
"""Returns list of column names from given table."""
|
|
return [r[0] for r in self.sql('''
|
|
select column_name
|
|
from information_schema.columns
|
|
where table_name = %s ''', table)]
|
|
|
|
def get_table_columns(self, doctype):
|
|
"""Returns list of column names from given doctype."""
|
|
columns = self.get_db_table_columns('tab' + doctype)
|
|
if not columns:
|
|
raise self.TableMissingError
|
|
return columns
|
|
|
|
def has_column(self, doctype, column):
|
|
"""Returns True if column exists in database."""
|
|
return column in self.get_table_columns(doctype)
|
|
|
|
def get_column_type(self, doctype, column):
|
|
return self.sql('''SELECT column_type FROM INFORMATION_SCHEMA.COLUMNS
|
|
WHERE table_name = 'tab{0}' AND column_name = '{1}' '''.format(doctype, column))[0][0]
|
|
|
|
def has_index(self, table_name, index_name):
|
|
pass
|
|
|
|
def add_index(self, doctype, fields, index_name=None):
|
|
pass
|
|
|
|
def add_unique(self, doctype, fields, constraint_name=None):
|
|
pass
|
|
|
|
@staticmethod
|
|
def get_index_name(fields):
|
|
index_name = "_".join(fields) + "_index"
|
|
# remove index length if present e.g. (10) from index name
|
|
index_name = re.sub(r"\s*\([^)]+\)\s*", r"", index_name)
|
|
return index_name
|
|
|
|
def get_system_setting(self, key):
|
|
def _load_system_settings():
|
|
return self.get_singles_dict("System Settings")
|
|
return frappe.cache().get_value("system_settings", _load_system_settings).get(key)
|
|
|
|
def close(self):
|
|
"""Close database connection."""
|
|
if self._conn:
|
|
# self._cursor.close()
|
|
self._conn.close()
|
|
self._cursor = None
|
|
self._conn = None
|
|
|
|
@staticmethod
|
|
def escape(s, percent=True):
|
|
"""Excape quotes and percent in given string."""
|
|
# implemented in specific class
|
|
pass
|
|
|
|
@staticmethod
|
|
def is_column_missing(e):
|
|
return frappe.db.is_missing_column(e)
|
|
|
|
def get_descendants(self, doctype, name):
|
|
'''Return descendants of the current record'''
|
|
node_location_indexes = self.get_value(doctype, name, ('lft', 'rgt'))
|
|
if node_location_indexes:
|
|
lft, rgt = node_location_indexes
|
|
return self.sql_list('''select name from `tab{doctype}`
|
|
where lft > {lft} and rgt < {rgt}'''.format(doctype=doctype, lft=lft, rgt=rgt))
|
|
else:
|
|
# when document does not exist
|
|
return []
|
|
|
|
def is_missing_table_or_column(self, e):
|
|
return self.is_missing_column(e) or self.is_missing_table(e)
|
|
|
|
def multisql(self, sql_dict, values=(), **kwargs):
|
|
current_dialect = frappe.conf.db_type or 'mariadb'
|
|
query = sql_dict.get(current_dialect)
|
|
return self.sql(query, values, **kwargs)
|
|
|
|
def delete(self, doctype, conditions):
|
|
if conditions:
|
|
conditions, values = self.build_conditions(conditions)
|
|
return self.sql("DELETE FROM `tab{doctype}` where {conditions}".format(
|
|
doctype=doctype,
|
|
conditions=conditions
|
|
), values)
|
|
else:
|
|
frappe.throw('No conditions provided')
|
|
|
|
def log_touched_tables(self, query, values=None):
|
|
if values:
|
|
query = frappe.safe_decode(self._cursor.mogrify(query, values))
|
|
if query.strip().lower().split()[0] in ('insert', 'delete', 'update', 'alter'):
|
|
# ([`\"']?) Captures ', " or ` at the begining of the table name (if provided)
|
|
# (tab([A-Z]\w+)( [A-Z]\w+)*) Captures table names that start with "tab"
|
|
# and are continued with multiple words that start with a captital letter
|
|
# e.g. 'tabXxx' or 'tabXxx Xxx' or 'tabXxx Xxx Xxx' and so on
|
|
# \1 matches the first captured group (quote character) at the end of the table name
|
|
tables = [groups[1] for groups in re.findall(r'([`"\']?)(tab([A-Z]\w+)( [A-Z]\w+)*)\1', query)]
|
|
if frappe.flags.touched_tables is None:
|
|
frappe.flags.touched_tables = set()
|
|
frappe.flags.touched_tables.update(tables)
|
|
|
|
|
|
def enqueue_jobs_after_commit():
|
|
if frappe.flags.enqueue_after_commit and len(frappe.flags.enqueue_after_commit) > 0:
|
|
for job in frappe.flags.enqueue_after_commit:
|
|
q = get_queue(job.get("queue"), is_async=job.get("is_async"))
|
|
q.enqueue_call(execute_job, timeout=job.get("timeout"),
|
|
kwargs=job.get("queue_args"))
|
|
frappe.flags.enqueue_after_commit = []
|
|
|
|
# Helpers
|
|
def _cast_result(doctype, result):
|
|
batch = [ ]
|
|
|
|
try:
|
|
for field, value in result:
|
|
df = frappe.get_meta(doctype).get_field(field)
|
|
if df:
|
|
value = cast_fieldtype(df.fieldtype, value)
|
|
|
|
batch.append(tuple([field, value]))
|
|
except frappe.exceptions.DoesNotExistError:
|
|
return result
|
|
|
|
return tuple(batch)
|