Form component now supports edit recprd

packages/client/src/render/screenRouter.js

@@ -1,5 +1,5 @@
 import regexparam from "regexparam"
-import { routerStore } from "../state/store"
+import { appStore } from "../state/store"
 import { getAppId } from "./getAppId"
 
 export const screenRouter = ({ screens, onScreenSelected, window }) => {
@@ -49,7 +49,7 @@ export const screenRouter = ({ screens, onScreenSelected, window }) => {
       })
     }
 
-    routerStore.update(state => {
+    appStore.update(state => {
       state["##routeParams"] = params
       return state
     })

packages/client/src/state/bbComponentApi.js

@@ -8,6 +8,7 @@ export const bbFactory = ({
   store,
   componentLibraries,
   onScreenSlotRendered,
+  getCurrentState,
 }) => {
   const apiCall = method => (url, body) => {
     return fetch(url, {
@@ -53,6 +54,8 @@ export const bbFactory = ({
       store: store,
       api,
       parent,
+      // these parameters are populated by screenRouter
+      routeParams: () => getCurrentState()["##routeParams"],
     }
   }
 }

packages/client/src/state/stateManager.js

@@ -26,8 +26,14 @@ export const createStateManager = ({
   routeTo,
 }) => {
   let handlerTypes = eventHandlers(routeTo)
-  let currentState
 
+  // creating a reference to the current state
+  // this avoids doing store.get() ... which is expensive on
+  // hot paths, according to the svelte docs.
+  // the state object reference never changes (although it's internals do)
+  // so this should work fine for us
+  let currentState
+  appStore.subscribe(s => (currentState = s))
   const getCurrentState = () => currentState
 
   const bb = bbFactory({

packages/standard-components/src/DataForm.svelte

@@ -13,14 +13,14 @@
     number: "number",
   }
 
-  let newModel = {
+  let record
-    modelId: model,
-  }
   let store = _bb.store
   let schema = {}
   let modelDef = {}
   let saved = false
   let saving = false
+  let recordId
+  let isNew = true
 
   let inputElements = {}
 
@@ -30,6 +30,8 @@
 
   $: fields = Object.keys(schema)
 
+  $: Object.values(inputElements).length && setForm(record)
+
   async function fetchModel() {
     const FETCH_MODEL_URL = `/api/models/${model}`
     const response = await _bb.api.get(FETCH_MODEL_URL)
@@ -42,7 +44,8 @@
     if (saving) return
     saving = true
     const SAVE_RECORD_URL = `/api/${model}/records`
-    const response = await _bb.api.post(SAVE_RECORD_URL, newModel)
+    const response = await _bb.api.post(SAVE_RECORD_URL, record)
+
     const json = await response.json()
 
     if (response.status === 200) {
@@ -51,7 +54,13 @@
         return state
       })
       
+      // wipe form, if new record, otherwise update
+      // model to get new _rev 
+      if (isNew) {
         resetForm()
+      } else {
+        record = json
+      }
 
       // set saved, and unset after 1 second
       // i.e. make the success notifier appear, then disappear again after time
@@ -72,29 +81,58 @@
         el.checked = false
       }
     }
-    newModel = {
+    record = {
       modelId: model
     }
   }
 
+  const setForm = rec => {
+    if (isNew || !rec) return
+    for (let fieldName in inputElements) {
+      if (typeof rec[fieldName] === "boolean") {
+        inputElements[fieldName].checked = rec[fieldName]
+      } else {
+        inputElements[fieldName].value = rec[fieldName]
+      }
+    }
+  }
+
   const handleInput = field => event => {
     let value
 
     if (event.target.type === "checkbox") {
       value = event.target.checked
-      newModel[field] = value
+      record[field] = value
       return
     }
 
     if (event.target.type === "number") {
       value = parseInt(event.target.value)
-      newModel[field] = value
+      record[field] = value
       return
     }
 
     value = event.target.value
-    newModel[field] = value
+    record[field] = value
   }
+
+  onMount(() => {
+    const routeParams = _bb.routeParams()
+    recordId = Object.keys(routeParams).length > 0 &&  (routeParams.id || routeParams[0])
+    isNew = !recordId || recordId === "new"
+
+    if (isNew) {
+      record = { modelId: model }
+    } else {
+      const GET_RECORD_URL = `/api/${model}/records/${recordId}`
+      _bb.api.get(GET_RECORD_URL)
+        .then(response => response.json())
+        .then(rec => {
+          record = rec
+          setForm(rec)
+        })
+    }    
+	});
 </script>
 
 <form class="form" on:submit|preventDefault>

packages/standard-components/src/DataFormWide.svelte

@@ -13,33 +13,39 @@
     number: "number",
   }
 
-  let newModel = {
+  let record
-    modelId: model,
-  }
   let store = _bb.store
   let schema = {}
   let modelDef = {}
   let saved = false
   let saving = false
+  let recordId
+  let isNew = true
 
   let inputElements = {}
 
   $: if (model && model.length !== 0) {
     fetchModel()
   }
+
   $: fields = Object.keys(schema)
+
+  $: Object.values(inputElements).length && setForm(record)
+
   async function fetchModel() {
     const FETCH_MODEL_URL = `/api/models/${model}`
     const response = await _bb.api.get(FETCH_MODEL_URL)
     modelDef = await response.json()
     schema = modelDef.schema
   }
+
   async function save() {
     // prevent double clicking firing multiple requests
     if (saving) return
     saving = true
     const SAVE_RECORD_URL = `/api/${model}/records`
-    const response = await _bb.api.post(SAVE_RECORD_URL, newModel)
+    const response = await _bb.api.post(SAVE_RECORD_URL, record)
+
     const json = await response.json()
 
     if (response.status === 200) {
@@ -48,7 +54,13 @@
         return state
       })
       
+      // wipe form, if new record, otherwise update
+      // model to get new _rev 
+      if (isNew) {
         resetForm()
+      } else {
+        record = json
+      }
 
       // set saved, and unset after 1 second
       // i.e. make the success notifier appear, then disappear again after time
@@ -69,26 +81,58 @@
         el.checked = false
       }
     }
-    newModel = {
+    record = {
       modelId: model
     }
   }
 
+  const setForm = rec => {
+    if (isNew || !rec) return
+    for (let fieldName in inputElements) {
+      if (typeof rec[fieldName] === "boolean") {
+        inputElements[fieldName].checked = rec[fieldName]
+      } else {
+        inputElements[fieldName].value = rec[fieldName]
+      }
+    }
+  }
+
   const handleInput = field => event => {
     let value
+
     if (event.target.type === "checkbox") {
       value = event.target.checked
-      newModel[field] = value
+      record[field] = value
       return
     }
+
     if (event.target.type === "number") {
       value = parseInt(event.target.value)
-      newModel[field] = value
+      record[field] = value
       return
     }
+
     value = event.target.value
-    newModel[field] = value
+    record[field] = value
   }
+
+  onMount(() => {
+    const routeParams = _bb.routeParams()
+    recordId = Object.keys(routeParams).length > 0 &&  (routeParams.id || routeParams[0])
+    isNew = !recordId || recordId === "new"
+
+    if (isNew) {
+      record = { modelId: model }
+    } else {
+      const GET_RECORD_URL = `/api/${model}/records/${recordId}`
+      _bb.api.get(GET_RECORD_URL)
+        .then(response => response.json())
+        .then(rec => {
+          record = rec
+          setForm(rec)
+        })
+    }    
+	});
 </script>
 
 <form class="form" on:submit|preventDefault>