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DSL for Django

Project description


Licence Version


  • PLY
  • Django


pip install django-domain-specific-language


Allows you to search by specifying the name of the column of the database.

Characters allowed:

  • Key (column name) : A-Za-z0-9_.
  • Value : all except ')' '(' and white space.

Query Parser Syntax:

  • Wildcard Searches: *

    • *test : All that ends by test
    • test* : All that starts by test
    • *test* : All that contains test
    • \*test\* : All equal to *test*
    • \*test* : All that starts by *test
    • *test\* : All that ends by test*
  • Regex Searches: ~

    • ~\W+ : Matches any character which is not a word character.
    • \~test : Matches all equal to ~test.
  • Boolean Operators: AND OR NOT

  • Grouping: ( )

  • Date and number Searches (operators: < > <= >=) :

    • key>2 : All greater than 2
    • key<=2 : All less than or equal to 2
    • key>2018-05-04 : All greater than 2018-05-04
    • key<=2018-05-04 : All less than or equal to 2018-05-04
  • Date Range Searches (inclusive) (which correspond to SQL queries of BETWEEN):

    • key:2018-05-04_2018-05-05
  • Null Searches (which correspond to SQL queries of IS NULL and IS NOT NULL):

    • key:True
    • key:False


Your database:

DB image

The possible researches:

  • Country:India AND Product:Ice-cream
  • Country:*a* AND NOT Product:~.*e$

In your code:

from import compile_expr
query = compile_expr(request.GET['expression'])

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