partial repository layer added

pkg/repository/repository.go

@@ -0,0 +1,59 @@
+package repository
+
+import (
+	"go.uber.org/dig"
+	"wallet-api/pkg/model"
+	"wallet-api/pkg/utl/common"
+
+	"github.com/go-pg/pg/v10"
+)
+
+/*
+InitializeRepositories
+
+Initializes Dependency Injection modules for repositories
+
+	Args:
+		*dig.Container: Dig Container
+*/
+func InitializeRepositories(c *dig.Container) {
+	c.Provide(NewApiRepository)
+	c.Provide(NewSubscriptionRepository)
+	c.Provide(NewSubscriptionTypeRepository)
+	c.Provide(NewTransactionRepository)
+	c.Provide(NewTransactionStatusRepository)
+	c.Provide(NewTransactionTypeRepository)
+	c.Provide(NewUserRepository)
+	c.Provide(NewWalletRepository)
+}
+
+/*
+FilteredResponse
+
+Adds filters to query and executes it.
+
+	   	Args:
+	   		*pg.Query: postgres query
+			interface{}: model to be mapped from query execution.
+			*model.FilteredResponse: filter options.
+*/
+func FilteredResponse(qry *pg.Query, mdl interface{}, filtered *model.FilteredResponse) error {
+	if filtered.Page == 0 {
+		filtered.Page = 1
+	}
+	if filtered.Rpp == 0 {
+		filtered.Rpp = 20
+	}
+	if filtered.SortBy == "" {
+		filtered.SortBy = "date_created DESC"
+	}
+	qry = qry.Limit(filtered.Rpp).Offset((filtered.Page - 1) * filtered.Rpp).Order(filtered.SortBy)
+	common.GenerateEmbed(qry, filtered.Embed)
+	count, err := qry.SelectAndCount()
+	common.CheckError(err)
+
+	filtered.TotalRecords = count
+	filtered.Items = mdl
+
+	return err
+}