sergeybe

from django.db.models import Lookup
from django.db.models.fields import Field

@Field.register_lookup
class NotEqual(Lookup):
    lookup_name = 'ne'

    def as_sql(self, compiler, connection):
        lhs, lhs_params = self.process_lhs(compiler, connection)
        rhs, rhs_params = self.process_rhs(compiler, connection)

sergeybe

{
    "title": "My Finder",
    "rules": [
        {
            "description": "Change Command-Q to Command-W in Finder",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "q",

sergeybe

from django.apps import apps

for _class in apps.get_models():
    globals()[_class.__name__] = _class

sergeybe

PostgreSQL

Size of Postgres database:

SELECT pg_size_pretty( pg_database_size('dbname') );

Size of Postgres table:

sergeybe

local hyper = {"cmd", "alt", "ctrl", "shift"}

local applicationHotkeys = {
  e = 'Google Chrome',
  t = 'iTerm2',
  s = 'Slack',
  x = 'Xcode',
  v = 'VS Code',
  p = 'System Preferences',
  f = 'Firefox',

sergeybe

#  C-X C-R reload
set convert-meta off
set bell-style none
set mark-symlinked-directories on
#TAB: menu-complete
"\e[Z": "\e-1\C-i"
set colored-stats on

"\e[5~": history-search-backward
"\e[6~": history-search-forward

sergeybe

class RenameFieldsSerializerMixin(object):
    def rename_field_from(self, name):
        return name.upper()

    def rename_field_to(self, name):
        return name.lower()

    def to_internal_value(self, data):
        instance = super().to_internal_value(data)
        new_data = OrderedDict()

sergeybe

class ReadWriteMethodField(fields.Field):
    """ Read and write method field for DFR """
    def __init__(self, field_type=fields.Field, get_method_name=None, put_method_name=None, **kwargs):
        self.field_type = field_type
        self.get_method_name = get_method_name
        self.put_method_name = put_method_name
        self._field = field_type(**kwargs)
        kwargs['read_only'] = False
        kwargs['source'] = '*'
        super(ReadWriteMethodField, self).__init__(**kwargs)

sergeybe

from stdimage.utils import UploadToUUID


class UploadTo(UploadToUUID):
    """
    Creates path file like `path/abc/abcdefabcdefabcdefabcdefabcdefab.ext`
    """
    path_pattern = os.path.join('%(path)s', '%(name).3s')

sergeybe

/**
 * Wrap gulp streams into fail-safe function for better error reporting
 * Usage:
 * gulp.task('less', wrapPipe(function(success, error) {
 *   return gulp.src('less/*.less')
 *      .pipe(less().on('error', error))
 *      .pipe(gulp.dest('app/css'));
 * }));
 */