SQLDelight 1.x Quick Start Guide

app/build.gradle

@@ -4,6 +4,8 @@ apply plugin: 'kotlin-android'
 
 apply plugin: 'kotlin-android-extensions'
 
+apply plugin: "com.squareup.sqldelight"
+
 android {
     compileSdkVersion 28
     defaultConfig {
@@ -21,7 +23,9 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.0.2'
     implementation 'androidx.core:core-ktx:1.0.2'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation "com.squareup.sqldelight:android-driver:1.2.0"
     testImplementation 'junit:junit:4.12'
+    testImplementation "com.squareup.sqldelight:sqlite-driver:1.2.0"
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }

app/src/main/java/com/handstandsam/sqldelightquickstart/MainActivity.kt

@@ -1,12 +1,38 @@
 package com.handstandsam.sqldelightquickstart
 
 import android.os.Bundle
+import android.util.Log
 import androidx.appcompat.app.AppCompatActivity
+import com.squareup.sqldelight.android.AndroidSqliteDriver
 
 class MainActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+
+        // Don't ever put db code in your activity, but this is a quick start guide
+        val androidSqlDriver = AndroidSqliteDriver(
+            schema = Database.Schema,
+            context = applicationContext,
+            name = "items.db"
+        )
+
+        val queries = Database(androidSqlDriver).itemInCartEntityQueries
+
+        val itemsBefore: List<ItemInCart> = queries.selectAll().executeAsList()
+        Log.d("ItemDatabase", "Items Before: $itemsBefore")
+
+        for (i in 1..3) {
+            queries.insertOrReplace(
+                label = "Item $i",
+                image = "https://localhost/item$i.png",
+                quantity = i.toLong(),
+                link = null
+            )
+        }
+
+        val itemsAfter: List<ItemInCart> = queries.selectAll().executeAsList()
+        Log.d("ItemDatabase", "Items After: $itemsAfter")
     }
 }

app/src/main/sqldelight/com/handstandsam/sqldelightquickstart/ItemInCartEntity.sq

@@ -0,0 +1,33 @@
+CREATE TABLE itemInCart (
+    label TEXT NOT NULL UNIQUE PRIMARY KEY,
+    image TEXT NOT NULL,
+    quantity INTEGER NOT NULL DEFAULT 0,
+    link TEXT
+);
+
+selectAll:
+SELECT *
+FROM itemInCart
+ORDER BY label;
+
+insertOrReplace:
+INSERT OR REPLACE INTO itemInCart(
+  label,
+  image,
+  quantity,
+  link
+)
+VALUES (?, ?, ?, ?);
+
+selectByLabel:
+SELECT *
+FROM itemInCart
+WHERE label = ?;
+
+empty:
+DELETE FROM itemInCart;
+
+deleteByLabel:
+DELETE
+FROM itemInCart
+WHERE label = ?;

app/src/test/java/com/handstandsam/sqldelightquickstart/ItemDatabaseTest.kt

@@ -0,0 +1,34 @@
+package com.handstandsam.sqldelightquickstart
+
+import com.squareup.sqldelight.sqlite.driver.JdbcSqliteDriver
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class ItemDatabaseTest {
+
+    private val inMemorySqlDriver = JdbcSqliteDriver(JdbcSqliteDriver.IN_MEMORY).apply {
+        Database.Schema.create(this)
+    }
+
+    private val queries = Database(inMemorySqlDriver).itemInCartEntityQueries
+
+    @Test
+    fun smokeTest() {
+        val emptyItems: List<ItemInCart> = queries.selectAll().executeAsList()
+        assertEquals(emptyItems.size, 0)
+
+        queries.insertOrReplace(
+            label = "Pineapple",
+            image = "https://localhost/pineapple.png",
+            quantity = 5,
+            link = null
+        )
+
+        val items: List<ItemInCart> = queries.selectAll().executeAsList()
+        assertEquals(items.size, 1)
+
+        val pineappleItem = queries.selectByLabel("Pineapple").executeAsOneOrNull()
+        assertEquals(pineappleItem?.image, "https://localhost/pineapple.png")
+        assertEquals(pineappleItem?.quantity?.toInt(), 5)
+    }
+}

build.gradle

@@ -9,6 +9,7 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.5.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "com.squareup.sqldelight:gradle-plugin:1.2.0"
     }
 }