Added search params for get contract

database/contract/contract.go

@@ -0,0 +1,69 @@
+package contract
+
+import (
+	"errors"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/jinzhu/gorm"
+	"gitlab.com/pactual1/backend/models"
+	"gitlab.com/pactual1/backend/shared"
+)
+
+func GetContracts(status string, companyName string, startTime time.Time, deviceIDs []int64,limit, offset int) ([]models.Contract, int64, int, error) {
+	// Create a slice to hold the contracts
+	var contracts []models.Contract
+
+	// Initialize the query
+	db := shared.GetDb().Where("status = ?", status)
+	countDb := db
+
+	if companyName != "" {
+		db = db.Joins("left join companies on companies.id = contracts.buyer_id").Where("companies.name LIKE ?", "%"+companyName+"%")
+		countDb = countDb.Joins("left join companies on companies.id = contracts.buyer_id").Where("companies.name LIKE ?", "%"+companyName+"%")
+	}
+	
+	if !startTime.IsZero() {
+		db = db.Where("start_time >= ?", startTime)
+		countDb = countDb.Where("start_time >= ?", startTime)
+	}
+	if len(deviceIDs) > 0 {
+		db = db.Where("device_ids && ARRAY[?]::int8[]", deviceIDs)
+		countDb = countDb.Where("device_ids && ARRAY[?]::int8[]", deviceIDs)
+	}
+
+	// Count the total number of contracts
+	var total int64
+	if err := countDb.Model(&models.Contract{}).Count(&total).Error; err != nil {
+		log.Printf("GetLatestContracts Error: Database error: %v", err)
+		return contracts, total, http.StatusInternalServerError, err
+	}
+
+	// Fetch the latest contracts from the database with LIMIT and OFFSET
+	if err := db.Order("created_at desc").Limit(limit).Offset(offset).Find(&contracts).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			log.Printf("GetLatestContracts Error: No contracts found: %v", err)
+			return contracts, total, http.StatusNotFound, err
+		} else {
+			log.Printf("GetLatestContracts Error: Database error: %v", err)
+			return contracts, total, http.StatusInternalServerError, err
+		}
+	}
+	return contracts, total, http.StatusOK, nil
+}
+
+
+
+func GetContractByID(contractID uint64) (models.Contract, int ,error) {
+
+	// Fetch the contract creation date based on contractID
+	var contract models.Contract
+	if err := shared.GetDb().Where("id = ?", contractID).First(&contract).Error; err != nil {
+		log.Printf("GetDeviceData Error: Could not fetch contract: %v", err)
+		return contract, http.StatusInternalServerError, err
+	}
+	
+	return  contract ,  http.StatusOK, nil
+
+}