ddl-manager/dist/cache/processor/buildConditionsMatrix.js

store postgres procedures and triggers in files

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.buildConditionsMatrix = void 0;
function buildConditionsMatrix(cache) {
    // top level is "or"
    // second level is "and"
    let conditionsMatrix = [];
    if (cache.select.where) {
        const orConditions = cache.select.where.splitBy("or");
        for (const orCondition of orConditions) {
            const andConditions = orCondition.splitBy("and");
            conditionsMatrix.push(andConditions);
        }
    }
    const onConditionsByTable = {};
    for (const rootFromItem of cache.select.from) {
        for (const join of rootFromItem.joins) {
            const tableName = join.getTableId().toString();
            const joinOrConditions = join.on.splitBy("or");
            const tableConditionsMatrix = onConditionsByTable[tableName] || [];
            for (const joinCondition of joinOrConditions) {
                const joinAndConditions = joinCondition.splitBy("and");
                tableConditionsMatrix.push(joinAndConditions);
            }
            onConditionsByTable[tableName] = tableConditionsMatrix;
        }
    }
    for (const tableName in onConditionsByTable) {
        const originalTableMatrix = conditionsMatrix.map(line => line.slice());
        conditionsMatrix = [];
        const tableConditionsMatrix = onConditionsByTable[tableName];
        for (const andConditions of tableConditionsMatrix) {
            const newMatrix = originalTableMatrix.map(conditions => [...conditions, ...andConditions]);
            conditionsMatrix.push(...newMatrix);
        }
    }
    // remove: AND true
    const outputMatrix = conditionsMatrix
        .map(andConditions => andConditions.filter(condition => condition.toString() !== "true"))
        .filter(andConditions => andConditions.length > 0);
    return outputMatrix;
}
exports.buildConditionsMatrix = buildConditionsMatrix;
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