3446026555
The license.txt file has been replaced with LICENSE for quite a while now. INAL but it didn't seem accurate to say "hey, checkout license.txt although there's no such file". Apart from this, there were inconsistencies in the headers altogether...this change brings consistency.
684 lines
20 KiB
Python
684 lines
20 KiB
Python
# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
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# License: MIT. See LICENSE
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# metadata
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'''
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Load metadata (DocType) class
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Example:
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meta = frappe.get_meta('User')
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if meta.has_field('first_name'):
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print("DocType" table has field "first_name")
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'''
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from datetime import datetime
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import frappe, json, os
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from frappe.utils import cstr, cint, cast
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from frappe.model import default_fields, no_value_fields, optional_fields, data_fieldtypes, table_fields
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from frappe.model.document import Document
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from frappe.model.base_document import BaseDocument
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from frappe.modules import load_doctype_module
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from frappe.model.workflow import get_workflow_name
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from frappe import _
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def get_meta(doctype, cached=True):
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if cached:
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if not frappe.local.meta_cache.get(doctype):
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meta = frappe.cache().hget("meta", doctype)
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if meta:
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meta = Meta(meta)
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else:
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meta = Meta(doctype)
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frappe.cache().hset('meta', doctype, meta.as_dict())
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frappe.local.meta_cache[doctype] = meta
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return frappe.local.meta_cache[doctype]
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else:
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return load_meta(doctype)
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def load_meta(doctype):
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return Meta(doctype)
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def get_table_columns(doctype):
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return frappe.db.get_table_columns(doctype)
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def load_doctype_from_file(doctype):
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fname = frappe.scrub(doctype)
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with open(frappe.get_app_path("frappe", "core", "doctype", fname, fname + ".json"), "r") as f:
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txt = json.loads(f.read())
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for d in txt.get("fields", []):
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d["doctype"] = "DocField"
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for d in txt.get("permissions", []):
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d["doctype"] = "DocPerm"
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txt["fields"] = [BaseDocument(d) for d in txt["fields"]]
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if "permissions" in txt:
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txt["permissions"] = [BaseDocument(d) for d in txt["permissions"]]
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return txt
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class Meta(Document):
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_metaclass = True
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default_fields = list(default_fields)[1:]
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special_doctypes = ("DocField", "DocPerm", "DocType", "Module Def", 'DocType Action', 'DocType Link')
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def __init__(self, doctype):
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self._fields = {}
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if isinstance(doctype, dict):
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super(Meta, self).__init__(doctype)
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elif isinstance(doctype, Document):
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super(Meta, self).__init__(doctype.as_dict())
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self.process()
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else:
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super(Meta, self).__init__("DocType", doctype)
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self.process()
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def load_from_db(self):
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try:
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super(Meta, self).load_from_db()
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except frappe.DoesNotExistError:
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if self.doctype=="DocType" and self.name in self.special_doctypes:
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self.__dict__.update(load_doctype_from_file(self.name))
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else:
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raise
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def process(self):
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# don't process for special doctypes
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# prevent's circular dependency
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if self.name in self.special_doctypes:
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return
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self.add_custom_fields()
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self.apply_property_setters()
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self.sort_fields()
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self.get_valid_columns()
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self.set_custom_permissions()
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self.add_custom_links_and_actions()
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def as_dict(self, no_nulls = False):
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def serialize(doc):
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out = {}
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for key in doc.__dict__:
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value = doc.__dict__.get(key)
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if isinstance(value, (list, tuple)):
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if len(value) > 0 and hasattr(value[0], '__dict__'):
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value = [serialize(d) for d in value]
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else:
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# non standard list object, skip
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continue
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if (isinstance(value, (str, int, float, datetime, list, tuple))
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or (not no_nulls and value is None)):
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out[key] = value
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return out
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return serialize(self)
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def get_link_fields(self):
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return self.get("fields", {"fieldtype": "Link", "options":["!=", "[Select]"]})
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def get_data_fields(self):
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return self.get("fields", {"fieldtype": "Data"})
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def get_dynamic_link_fields(self):
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if not hasattr(self, '_dynamic_link_fields'):
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self._dynamic_link_fields = self.get("fields", {"fieldtype": "Dynamic Link"})
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return self._dynamic_link_fields
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def get_select_fields(self):
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return self.get("fields", {"fieldtype": "Select", "options":["not in",
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["[Select]", "Loading..."]]})
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def get_image_fields(self):
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return self.get("fields", {"fieldtype": "Attach Image"})
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def get_code_fields(self):
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return self.get("fields", {"fieldtype": "Code"})
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def get_set_only_once_fields(self):
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'''Return fields with `set_only_once` set'''
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if not hasattr(self, "_set_only_once_fields"):
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self._set_only_once_fields = self.get("fields", {"set_only_once": 1})
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return self._set_only_once_fields
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def get_table_fields(self):
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if not hasattr(self, "_table_fields"):
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if self.name!="DocType":
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self._table_fields = self.get('fields', {"fieldtype": ['in', table_fields]})
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else:
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self._table_fields = DOCTYPE_TABLE_FIELDS
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return self._table_fields
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def get_global_search_fields(self):
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'''Returns list of fields with `in_global_search` set and `name` if set'''
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fields = self.get("fields", {"in_global_search": 1, "fieldtype": ["not in", no_value_fields]})
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if getattr(self, 'show_name_in_global_search', None):
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fields.append(frappe._dict(fieldtype='Data', fieldname='name', label='Name'))
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return fields
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def get_valid_columns(self):
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if not hasattr(self, "_valid_columns"):
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table_exists = frappe.db.table_exists(self.name)
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if self.name in self.special_doctypes and table_exists:
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self._valid_columns = get_table_columns(self.name)
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else:
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self._valid_columns = self.default_fields + \
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[df.fieldname for df in self.get("fields") if df.fieldtype in data_fieldtypes]
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return self._valid_columns
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def get_table_field_doctype(self, fieldname):
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return {
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"fields": "DocField",
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"permissions": "DocPerm",
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"actions": "DocType Action",
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'links': 'DocType Link'
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}.get(fieldname)
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def get_field(self, fieldname):
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'''Return docfield from meta'''
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if not self._fields:
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for f in self.get("fields"):
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self._fields[f.fieldname] = f
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return self._fields.get(fieldname)
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def has_field(self, fieldname):
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'''Returns True if fieldname exists'''
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return True if self.get_field(fieldname) else False
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def get_label(self, fieldname):
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'''Get label of the given fieldname'''
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df = self.get_field(fieldname)
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if df:
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label = df.label
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else:
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label = {
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'name': _('ID'),
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'owner': _('Created By'),
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'modified_by': _('Modified By'),
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'creation': _('Created On'),
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'modified': _('Last Modified On'),
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'_assign': _('Assigned To')
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}.get(fieldname) or _('No Label')
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return label
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def get_options(self, fieldname):
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return self.get_field(fieldname).options
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def get_link_doctype(self, fieldname):
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df = self.get_field(fieldname)
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if df.fieldtype == "Link":
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return df.options
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elif df.fieldtype == "Dynamic Link":
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return self.get_options(df.options)
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else:
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return None
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def get_search_fields(self):
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search_fields = self.search_fields or "name"
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search_fields = [d.strip() for d in search_fields.split(",")]
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if "name" not in search_fields:
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search_fields.append("name")
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return search_fields
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def get_fields_to_fetch(self, link_fieldname=None):
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'''Returns a list of docfield objects for fields whose values
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are to be fetched and updated for a particular link field
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These fields are of type Data, Link, Text, Readonly and their
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fetch_from property is set as `link_fieldname`.`source_fieldname`'''
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out = []
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if not link_fieldname:
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link_fields = [df.fieldname for df in self.get_link_fields()]
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for df in self.fields:
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if df.fieldtype not in no_value_fields and getattr(df, 'fetch_from', None):
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if link_fieldname:
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if df.fetch_from.startswith(link_fieldname + '.'):
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out.append(df)
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else:
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if '.' in df.fetch_from:
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fieldname = df.fetch_from.split('.', 1)[0]
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if fieldname in link_fields:
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out.append(df)
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return out
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def get_list_fields(self):
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list_fields = ["name"] + [d.fieldname \
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for d in self.fields if (d.in_list_view and d.fieldtype in data_fieldtypes)]
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if self.title_field and self.title_field not in list_fields:
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list_fields.append(self.title_field)
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return list_fields
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def get_custom_fields(self):
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return [d for d in self.fields if d.get('is_custom_field')]
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def get_title_field(self):
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'''Return the title field of this doctype,
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explict via `title_field`, or `title` or `name`'''
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title_field = getattr(self, 'title_field', None)
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if not title_field and self.has_field('title'):
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title_field = 'title'
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if not title_field:
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title_field = 'name'
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return title_field
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def get_translatable_fields(self):
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'''Return all fields that are translation enabled'''
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return [d.fieldname for d in self.fields if d.translatable]
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def is_translatable(self, fieldname):
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'''Return true of false given a field'''
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field = self.get_field(fieldname)
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return field and field.translatable
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def get_workflow(self):
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return get_workflow_name(self.name)
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def add_custom_fields(self):
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if not frappe.db.table_exists('Custom Field'):
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return
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custom_fields = frappe.db.sql("""
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SELECT * FROM `tabCustom Field`
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WHERE dt = %s AND docstatus < 2
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""", (self.name,), as_dict=1, update={"is_custom_field": 1})
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self.extend("fields", custom_fields)
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def apply_property_setters(self):
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"""
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Property Setters are set via Customize Form. They override standard properties
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of the doctype or its child properties like fields, links etc. This method
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applies the customized properties over the standard meta object
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"""
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if not frappe.db.table_exists('Property Setter'):
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return
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property_setters = frappe.db.sql("""select * from `tabProperty Setter` where
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doc_type=%s""", (self.name,), as_dict=1)
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if not property_setters: return
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for ps in property_setters:
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if ps.doctype_or_field=='DocType':
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self.set(ps.property, cast(ps.property_type, ps.value))
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elif ps.doctype_or_field=='DocField':
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for d in self.fields:
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if d.fieldname == ps.field_name:
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d.set(ps.property, cast(ps.property_type, ps.value))
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break
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elif ps.doctype_or_field=='DocType Link':
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for d in self.links:
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if d.name == ps.row_name:
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d.set(ps.property, cast(ps.property_type, ps.value))
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break
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elif ps.doctype_or_field=='DocType Action':
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for d in self.actions:
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if d.name == ps.row_name:
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d.set(ps.property, cast(ps.property_type, ps.value))
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break
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def add_custom_links_and_actions(self):
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for doctype, fieldname in (('DocType Link', 'links'), ('DocType Action', 'actions')):
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# ignore_ddl because the `custom` column was added later via a patch
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for d in frappe.get_all(doctype, fields='*', filters=dict(parent=self.name, custom=1), ignore_ddl=True):
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self.append(fieldname, d)
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# set the fields in order if specified
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# order is saved as `links_order`
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order = json.loads(self.get('{}_order'.format(fieldname)) or '[]')
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if order:
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name_map = {d.name:d for d in self.get(fieldname)}
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new_list = []
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for name in order:
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if name in name_map:
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new_list.append(name_map[name])
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# add the missing items that have not be added
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# maybe these items were added to the standard product
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# after the customization was done
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for d in self.get(fieldname):
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if d not in new_list:
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new_list.append(d)
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self.set(fieldname, new_list)
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def sort_fields(self):
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"""sort on basis of insert_after"""
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custom_fields = sorted(self.get_custom_fields(), key=lambda df: df.idx)
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if custom_fields:
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newlist = []
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# if custom field is at top
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# insert_after is false
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for c in list(custom_fields):
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if not c.insert_after:
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newlist.append(c)
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custom_fields.pop(custom_fields.index(c))
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# standard fields
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newlist += [df for df in self.get('fields') if not df.get('is_custom_field')]
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newlist_fieldnames = [df.fieldname for df in newlist]
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for i in range(2):
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for df in list(custom_fields):
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if df.insert_after in newlist_fieldnames:
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cf = custom_fields.pop(custom_fields.index(df))
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idx = newlist_fieldnames.index(df.insert_after)
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newlist.insert(idx + 1, cf)
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newlist_fieldnames.insert(idx + 1, cf.fieldname)
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if not custom_fields:
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break
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# worst case, add remaining custom fields to last
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if custom_fields:
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newlist += custom_fields
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# renum idx
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for i, f in enumerate(newlist):
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f.idx = i + 1
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self.fields = newlist
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def set_custom_permissions(self):
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'''Reset `permissions` with Custom DocPerm if exists'''
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if frappe.flags.in_patch or frappe.flags.in_install:
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return
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if not self.istable and self.name not in ('DocType', 'DocField', 'DocPerm',
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'Custom DocPerm'):
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custom_perms = frappe.get_all('Custom DocPerm', fields='*',
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filters=dict(parent=self.name), update=dict(doctype='Custom DocPerm'))
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if custom_perms:
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self.permissions = [Document(d) for d in custom_perms]
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def get_fieldnames_with_value(self, with_field_meta=False):
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return [df if with_field_meta else df.fieldname \
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for df in self.fields if df.fieldtype not in no_value_fields]
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def get_fields_to_check_permissions(self, user_permission_doctypes):
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fields = self.get("fields", {
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"fieldtype":"Link",
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"parent": self.name,
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"ignore_user_permissions":("!=", 1),
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"options":("in", user_permission_doctypes)
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})
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if self.name in user_permission_doctypes:
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fields.append(frappe._dict({
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"label":"Name",
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"fieldname":"name",
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"options": self.name
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}))
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return fields
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def get_high_permlevel_fields(self):
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"""Build list of fields with high perm level and all the higher perm levels defined."""
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if not hasattr(self, "high_permlevel_fields"):
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self.high_permlevel_fields = []
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for df in self.fields:
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if df.permlevel > 0:
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self.high_permlevel_fields.append(df)
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return self.high_permlevel_fields
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def get_permlevel_access(self, permission_type='read', parenttype=None):
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has_access_to = []
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roles = frappe.get_roles()
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for perm in self.get_permissions(parenttype):
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if perm.role in roles and perm.get(permission_type):
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if perm.permlevel not in has_access_to:
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has_access_to.append(perm.permlevel)
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return has_access_to
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def get_permissions(self, parenttype=None):
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if self.istable and parenttype:
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# use parent permissions
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permissions = frappe.get_meta(parenttype).permissions
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else:
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permissions = self.get('permissions', [])
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return permissions
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def get_dashboard_data(self):
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'''Returns dashboard setup related to this doctype.
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This method will return the `data` property in the `[doctype]_dashboard.py`
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file in the doctype's folder, along with any overrides or extensions
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implemented in other Frappe applications via hooks.
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'''
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data = frappe._dict()
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if not self.custom:
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try:
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module = load_doctype_module(self.name, suffix='_dashboard')
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if hasattr(module, 'get_data'):
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data = frappe._dict(module.get_data())
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except ImportError:
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pass
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self.add_doctype_links(data)
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if not self.custom:
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for hook in frappe.get_hooks("override_doctype_dashboards", {}).get(self.name, []):
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data = frappe._dict(frappe.get_attr(hook)(data=data))
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return data
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def add_doctype_links(self, data):
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'''add `links` child table in standard link dashboard format'''
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dashboard_links = []
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if hasattr(self, 'links') and self.links:
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dashboard_links.extend(self.links)
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if not data.transactions:
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# init groups
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data.transactions = []
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if not data.non_standard_fieldnames:
|
|
data.non_standard_fieldnames = {}
|
|
|
|
if not data.internal_links:
|
|
data.internal_links = {}
|
|
|
|
for link in dashboard_links:
|
|
link.added = False
|
|
if link.hidden:
|
|
continue
|
|
|
|
for group in data.transactions:
|
|
group = frappe._dict(group)
|
|
|
|
# For internal links parent doctype will be the key
|
|
doctype = link.parent_doctype or link.link_doctype
|
|
# group found
|
|
if link.group and group.label == link.group:
|
|
if doctype not in group.get('items'):
|
|
group.get('items').append(doctype)
|
|
link.added = True
|
|
|
|
if not link.added:
|
|
# group not found, make a new group
|
|
data.transactions.append(dict(
|
|
label = link.group,
|
|
items = [link.parent_doctype or link.link_doctype]
|
|
))
|
|
|
|
if not link.is_child_table:
|
|
if link.link_fieldname != data.fieldname:
|
|
if data.fieldname:
|
|
data.non_standard_fieldnames[link.link_doctype] = link.link_fieldname
|
|
else:
|
|
data.fieldname = link.link_fieldname
|
|
elif link.is_child_table:
|
|
if not data.fieldname:
|
|
data.fieldname = link.link_fieldname
|
|
data.internal_links[link.parent_doctype] = [link.table_fieldname, link.link_fieldname]
|
|
|
|
|
|
def get_row_template(self):
|
|
return self.get_web_template(suffix='_row')
|
|
|
|
def get_list_template(self):
|
|
return self.get_web_template(suffix='_list')
|
|
|
|
def get_web_template(self, suffix=''):
|
|
'''Returns the relative path of the row template for this doctype'''
|
|
module_name = frappe.scrub(self.module)
|
|
doctype = frappe.scrub(self.name)
|
|
template_path = frappe.get_module_path(module_name, 'doctype',
|
|
doctype, 'templates', doctype + suffix + '.html')
|
|
if os.path.exists(template_path):
|
|
return '{module_name}/doctype/{doctype_name}/templates/{doctype_name}{suffix}.html'.format(
|
|
module_name = module_name, doctype_name = doctype, suffix=suffix)
|
|
return None
|
|
|
|
def is_nested_set(self):
|
|
return self.has_field('lft') and self.has_field('rgt')
|
|
|
|
DOCTYPE_TABLE_FIELDS = [
|
|
frappe._dict({"fieldname": "fields", "options": "DocField"}),
|
|
frappe._dict({"fieldname": "permissions", "options": "DocPerm"}),
|
|
frappe._dict({"fieldname": "actions", "options": "DocType Action"}),
|
|
frappe._dict({"fieldname": "links", "options": "DocType Link"}),
|
|
]
|
|
|
|
#######
|
|
|
|
def is_single(doctype):
|
|
try:
|
|
return frappe.db.get_value("DocType", doctype, "issingle")
|
|
except IndexError:
|
|
raise Exception('Cannot determine whether %s is single' % doctype)
|
|
|
|
def get_parent_dt(dt):
|
|
parent_dt = frappe.db.get_all('DocField', 'parent', dict(fieldtype=['in', frappe.model.table_fields], options=dt), limit=1)
|
|
return parent_dt and parent_dt[0].parent or ''
|
|
|
|
def set_fieldname(field_id, fieldname):
|
|
frappe.db.set_value('DocField', field_id, 'fieldname', fieldname)
|
|
|
|
def get_field_currency(df, doc=None):
|
|
"""get currency based on DocField options and fieldvalue in doc"""
|
|
currency = None
|
|
|
|
if not df.get("options"):
|
|
return None
|
|
|
|
if not doc:
|
|
return None
|
|
|
|
if not getattr(frappe.local, "field_currency", None):
|
|
frappe.local.field_currency = frappe._dict()
|
|
|
|
if not (frappe.local.field_currency.get((doc.doctype, doc.name), {}).get(df.fieldname) or
|
|
(doc.parent and frappe.local.field_currency.get((doc.doctype, doc.parent), {}).get(df.fieldname))):
|
|
|
|
ref_docname = doc.parent or doc.name
|
|
|
|
if ":" in cstr(df.get("options")):
|
|
split_opts = df.get("options").split(":")
|
|
if len(split_opts)==3 and doc.get(split_opts[1]):
|
|
currency = frappe.get_cached_value(split_opts[0], doc.get(split_opts[1]), split_opts[2])
|
|
else:
|
|
currency = doc.get(df.get("options"))
|
|
if doc.parent:
|
|
if currency:
|
|
ref_docname = doc.name
|
|
else:
|
|
if frappe.get_meta(doc.parenttype).has_field(df.get("options")):
|
|
# only get_value if parent has currency field
|
|
currency = frappe.db.get_value(doc.parenttype, doc.parent, df.get("options"))
|
|
|
|
if currency:
|
|
frappe.local.field_currency.setdefault((doc.doctype, ref_docname), frappe._dict())\
|
|
.setdefault(df.fieldname, currency)
|
|
|
|
return frappe.local.field_currency.get((doc.doctype, doc.name), {}).get(df.fieldname) or \
|
|
(doc.parent and frappe.local.field_currency.get((doc.doctype, doc.parent), {}).get(df.fieldname))
|
|
|
|
def get_field_precision(df, doc=None, currency=None):
|
|
"""get precision based on DocField options and fieldvalue in doc"""
|
|
from frappe.utils import get_number_format_info
|
|
|
|
if df.precision:
|
|
precision = cint(df.precision)
|
|
|
|
elif df.fieldtype == "Currency":
|
|
precision = cint(frappe.db.get_default("currency_precision"))
|
|
if not precision:
|
|
number_format = frappe.db.get_default("number_format") or "#,###.##"
|
|
decimal_str, comma_str, precision = get_number_format_info(number_format)
|
|
else:
|
|
precision = cint(frappe.db.get_default("float_precision")) or 3
|
|
|
|
return precision
|
|
|
|
|
|
def get_default_df(fieldname):
|
|
if fieldname in default_fields:
|
|
if fieldname in ("creation", "modified"):
|
|
return frappe._dict(
|
|
fieldname = fieldname,
|
|
fieldtype = "Datetime"
|
|
)
|
|
|
|
else:
|
|
return frappe._dict(
|
|
fieldname = fieldname,
|
|
fieldtype = "Data"
|
|
)
|
|
|
|
def trim_tables(doctype=None):
|
|
"""
|
|
Removes database fields that don't exist in the doctype (json or custom field). This may be needed
|
|
as maintenance since removing a field in a DocType doesn't automatically
|
|
delete the db field.
|
|
"""
|
|
ignore_fields = default_fields + optional_fields
|
|
|
|
filters={ "issingle": 0 }
|
|
if doctype:
|
|
filters["name"] = doctype
|
|
|
|
for doctype in frappe.db.get_all("DocType", filters=filters):
|
|
doctype = doctype.name
|
|
columns = frappe.db.get_table_columns(doctype)
|
|
fields = frappe.get_meta(doctype).get_fieldnames_with_value()
|
|
columns_to_remove = [f for f in list(set(columns) - set(fields)) if f not in ignore_fields
|
|
and not f.startswith("_")]
|
|
if columns_to_remove:
|
|
print(doctype, "columns removed:", columns_to_remove)
|
|
columns_to_remove = ", ".join("drop `{0}`".format(c) for c in columns_to_remove)
|
|
query = """alter table `tab{doctype}` {columns}""".format(
|
|
doctype=doctype, columns=columns_to_remove)
|
|
frappe.db.sql_ddl(query)
|