removed incomplete features from main

services/dbconnector/connectionManager.js

@@ -2,9 +2,7 @@
 
 require('dotenv').config();
 const sql = require('mssql');
-const oracledb = require('oracledb');
 const mysql = require('mysql2/promise');
-const { Client } = require('pg');
 
 /**
  * Gets a connection based on the configured database type.
@@ -18,14 +16,8 @@ async function getConnection() {
     switch (dbType) {
         case 'MSSQL':
             return await sql.connect(config);
-        case 'ORACLE':
-            return await oracledb.getConnection(config);
         case 'MARIADB':
             return await mysql.createConnection(config);
-        case 'POSTGRES':
-            const client = new Client(config);
-            await client.connect();
-            return client;
         default:
             throw new Error('Unsupported database type');
     }
@@ -50,12 +42,6 @@ function getDBConfig(dbType) {
                     trustServerCertificate: true
                 }
             };
-        case 'ORACLE':
-            return {
-                user: process.env.DB_USER,
-                password: process.env.DB_PASSWORD,
-                connectString: process.env.ORACLE_CONNECTION_STRING
-            };
         case 'MARIADB':
             return {
                 host: process.env.DB_SERVER,
@@ -65,14 +51,6 @@ function getDBConfig(dbType) {
                 database: process.env.DB_DATABASE,
                 namedPlaceholders: true
             };
-        case 'POSTGRES':
-            return {
-                host: process.env.DB_SERVER,
-                port: parseInt(process.env.DB_PORT, 10) || 5432,
-                user: process.env.DB_USER,
-                password: process.env.DB_PASSWORD,
-                database: process.env.DB_DATABASE
-            };
         default:
             throw new Error('Unsupported database type');
     }

services/dbconnector/paramLibrary.js

@@ -28,15 +28,11 @@ async function formatQueryParams(params) {
         case 'MSSQL':
             formattedParams = formatMSSQLParams(params, paramsConfig.mssql);
             break;
-        case 'ORACLE':
+
-            formattedParams = formatOracleParams(params, paramsConfig.oracle);
-            break;
         case 'MARIADB':
             formattedParams = formatMariaDBParams(params, paramsConfig.mariaDB);
             break;
-        case 'POSTGRES':
+
-            formattedParams = formatPostgresParams(params, paramsConfig.postgres);
-            break;
         default:
             throw new Error('Unsupported database type');
     }
@@ -91,51 +87,6 @@ function formatMSSQLParams(params, config) {
     return formattedParams;
 }
 
-/**
- * Formats query parameters for Oracle.
- *
- * @param {Object} params - An object containing the parameters to format.
- * @param {Object} config - Database-specific configuration from JSON.
- * @returns {Object} Formatted parameters.
- */
-function formatOracleParams(params, config) {
-    const formattedParams = {};
-    for (const key in params) {
-        if (!config[key]) {
-            console.warn(`Parameter '${key}' not defined in the configuration.`);
-            continue;
-        }
-
-        const paramConfig = config[key];
-        let type;
-
-        switch (paramConfig.type.toLowerCase()) {
-            case 'string':
-                type = oracledb.STRING;
-                break;
-            case 'varchar2':
-                if (!paramConfig.maxLength) {
-                    throw new Error(`Parameter '${key}' is missing maxLength in configuration.`);
-                }
-                type = oracledb.VARCHAR2(paramConfig.maxLength);
-                break;
-            case 'clob':
-                type = oracledb.CLOB;
-                break;
-            case 'number':
-                type = oracledb.NUMBER;
-                break;
-            case 'boolean':
-                type = oracledb.BOOLEAN;
-                break;
-            default:
-                throw new Error(`Unsupported parameter type: ${paramConfig.type} for parameter '${key}'`);
-        }
-
-        formattedParams[key] = { type, value: params[key] };
-    }
-    return formattedParams;
-}
 
 /**
  * Formats query parameters for MariaDB.
@@ -186,51 +137,5 @@ function formatMariaDBParams(params, config) {
     return formattedParams;
 }
 
-/**
- * Formats query parameters for PostgreSQL.
- *
- * @param {Object} params - An object containing the parameters to format.
- * @param {Object} config - Database-specific configuration from JSON.
- * @returns {Object} Formatted parameters.
- */
-function formatPostgresParams(params, config) {
-    const formattedParams = {};
-    for (const key in params) {
-        if (!config[key]) {
-            console.warn(`Parameter '${key}' not defined in the configuration.`);
-            continue;
-        }
-
-        const paramConfig = config[key];
-        let type;
-
-        switch (paramConfig.type.toLowerCase()) {
-            case 'uuid':
-                type = 'uuid';
-                break;
-            case 'varchar':
-                if (!paramConfig.length) {
-                    throw new Error(`Parameter '${key}' is missing length in configuration.`);
-                }
-                type = { type: 'VARCHAR', length: paramConfig.length };
-                break;
-            case 'text':
-                type = 'text';
-                break;
-            case 'int':
-                type = 'int';
-                break;
-            case 'boolean':
-                type = 'boolean';
-                break;
-            default:
-                throw new Error(`Unsupported parameter type: ${paramConfig.type} for parameter '${key}'`);
-        }
-
-        formattedParams[key] = { type, value: params[key] };
-    }
-    return formattedParams;
-}
-
 module.exports = { formatQueryParams };
 

services/dbconnector/paramsConfig.json

@@ -24,28 +24,6 @@
         "Quantity": { "type": "int" },
         "RequestPayload": { "type": "text" }
     },
-    "oracle": {
-        "ID": { "type": "string" },
-        "Name": { "type": "varchar2", "maxLength": 255 },
-        "Description": { "type": "varchar2", "maxLength": 255 },
-        "Text": { "type": "varchar2", "maxLength": 255 },
-        "Building": { "type": "varchar2", "maxLength": 255 },
-        "Owner": { "type": "varchar2", "maxLength": 255 },
-        "Role": { "type": "varchar2", "maxLength": 255 },
-        "Location": { "type": "varchar2", "maxLength": 255 },
-        "Route": { "type": "varchar2", "maxLength": 255 },
-        "Email": { "type": "varchar2", "maxLength": 255 },
-        "DisplayName": { "type": "varchar2", "maxLength": 255 },
-        "Team": { "type": "varchar2", "maxLength": 255 },
-        "Username": { "type": "varchar2", "maxLength": 50 },
-        "AuthenticatedUsername": { "type": "varchar2", "maxLength": 50 },
-        "UITheme": { "type": "varchar2", "maxLength": 50 },
-        "Bio": { "type": "clob" },
-        "PasswordHash": { "type": "clob" },
-        "Image": { "type": "clob" },
-        "AvatarURL": { "type": "clob" },
-        "SQL_USER": { "type": "boolean" }
-    },
     "mariaDB": {
         "ID": { "type": "uuid" },
         "Name": { "type": "string" },
@@ -67,27 +45,5 @@
         "Image": { "type": "text" },
         "AvatarURL": { "type": "text" },
         "SQL_USER": { "type": "boolean" }
-    },
-    "postgres": {
-        "ID": { "type": "uuid" },
-        "Name": { "type": "varchar", "length": 255 },
-        "Description": { "type": "varchar", "length": 255 },
-        "Text": { "type": "varchar", "length": 255 },
-        "Building": { "type": "varchar", "length": 255 },
-        "Owner": { "type": "varchar", "length": 255 },
-        "Role": { "type": "varchar", "length": 255 },
-        "Location": { "type": "varchar", "length": 255 },
-        "Route": { "type": "varchar", "length": 255 },
-        "Email": { "type": "varchar", "length": 255 },
-        "DisplayName": { "type": "varchar", "length": 255 },
-        "Team": { "type": "varchar", "length": 255 },
-        "Username": { "type": "varchar", "length": 50 },
-        "AuthenticatedUsername": { "type": "varchar", "length": 50 },
-        "UITheme": { "type": "varchar", "length": 50 },
-        "Bio": { "type": "text" },
-        "PasswordHash": { "type": "text" },
-        "Image": { "type": "text" },
-        "AvatarURL": { "type": "text" },
-        "SQL_USER": { "type": "boolean" }
     }
 }

services/dbconnector/queryConstructor.js

@@ -117,14 +117,9 @@ function generateCreateQuery(dbType, table, params) {
                 .map(key => `@${key}`)
                 .join(', ');
             break;
-        case 'POSTGRES':
-            placeholders = Object.keys(params).map(() => '?').join(', '); // Use ? for PostgreSQL
-            break;
         case 'MARIADB':
             placeholders = Object.keys(params).map(() => `?`).join(', '); // Use ? for MariaDB
             break;
-        case 'ORACLE':
-            throw new Error('CREATE operation is not supported for ORACLE in this implementation.');
         default:
             throw new Error('Unsupported database type for this operation!');     
     }
@@ -161,22 +156,6 @@ function generateReadQuery(dbType, table, params) {
                         condition = `${key} = @${key}`;
                     }
                     break;
-                case 'ORACLE':
-                    if (params.partialMatch) {
-                        condition = `${key} LIKE '%' || :${key} || '%'`;
-                        params[key] = `%${params[key]}%`; // Add % wildcard in params
-                    } else {
-                        condition = `${key} = :${key}`;
-                    }
-                    break;
-                case 'POSTGRES':
-                    if (params.partialMatch) {
-                        condition = `${key} LIKE $1`;
-                        params[key] = `%${params[key]}%`; // Add % wildcard in params
-                    } else {
-                        condition = `${key} = $1`;
-                    }
-                    break;
                 case 'MARIADB':
                     if (params.partialMatch) {
                         condition = `${key} LIKE ?`;
@@ -231,9 +210,6 @@ async function generateUpdateQuery(dbType, table, params) {
         case 'MSSQL':
             whereClause = `WHERE ID = @ID`;
             break;
-        case 'POSTGRES':
-            whereClause = `WHERE ID = $2`;
-            break;
         case 'MARIADB':
             whereClause = `WHERE ID = ?`;
             break;
@@ -258,12 +234,8 @@ async function generateDeleteQuery(dbType, table, params) {
     switch (dbType.toUpperCase()) {
         case 'MSSQL':
             return `DELETE FROM ${table} WHERE ID = @ID;`;
-        case 'POSTGRES':
-            return `DELETE FROM ${table} WHERE ID = $1;`; // Use $1 for PostgreSQL
         case 'MARIADB':
             return `DELETE FROM ${table} WHERE ID = ?;`;
-        case 'ORACLE':
-            throw new Error('DELETE operation is not supported for ORACLE in this implementation.');
         default:
             throw new Error('Unsupported database type!');
     }
@@ -279,57 +251,10 @@ async function generateTestQuery(dbType) {
     switch (dbType.toUpperCase()) {
         case 'MSSQL':
             return `SELECT @@SPID;`;
-        case 'POSTGRES':
-            return `SELECT pg_backend_pid();`; // Use $1 for PostgreSQL
         case 'MARIADB':
             return `SELECT CONNECTION_ID();`;
-        case 'ORACLE':
-            return `SELECT SYS_CONTEXT('USERENV', 'SESSIONID') FROM dual;`;
         default:
             throw new Error('Unsupported database type!');
     }
 }
-/*
-*
-* I intend to implement "compare" functionality but haven't yet decided how to do so. This is some spitballed code that I came up with for this exercise, and I hope to complete work on it in the future.
-/**
- * Generates a COMPARE SQL query string based on database type, table, and parameters.
- *
- * @param {string} dbType - Type of database (e.g., 'MSSQL', 'ORACLE').
- * @param {Object} params - Parameters for the SQL query.
- * @returns {string} The constructed COMPARE SQL query string.
- *
-function generateCompareQuery(dbType, table, params) {
-    const { compareTable, idField } = params;
-    
-    switch (dbType.toUpperCase()) {
-        case 'MSSQL':
-            return `
-                SELECT a.*
-                FROM ${table} a
-                JOIN ${compareTable} b ON a.${idField} = b.${idField}
-            `;
-        case 'ORACLE':
-            return `
-                SELECT a.*
-                FROM ${table} a
-                JOIN ${compareTable} b ON a.${idField} = b.${idField}
-            `;
-        case 'POSTGRES':
-            return `
-                SELECT a.*
-                FROM ${table} a
-                JOIN ${compareTable} b ON a.${idField} = b.${idField}
-            `;
-        case 'MARIADB':
-            return `
-                SELECT a.*
-                FROM ${table} a
-                JOIN ${compareTable} b ON a.${idField} = b.${idField}
-            `;
-        default:
-            throw new Error('Unsupported database type');
-    }
-}*/
-
 module.exports = { generateQuery };

services/dbconnector/queryExecutor.js

@@ -32,21 +32,11 @@ async function executeQuery(table, operation, params) {
                 console.log('Formatted parameters for MSSQL:', formattedParams); // Log the formatted parameters
                 result = await executeMSSQLQuery(connection, query, formattedParams);
                 break;
-            case 'ORACLE':
-                console.log('Executing Oracle query:', query); // Debugging log
-                console.log('Formatted parameters for Oracle:', formattedParams); // Log the formatted parameters
-                result = await executeOracleQuery(connection, query, formattedParams);
-                break;
             case 'MARIADB':
                 console.log('Executing MariaDB query:', query); // Debugging log
                 console.log('Formatted parameters for MariaDB:', formattedParams); // Log the formatted parameters
                 result = await executeMariaDBQuery(connection, query, formattedParams);
                 break;
-            case 'POSTGRES':
-                console.log('Executing PostgreSQL query:', query); // Debugging log
-                console.log('Formatted parameters for PostgreSQL:', formattedParams); // Log the formatted parameters
-                result = await executePostgresQuery(connection, query, formattedParams);
-                break;
             default:
                 throw new Error('Unsupported database type');
         }
@@ -91,30 +81,6 @@ async function executeMSSQLQuery(connection, query, params) {
     }
 }
 
-async function executeOracleQuery(connection, query, params) {
-    const binds = {};
-
-    // Bind each parameter with its name and value
-    Object.keys(params).forEach((key, index) => {
-        binds[`param${index + 1}`] = { type: params[key].type, val: params[key].value };
-    });
-
-    const options = {
-        outFormat: require('oracledb').OUT_FORMAT_OBJECT
-    };
-
-    try {
-        console.log('Executing Oracle query:', query); // Debugging log
-        console.log('Binding parameters for Oracle:', binds); // Debugging log
-        const result = await connection.execute(query, binds, options);
-        return { recordset: result.rows, affectedRows: result.rowsAffected };
-
-    } catch (error) {
-        console.error('Error executing Oracle query:', error.message);
-        throw error;
-    }
-}
-
 async function executeMariaDBQuery(connection, query, params) {
     try {
         // Extract parameter values in order
@@ -130,20 +96,4 @@ async function executeMariaDBQuery(connection, query, params) {
     }
 }
 
-async function executePostgresQuery(connection, query, params) {
-    try {
-        // Extract parameter values in order
-        const paramValues = Object.keys(params).map(key => params[key].value);
-
-        console.log('Executing PostgreSQL query:', query); // Debugging log
-        console.log('Binding parameters for PostgreSQL:', paramValues); // Debugging log
-
-        const result = await connection.query(query, paramValues);
-        return { recordset: result.rows };
-    } catch (error) {
-        console.error('Error executing PostgreSQL query:', error.message);
-        throw error;
-    }
-}
-
 module.exports = { executeQuery };