criteria-pattern 3.8.0
The Criteria Pattern is a Python package that simplifies and standardizes criteria based filtering, validation and selection.
Requires Python: >=3.11
Keywords: criteria, development, filtering, pattern, python, selection, tools, utilities, validation

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# 🤏🏻 Criteria Pattern

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The **Criteria Pattern** is a Python 🐍 package that simplifies and standardizes criteria based filtering 🤏🏻, validation and selection. This package provides a set of prebuilt 👷🏻 objects and utilities that you can drop into your existing projects and not have to implement yourself.

These utilities 🛠️ are useful when you need complex filtering logic. It also enforces 👮🏻 best practices so all your filtering processes follow a uniform standard.

Easy to install and integrate, this is a must have for any Python developer looking to simplify their workflow, enforce design patterns and use the full power of modern ORMs and SQL 🗄️ in their projects 🚀.
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## Table of Contents

- [📥 Installation](#installation)
- [📚 Documentation](#documentation)
- [💻 Utilization](#utilization)
- [🤝 Contributing](#contributing)
- [🔑 License](#license)

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## 📥 Installation

You can install **Criteria Pattern** using `pip`:

```bash
pip install criteria-pattern
```

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## 📚 Documentation

This [project's documentation](https://deepwiki.com/adriamontoto/criteria-pattern) is powered by DeepWiki, which provides a comprehensive overview of the **Criteria Pattern** and its usage.

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## 💻 Utilization

```python
from criteria_pattern import Criteria, Filter, Operator
from criteria_pattern.converters import CriteriaToPostgresqlConverter

is_adult = Criteria(filters=[Filter(field='age', operator=Operator.GREATER_OR_EQUAL, value=18)])
email_is_gmail = Criteria(filters=[Filter(field='email', operator=Operator.ENDS_WITH, value='@gmail.com')])
email_is_yahoo = Criteria(filters=[Filter(field='email', operator=Operator.ENDS_WITH, value='@yahoo.com')])

query, parameters = CriteriaToPostgresqlConverter.convert(criteria=is_adult & (email_is_gmail | email_is_yahoo), table='user')
print(query)
print(parameters)
# >>> SELECT * FROM user WHERE (age >= %(parameter_0)s AND (email LIKE '%%' || %(parameter_1)s OR email LIKE '%%' || %(parameter_2)s));
# >>> {'parameter_0': 18, 'parameter_1': '@gmail.com', 'parameter_2': '@yahoo.com'}
```

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## 🤝 Contributing

We love community help! Before you open an issue or pull request, please read:

- [`🤝 How to Contribute`](https://github.com/adriamontoto/criteria-pattern/blob/master/.github/CONTRIBUTING.md)
- [`🧭 Code of Conduct`](https://github.com/adriamontoto/criteria-pattern/blob/master/.github/CODE_OF_CONDUCT.md)
- [`🔐 Security Policy`](https://github.com/adriamontoto/criteria-pattern/blob/master/.github/SECURITY.md)

_Thank you for helping make **🤏🏻 Criteria Pattern** package awesome! 🌟_

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## 🔑 License

This project is licensed under the terms of the [`MIT license`](https://github.com/adriamontoto/criteria-pattern/blob/master/LICENSE.md).

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