Got basic webpage working. Need to make base page, static folders

2018-01-20 13:16:20 -08:00
parent 982037efc1
commit 1a375726ae
5625 changed files with 577078 additions and 0 deletions
@@ -0,0 +1,274 @@
+import uuid
+
+from django.conf import settings
+from django.db.backends.base.operations import BaseDatabaseOperations
+from django.utils import timezone
+from django.utils.encoding import force_text
+
+
+class DatabaseOperations(BaseDatabaseOperations):
+    compiler_module = "django.db.backends.mysql.compiler"
+
+    # MySQL stores positive fields as UNSIGNED ints.
+    integer_field_ranges = dict(
+        BaseDatabaseOperations.integer_field_ranges,
+        PositiveSmallIntegerField=(0, 65535),
+        PositiveIntegerField=(0, 4294967295),
+    )
+    cast_data_types = {
+        'CharField': 'char(%(max_length)s)',
+        'IntegerField': 'signed integer',
+        'BigIntegerField': 'signed integer',
+        'SmallIntegerField': 'signed integer',
+        'FloatField': 'signed',
+        'PositiveIntegerField': 'unsigned integer',
+        'PositiveSmallIntegerField': 'unsigned integer',
+    }
+    cast_char_field_without_max_length = 'char'
+
+    def date_extract_sql(self, lookup_type, field_name):
+        # http://dev.mysql.com/doc/mysql/en/date-and-time-functions.html
+        if lookup_type == 'week_day':
+            # DAYOFWEEK() returns an integer, 1-7, Sunday=1.
+            # Note: WEEKDAY() returns 0-6, Monday=0.
+            return "DAYOFWEEK(%s)" % field_name
+        elif lookup_type == 'week':
+            # Override the value of default_week_format for consistency with
+            # other database backends.
+            # Mode 3: Monday, 1-53, with 4 or more days this year.
+            return "WEEK(%s, 3)" % field_name
+        else:
+            # EXTRACT returns 1-53 based on ISO-8601 for the week number.
+            return "EXTRACT(%s FROM %s)" % (lookup_type.upper(), field_name)
+
+    def date_trunc_sql(self, lookup_type, field_name):
+        fields = {
+            'year': '%%Y-01-01',
+            'month': '%%Y-%%m-01',
+        }  # Use double percents to escape.
+        if lookup_type in fields:
+            format_str = fields[lookup_type]
+            return "CAST(DATE_FORMAT(%s, '%s') AS DATE)" % (field_name, format_str)
+        elif lookup_type == 'quarter':
+            return "MAKEDATE(YEAR(%s), 1) + INTERVAL QUARTER(%s) QUARTER - INTERVAL 1 QUARTER" % (
+                field_name, field_name
+            )
+        else:
+            return "DATE(%s)" % (field_name)
+
+    def _convert_field_to_tz(self, field_name, tzname):
+        if settings.USE_TZ:
+            field_name = "CONVERT_TZ(%s, 'UTC', '%s')" % (field_name, tzname)
+        return field_name
+
+    def datetime_cast_date_sql(self, field_name, tzname):
+        field_name = self._convert_field_to_tz(field_name, tzname)
+        return "DATE(%s)" % field_name
+
+    def datetime_cast_time_sql(self, field_name, tzname):
+        field_name = self._convert_field_to_tz(field_name, tzname)
+        return "TIME(%s)" % field_name
+
+    def datetime_extract_sql(self, lookup_type, field_name, tzname):
+        field_name = self._convert_field_to_tz(field_name, tzname)
+        return self.date_extract_sql(lookup_type, field_name)
+
+    def datetime_trunc_sql(self, lookup_type, field_name, tzname):
+        field_name = self._convert_field_to_tz(field_name, tzname)
+        fields = ['year', 'month', 'day', 'hour', 'minute', 'second']
+        format = ('%%Y-', '%%m', '-%%d', ' %%H:', '%%i', ':%%s')  # Use double percents to escape.
+        format_def = ('0000-', '01', '-01', ' 00:', '00', ':00')
+        if lookup_type == 'quarter':
+            return (
+                "CAST(DATE_FORMAT(MAKEDATE(YEAR({field_name}), 1) + "
+                "INTERVAL QUARTER({field_name}) QUARTER - " +
+                "INTERVAL 1 QUARTER, '%%Y-%%m-01 00:00:00') AS DATETIME)"
+            ).format(field_name=field_name)
+        try:
+            i = fields.index(lookup_type) + 1
+        except ValueError:
+            sql = field_name
+        else:
+            format_str = ''.join([f for f in format[:i]] + [f for f in format_def[i:]])
+            sql = "CAST(DATE_FORMAT(%s, '%s') AS DATETIME)" % (field_name, format_str)
+        return sql
+
+    def time_trunc_sql(self, lookup_type, field_name):
+        fields = {
+            'hour': '%%H:00:00',
+            'minute': '%%H:%%i:00',
+            'second': '%%H:%%i:%%s',
+        }  # Use double percents to escape.
+        if lookup_type in fields:
+            format_str = fields[lookup_type]
+            return "CAST(DATE_FORMAT(%s, '%s') AS TIME)" % (field_name, format_str)
+        else:
+            return "TIME(%s)" % (field_name)
+
+    def date_interval_sql(self, timedelta):
+        return "INTERVAL '%06f' SECOND_MICROSECOND" % timedelta.total_seconds()
+
+    def format_for_duration_arithmetic(self, sql):
+        if self.connection.features.supports_microsecond_precision:
+            return 'INTERVAL %s MICROSECOND' % sql
+        else:
+            return 'INTERVAL FLOOR(%s / 1000000) SECOND' % sql
+
+    def force_no_ordering(self):
+        """
+        "ORDER BY NULL" prevents MySQL from implicitly ordering by grouped
+        columns. If no ordering would otherwise be applied, we don't want any
+        implicit sorting going on.
+        """
+        return [(None, ("NULL", [], False))]
+
+    def last_executed_query(self, cursor, sql, params):
+        # With MySQLdb, cursor objects have an (undocumented) "_last_executed"
+        # attribute where the exact query sent to the database is saved.
+        # See MySQLdb/cursors.py in the source distribution.
+        return force_text(getattr(cursor, '_last_executed', None), errors='replace')
+
+    def no_limit_value(self):
+        # 2**64 - 1, as recommended by the MySQL documentation
+        return 18446744073709551615
+
+    def quote_name(self, name):
+        if name.startswith("`") and name.endswith("`"):
+            return name  # Quoting once is enough.
+        return "`%s`" % name
+
+    def random_function_sql(self):
+        return 'RAND()'
+
+    def sql_flush(self, style, tables, sequences, allow_cascade=False):
+        # NB: The generated SQL below is specific to MySQL
+        # 'TRUNCATE x;', 'TRUNCATE y;', 'TRUNCATE z;'... style SQL statements
+        # to clear all tables of all data
+        if tables:
+            sql = ['SET FOREIGN_KEY_CHECKS = 0;']
+            for table in tables:
+                sql.append('%s %s;' % (
+                    style.SQL_KEYWORD('TRUNCATE'),
+                    style.SQL_FIELD(self.quote_name(table)),
+                ))
+            sql.append('SET FOREIGN_KEY_CHECKS = 1;')
+            sql.extend(self.sequence_reset_by_name_sql(style, sequences))
+            return sql
+        else:
+            return []
+
+    def validate_autopk_value(self, value):
+        # MySQLism: zero in AUTO_INCREMENT field does not work. Refs #17653.
+        if value == 0:
+            raise ValueError('The database backend does not accept 0 as a '
+                             'value for AutoField.')
+        return value
+
+    def adapt_datetimefield_value(self, value):
+        if value is None:
+            return None
+
+        # Expression values are adapted by the database.
+        if hasattr(value, 'resolve_expression'):
+            return value
+
+        # MySQL doesn't support tz-aware datetimes
+        if timezone.is_aware(value):
+            if settings.USE_TZ:
+                value = timezone.make_naive(value, self.connection.timezone)
+            else:
+                raise ValueError("MySQL backend does not support timezone-aware datetimes when USE_TZ is False.")
+
+        if not self.connection.features.supports_microsecond_precision:
+            value = value.replace(microsecond=0)
+
+        return str(value)
+
+    def adapt_timefield_value(self, value):
+        if value is None:
+            return None
+
+        # Expression values are adapted by the database.
+        if hasattr(value, 'resolve_expression'):
+            return value
+
+        # MySQL doesn't support tz-aware times
+        if timezone.is_aware(value):
+            raise ValueError("MySQL backend does not support timezone-aware times.")
+
+        return str(value)
+
+    def max_name_length(self):
+        return 64
+
+    def bulk_insert_sql(self, fields, placeholder_rows):
+        placeholder_rows_sql = (", ".join(row) for row in placeholder_rows)
+        values_sql = ", ".join("(%s)" % sql for sql in placeholder_rows_sql)
+        return "VALUES " + values_sql
+
+    def combine_expression(self, connector, sub_expressions):
+        if connector == '^':
+            return 'POW(%s)' % ','.join(sub_expressions)
+        # Convert the result to a signed integer since MySQL's binary operators
+        # return an unsigned integer.
+        elif connector in ('&', '|', '<<'):
+            return 'CONVERT(%s, SIGNED)' % connector.join(sub_expressions)
+        elif connector == '>>':
+            lhs, rhs = sub_expressions
+            return 'FLOOR(%(lhs)s / POW(2, %(rhs)s))' % {'lhs': lhs, 'rhs': rhs}
+        return super().combine_expression(connector, sub_expressions)
+
+    def get_db_converters(self, expression):
+        converters = super().get_db_converters(expression)
+        internal_type = expression.output_field.get_internal_type()
+        if internal_type == 'TextField':
+            converters.append(self.convert_textfield_value)
+        elif internal_type in ['BooleanField', 'NullBooleanField']:
+            converters.append(self.convert_booleanfield_value)
+        elif internal_type == 'DateTimeField':
+            converters.append(self.convert_datetimefield_value)
+        elif internal_type == 'UUIDField':
+            converters.append(self.convert_uuidfield_value)
+        return converters
+
+    def convert_textfield_value(self, value, expression, connection):
+        if value is not None:
+            value = force_text(value)
+        return value
+
+    def convert_booleanfield_value(self, value, expression, connection):
+        if value in (0, 1):
+            value = bool(value)
+        return value
+
+    def convert_datetimefield_value(self, value, expression, connection):
+        if value is not None:
+            if settings.USE_TZ:
+                value = timezone.make_aware(value, self.connection.timezone)
+        return value
+
+    def convert_uuidfield_value(self, value, expression, connection):
+        if value is not None:
+            value = uuid.UUID(value)
+        return value
+
+    def binary_placeholder_sql(self, value):
+        return '_binary %s' if value is not None and not hasattr(value, 'as_sql') else '%s'
+
+    def subtract_temporals(self, internal_type, lhs, rhs):
+        lhs_sql, lhs_params = lhs
+        rhs_sql, rhs_params = rhs
+        if self.connection.features.supports_microsecond_precision:
+            if internal_type == 'TimeField':
+                return (
+                    "((TIME_TO_SEC(%(lhs)s) * POW(10, 6) + MICROSECOND(%(lhs)s)) -"
+                    " (TIME_TO_SEC(%(rhs)s) * POW(10, 6) + MICROSECOND(%(rhs)s)))"
+                ) % {'lhs': lhs_sql, 'rhs': rhs_sql}, lhs_params * 2 + rhs_params * 2
+            else:
+                return "TIMESTAMPDIFF(MICROSECOND, %s, %s)" % (rhs_sql, lhs_sql), rhs_params + lhs_params
+        elif internal_type == 'TimeField':
+            return (
+                "(TIME_TO_SEC(%s) * POW(10, 6) - TIME_TO_SEC(%s) * POW(10, 6))"
+            ) % (lhs_sql, rhs_sql), lhs_params + rhs_params
+        else:
+            return "(TIMESTAMPDIFF(SECOND, %s, %s) * POW(10, 6))" % (rhs_sql, lhs_sql), rhs_params + lhs_params