add entities and db migrations

src/main/kotlin/com/restapi/domain/models.kt

@@ -7,11 +7,12 @@ import com.fasterxml.jackson.databind.annotation.JsonDeserialize
 import io.ebean.Model
 import io.ebean.annotation.*
 import io.ebean.annotation.Index
+import java.time.LocalDate
 import java.time.LocalDateTime
 import javax.persistence.*
 
 data class Comments(val text: String = "", val by: String = "", val at: LocalDateTime = LocalDateTime.now())
-
+data class POProducts(val productId: String = "", val unitPrice :Double = 0.0, val quantity: Double = 0.0, val description :String = "")
 enum class ApprovalStatus {
     PENDING, APPROVED, REJECTED
 }
@@ -214,6 +215,8 @@ open class DataModel : BaseTenantModel() {
 
 }
 
+
+
 @Entity
 @Index(unique = true, name = "unique_session_id", columnNames = ["session_id"])
 open class AnonSession : BaseTenantModel() {
@@ -238,3 +241,69 @@ class SafeStringDeserializer : JsonDeserializer<String>() {
     }
 
 }
+
+data class ContactPerson(val name: String, val email: String, val mobile: String)
+@Entity
+open class Vendor :BaseTenantModel() {
+    var name :String = ""
+    var msme :String = ""
+    var gstNumber :String = ""
+    var address :String = ""
+    var rating :Double = 0.0
+    @DbJsonB
+    var contacts :List<ContactPerson> = mutableListOf()
+}
+@Entity
+open class PurchaseOrder :BaseTenantModel() {
+    @DbJsonB
+    var products :MutableList<POProducts> = mutableListOf()
+    @ManyToOne
+    var vendor :Vendor? = null
+    var referenceQuotation :String = ""
+    var totalAmount :Int = 0
+    var poNum: String = ""
+    var poDate: LocalDate? = null
+    var validTill: LocalDate? = null
+    @DbArray
+    var tnc: List<String> = arrayListOf()
+    @DbArray
+    var documents: MutableList<Long> = arrayListOf()
+}
+
+enum class UOM {
+    NOS, LTR, MTR
+}
+@Entity
+open class Product :BaseTenantModel() {
+    var name :String = ""
+    var description :String = ""
+    var hsnCode :String = ""
+    @Enumerated(EnumType.STRING)
+    var uom: UOM? = null
+}
+
+@Entity
+open class Quotation :BaseTenantModel() {
+    @DbJsonB
+    var products :MutableList<POProducts> = mutableListOf()
+    @ManyToOne
+    var vendor :Vendor? = null
+    var totalAmount :Int = 0
+
+    var quoteNum: String = ""
+    var quoteDate: LocalDate? = null
+    var validTill: LocalDate? = null
+    @DbArray
+    var tnc: List<String> = arrayListOf()
+
+    @DbArray
+    var documents: MutableList<Long> = arrayListOf()
+}
+
+@Entity
+open class Document :BaseTenantModel() {
+    var name :String = ""
+    var typeOfDoc :String = ""
+    var description :String = ""
+    var url :String = ""
+}