e407b78506
* Remove six for PY2 compatability since our dependencies are not, PY2 is legacy. * Removed usages of utils from future/past libraries since they are deprecated. This includes 'from __future__ ...' and 'from past...' statements. * Removed compatibility imports for PY2, switched from six imports to standard library imports. * Removed utils code blocks that handle operations depending on PY2/3 versions. * Removed 'from __future__ ...' lines from templates/code generators * Used PY3 syntaxes in place of PY2 compatible blocks. eg: metaclass
86 lines
2.8 KiB
Python
86 lines
2.8 KiB
Python
import frappe
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from frappe import _
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from frappe.database.schema import DBTable
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class MariaDBTable(DBTable):
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def create(self):
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add_text = ''
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# columns
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column_defs = self.get_column_definitions()
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if column_defs: add_text += ',\n'.join(column_defs) + ',\n'
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# index
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index_defs = self.get_index_definitions()
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if index_defs: add_text += ',\n'.join(index_defs) + ',\n'
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# create table
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frappe.db.sql("""create table `%s` (
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name varchar({varchar_len}) not null primary key,
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creation datetime(6),
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modified datetime(6),
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modified_by varchar({varchar_len}),
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owner varchar({varchar_len}),
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docstatus int(1) not null default '0',
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parent varchar({varchar_len}),
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parentfield varchar({varchar_len}),
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parenttype varchar({varchar_len}),
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idx int(8) not null default '0',
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%sindex parent(parent),
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index modified(modified))
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ENGINE={engine}
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ROW_FORMAT=COMPRESSED
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CHARACTER SET=utf8mb4
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COLLATE=utf8mb4_unicode_ci""".format(varchar_len=frappe.db.VARCHAR_LEN,
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engine=self.meta.get("engine") or 'InnoDB') % (self.table_name, add_text))
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def alter(self):
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for col in self.columns.values():
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col.build_for_alter_table(self.current_columns.get(col.fieldname.lower()))
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add_column_query = []
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modify_column_query = []
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add_index_query = []
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drop_index_query = []
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columns_to_modify = set(self.change_type + self.add_unique + self.set_default)
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for col in self.add_column:
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add_column_query.append("ADD COLUMN `{}` {}".format(col.fieldname, col.get_definition()))
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for col in columns_to_modify:
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modify_column_query.append("MODIFY `{}` {}".format(col.fieldname, col.get_definition()))
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for col in self.add_index:
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# if index key not exists
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if not frappe.db.sql("SHOW INDEX FROM `%s` WHERE key_name = %s" %
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(self.table_name, '%s'), col.fieldname):
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add_index_query.append("ADD INDEX `{}`(`{}`)".format(col.fieldname, col.fieldname))
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for col in self.drop_index:
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if col.fieldname != 'name': # primary key
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# if index key exists
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if frappe.db.sql("""SHOW INDEX FROM `{0}`
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WHERE key_name=%s
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AND Non_unique=%s""".format(self.table_name), (col.fieldname, col.unique)):
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drop_index_query.append("drop index `{}`".format(col.fieldname))
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try:
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for query_parts in [add_column_query, modify_column_query, add_index_query, drop_index_query]:
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if query_parts:
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query_body = ", ".join(query_parts)
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query = "ALTER TABLE `{}` {}".format(self.table_name, query_body)
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frappe.db.sql(query)
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except Exception as e:
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# sanitize
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if e.args[0]==1060:
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frappe.throw(str(e))
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elif e.args[0]==1062:
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fieldname = str(e).split("'")[-2]
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frappe.throw(_("{0} field cannot be set as unique in {1}, as there are non-unique existing values").format(
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fieldname, self.table_name))
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elif e.args[0]==1067:
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frappe.throw(str(e.args[1]))
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else:
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raise e
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