Metadata-Version: 2.4
Name: CyVer
Version: 2.0.1
Summary: Cypher queries Validators against a given Knowledge Graph schema, in terms of syntax, schema validity, and property access.
Home-page: https://gitlab.com/netmode/CyVer
Author: ['Ioanna Mandilara', 'Christina Maria Androna']
Author-email: Ioanna Mandilara <ioanna_mandilara@yahoo.gr>, Christina-Maria Androna <androna.xm@gmail.com>
License: Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) License
        Copyright (c) 2025 androna-xm
        
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Project-URL: Homepage, https://gitlab.com/netmode/CyVer
Project-URL: Documentation, https://gitlab.com/netmode/CyVer/-/wikis/CyVer-Documentation
Project-URL: Changelog, https://gitlab.com/netmode/CyVer/-/blob/main/CHANGELOG.md
Project-URL: Issues, https://gitlab.com/netmode/CyVer/-/issues
Project-URL: Repository, https://gitlab.com/netmode/CyVer
Classifier: Programming Language :: Python :: 3
Classifier: Operating System :: OS Independent
Requires-Python: >=3.10
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: regex>=2024.11.6
Requires-Dist: neo4j>=5.27
Requires-Dist: pandas>=2.2.3
Dynamic: author
Dynamic: home-page
Dynamic: license-file
Dynamic: requires-python

# CyVer


<div align="center">
    <img src="https://gitlab.com/netmode/CyVer/-/raw/main/logoCyVer.jpg?ref_type=heads" alt="CyVer" width="300">
</div>

<div align="center">
  <b>Syntax, Schema And Property Access Validation of Cypher queries</b>
</div>

&nbsp;

<div align="center">

[
![License](https://img.shields.io/badge/License-CC_BY_SA_4.0-blue.svg)](https://creativecommons.org/licenses/by-sa/4.0/) [![Python](https://img.shields.io/badge/Python-%3E%3D3.10-brightgreen)](https://www.python.org/) [![Documentation](https://img.shields.io/badge/Documentation-online-orange)](https://gitlab.com/netmode/CyVer/-/wikis/home) [![Cite](https://img.shields.io/badge/Cite%20as-doi-yellow)](https://ieeexplore.ieee.org/document/10990239)
</div>

**CyVer** is a Python library designed to validate Cypher queries against a given Knowledge Graph schema in Neo4j. It ensures correctness in terms of syntax, schema validity, and property access.


## Features

* **Syntax Validation**: Validates Cypher queries for correct syntax and detects conflicting labels in nodes and relationships.
* **Schema Validation**: Checks query alignment with a predefined KG schema structure.
* **Property Validation**: Ensures property accesses are correct based on the predefined KG schema structure.

### New Feature in release v2.x: 

* **Validators Metadata Reporting**: Alongside validation results, CyVer returns detailed metadata describing each detected issue in a Cypher query — including the type of error, its location, and suggestions for how to fix it.
  
## 📖 Documentation

For documentation read [Wiki](https://gitlab.com/netmode/CyVer/-/wikis/home).

## 📋 Requirements

Before installing, make sure you have the following Python packages installed, with Python version >= 3.10:

* regex>=2024.11.6
* neo4j>=5.27
* pandas>=2.2.3

## 📦 Installation

To install the latest stable version from [PyPI](https://pypi.org/project/CyVer/), run:

```sh
pip install CyVer
```

Alternatively, if you prefer to install the latest development version, you can install it directly from GitLab:

```sh
pip install git+https://gitlab.com/netmode/CyVer.git
```

Or, you can manually clone the repository and run:

```sh
git clone https://gitlab.com/netmode/CyVer.git
cd CyVer
pip install .
```

## 💻 Example Usage

### Importing the Library

```sh
from CyVer import SyntaxValidator, SchemaValidator, PropertiesValidator
```

### Connect to Neo4j Database instance

```sh
from neo4j import GraphDatabase,basic_auth

driver = GraphDatabase.driver(database_url, auth=basic_auth(database_username, database_password))
```

### Syntax Validator

```sh
syntax_validator =  SyntaxValidator(driver, check_multilabeled_nodes=False)
query = 'MATCH (g:Goal) RETURN COUNT(g) AS output'
is_valid, syntax_metadata = syntax_validator.validate(query, database_name=database_name)
print(f"Syntax Valid: {is_valid}")
print(f"Syntax Metadata: {syntax_metadata}")
```

### Schema Validator

```sh
schema_validator =  SchemaValidator(driver)
query = 'MATCH (g:Goal)-[:HAS_TARGET]->(t:Target) RETURN g, t'
# Extraction
extracted_node_labels, extracted_rel_labels, extracted_paths = schema_validator.extract(query, database_name=database_name)
print(f"Extracted Node patterns : {extracted_node_labels}")
print(f"Extracted Relationships patterns : {extracted_rel_labels}")
print(f"Extracted Path patterns : {extracted_paths}")
# Validation 
schema_score, schema_metadata = schema_validator.validate(query, database_name=database_name)
print(f"Schema Validation Score: {schema_score}")
print(f"Schema Validation Metadata: {schema_metadata}")

```

### Properties Validator

```sh
props_validator =  PropertiesValidator(driver)
query = 'MATCH (g:Goal)-[:HAS_TARGET]-(t:Target) WHERE g.code =1 RETURN t'
# Extraction
variables_properties , labels_properties = props_validator.extract(query, strict = False, database_name=database_name)
print(f"Accessed properties by variables: {variables_properties}")
print(f"Accessed properties by labels (including inferred): {labels_properties}")

# Validation 
props_score, properties_metadata = props_validator.validate(query, database_name=database_name, strict=False)
print(f"Properties Validation Score: {props_score}")
print(f"Properties Validation Metadata: {properties_metadata}")

```

## License

This project is licensed under the [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) license.

## 🤝 Contributing

Contributions are welcome! Please submit a pull request or open an issue.

## Cite

To cite this work, please use:

I. Mandilara, C. M. Androna, E. Fotopoulou, A. Zafeiropoulos and S. Papavassiliou, "Decoding the Mystery: How can LLMs Turn Text into Cypher in Complex Knowledge Graphs?," in  *IEEE Access* , doi: [10.1109/ACCESS.2025.3567759](https://ieeexplore.ieee.org/document/10990239).

## Contact

For any request for detailed information or expression of interest for participating at this initiative, you may contact:

- Ioanna Mandilara - ioannamand (at) netmode (dot) ntua (dot) gr
- Christina Maria Androna - andronaxm (at) netmode (dot) ntua (dot) gr
- Eleni Fotopoulou - efotopoulou (at) netmode (dot) ntua (dot) gr
- Anastasios Zafeiropoulos - tzafeir (at) cn (dot) ntua (dot) gr

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