CRUD lecturas de bomba

backend/src/modules/pump-reading/pumpReading.model.ts

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+import mongoose from "mongoose";
+
+const pumpReadingSchema = new mongoose.Schema({
+
+        readingNumber:{
+            type:String,
+            required:true,
+            unique:true
+        },
+
+        fuelPumpId:{
+            type:mongoose.Schema.Types.ObjectId,
+            ref:"FuelPump",
+            required:true
+        },
+
+        fuelTypeId:{
+            type:mongoose.Schema.Types.ObjectId,
+            ref:"FuelType",
+            required:true
+        },
+
+        readingDate:{
+            type:Date,
+            required:true
+        },
+
+        initialReading:{
+            type:Number,
+            required:true,
+            min:0
+        },
+
+        finalReading:{
+            type:Number,
+            required:true,
+            min:0
+        },
+
+        gallonsDispensed:{
+            type:Number,
+            default:0
+        },
+
+        systemDispensed:{
+            type:Number,
+            default:0
+        },
+
+        difference:{
+            type:Number,
+            default:0
+        },
+
+        createdBy:{
+            type:mongoose.Schema.Types.ObjectId,
+            ref:"User",
+            required:true
+        },
+
+        status:{
+            type:String,
+            enum:["ABIERTA",
+                "CUADRADA",
+                "CON_DIFERENCIA"
+            ],
+            default:"ABIERTA"
+        
+        },
+
+        comments:{
+            type:String
+        }
+},
+{
+    timestamps:true,
+    versionKey:false
+}
+
+);
+
+pumpReadingSchema.pre("save",
+    function(){
+
+        this.gallonsDispensed = this.finalReading-this.initialReading;
+    }
+);
+
+export default mongoose.model("PumpReading",pumpReadingSchema);