45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2015, Frappe Technologies and contributors
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# For lice
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from __future__ import unicode_literals
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import frappe
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from frappe import _
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class OverlapError(frappe.ValidationError): pass
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def validate_overlap_for(doc, doctype, fieldname, value=None):
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"""Checks overlap for specified feild.
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:param fieldname: Checks Overlap for this feild
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"""
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existing = get_overlap_for(doc, doctype, fieldname, value)
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if existing:
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frappe.throw(_("This {0} conflicts with {1} for {2} {3}").format(doc.doctype, existing.name,
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doc.meta.get_label(fieldname) if not value else fieldname , value or doc.get(fieldname)), OverlapError)
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def get_overlap_for(doc, doctype, fieldname, value=None):
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"""Returns overlaping document for specified feild.
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:param fieldname: Checks Overlap for this feild
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"""
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existing = frappe.db.sql("""select name, from_time, to_time from `tab{0}`
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where `{1}`=%(val)s and schedule_date = %(schedule_date)s and
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(
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(from_time > %(from_time)s and from_time < %(to_time)s) or
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(to_time > %(from_time)s and to_time < %(to_time)s) or
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(%(from_time)s > from_time and %(from_time)s < to_time) or
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(%(from_time)s = from_time and %(to_time)s = to_time))
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and name!=%(name)s""".format(doctype, fieldname),
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{
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"schedule_date": doc.schedule_date,
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"val": value or doc.get(fieldname),
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"from_time": doc.from_time,
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"to_time": doc.to_time,
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"name": doc.name or "No Name"
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}, as_dict=True)
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return existing[0] if existing else None
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