I am trying to learn ionic and SQLite, I am new.
Is this (https://www.positronx.io/ionic-sqlite-database-crud-app-example-tutorial/) up to date to use it on Ionic 5.4.16? If no then what should I watch out for?
Also on this tutorial it shows how to do it with pages, but I want to do it with tabs. Can I still follow the routing tutorial on this or do I need to add the routing part to tabs-routing.module.ts instead of app-routing.module.ts? I have been trying to figure it out, but I find my self stuck.
And when I use tabs then I can just rename home and song to tab3 and tab4 if I want to and just route it there?
// app-routing.module.ts
import { NgModule } from '#angular/core';
import { PreloadAllModules, RouterModule, Routes } from '#angular/router';
const routes: Routes = [
{ path: '', redirectTo: 'home', pathMatch: 'full' },
{ path: 'home', loadChildren: () => import('./home/home.module').then( m => m.HomePageModule)},
{
path: 'song/:id',
loadChildren: () => import('./song/song.module').then( m => m.SongPageModule)
}
];
#NgModule({
imports: [
RouterModule.forRoot(routes, { preloadingStrategy: PreloadAllModules })
],
exports: [RouterModule]
})
export class AppRoutingModule { }
Related
I have walkthrough page built using ion-slides.
I had set this page to be the first page to open when the app had launched in app-routing.module.ts:
{
path: '',
redirectTo: 'walkthrough',
pathMatch: 'full'
},
However if I change the starting page to any other page the app will consistently start with the waklthourgh page:
{
path: '',
redirectTo: 'login',
pathMatch: 'full'
},
All paths are set correctly:
{
path: 'walkthrough',
loadChildren: () => import('./walkthrough/walkthrough.module').then(m => m.WalkthroughPageModule)
},
{
path: 'login',
loadChildren: () => import('./auth/login/login.module').then( m => m.LoginPageModule)
},
Any input appreciated.
EDIT: adding login routing.module.ts:
import { NgModule } from '#angular/core';
import { Routes, RouterModule } from '#angular/router';
import { LoginPage } from './login.page';
const routes: Routes = [
{
path: '',
component: LoginPage
}
];
#NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule],
})
export class LoginPageRoutingModule {}
guys , I am creating and ionic app which has details page with page id, I am trying to configure router, its not redirecting its always on main page , my code is below please check ?
parent page route
import { NgModule } from '#angular/core';
import { Routes, RouterModule } from '#angular/router';
import { RecepiesPage } from './recepies.page';
const routes: Routes = [
{
path: '',
component: RecepiesPage
},
{
path: 'recipedatail',
loadChildren: () => import('./recipedatail/recipedatail.module').then( m => m.RecipedatailPageModule)
},
];
#NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule],
})
export class RecepiesPageRoutingModule {}
details page routing
import { NgModule } from '#angular/core';
import { Routes, RouterModule } from '#angular/router';
import { RecipedatailPage } from './recipedatail.page';
const routes: Routes = [
{
path: '',
component: RecipedatailPage
},
{
path: ':recipeId',
loadChildren: () => import('./recipedatail.module').then( m => m.RecipedatailPageModule)
},
];
#NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule],
})
export class RecipedatailPageRoutingModule {}
Check the angular documentation for correct router implementation
I have an app that is working great, but I want to move it behind a login page. The various modules are lazy-loaded and have been working great. However, when I change the app to always go to the login page first (where I will check login status and redirect to the app if logged in), I get an error about routes.
app-routing.module.ts
import { NgModule } from '#angular/core';
import { PreloadAllModules, RouterModule, Routes } from '#angular/router';
const routes: Routes = [
{ path: '', loadChildren: './login/login.module#LoginPageModule' }
// this next line was how the app routed before I tried adding the login page
// { path: '', loadChildren: './tabs/tabs.module#TabsPageModule' }
];
#NgModule({
imports: [
RouterModule.forRoot(routes, { preloadingStrategy: PreloadAllModules })
],
exports: [RouterModule]
})
export class AppRoutingModule {}
login.router.module.ts
import { NgModule } from '#angular/core';
import { RouterModule, Routes } from '#angular/router';
import { LoginPage } from './login.page';
const routes: Routes = [
{ path: '', component: LoginPage },
];
#NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule],
})
export class LoginRoutingModule { }
login.page.ts
import { ChangeDetectionStrategy, Component } from '#angular/core';
import { Router } from '#angular/router';
import { Store } from '#ngrx/store';
import { AppState } from '../_store/store/app.store';
import { filter } from 'rxjs/operators';
#Component({
selector: 'app-login',
templateUrl: 'login.page.html',
styleUrls: ['login.page.scss'],
changeDetection: ChangeDetectionStrategy.OnPush,
})
export class LoginPage {
constructor(private router: Router, private store: Store<AppState>) {
this.userSubscription = this.store.select(state => state.users.user).pipe(
filter(user => !!user)
).subscribe(user => {
if (user) {
// THIS IS WHERE THE ERROR HAPPENS
this.router.navigate(['/tabs']);
}
});
}
}
this.router.navigate(['/tabs']); is where the error happens:
ERROR Error: Uncaught (in promise): Error: Cannot match any routes.
URL Segment: 'tabs/behaviors' Error: Cannot match any routes. URL
Segment: 'tabs/behaviors'
I'm sure I'm missing something really obvious here. First attempt at lazy loading all the modules. I'm pretty certain I need to reference the tabs module in the login.page file somehow, or in the login.router.module. Any help would be greatly appreciated. The state check for user status works great, I've verified that all of that is working, it is just where it attempts to navigate if user is found.
Try to change to
const routes: Routes = [
{ path: '', redirectTo: 'login', pathMatch: 'full' },
{ path: 'login', loadChildren: './login/login.module#LoginPageModule' }
{ path: 'tabs', loadChildren: './tabs/tabs.module#TabsPageModule' }
];
With this code this.router.navigate(['/tabs']); you are routing to tabs, but you don't have it declare it. This is for the app.routing.ts file. Don't understand why you have the login.router.ts file.
So after following a suggestion above, and that giving me the same error, and finding no help in the docs for either angular or ionic, I went on a multi-hour change every combination of routings I could and finally something worked.
These are the routes in the app-routing.module.ts
{ path: 'login', loadChildren: './login/login.module#LoginPageModule' },
{ path: 'tabs', loadChildren: './tabs/tabs.module#TabsPageModule' },
{ path: '', redirectTo: 'login', pathMatch: 'full' },
This is the tabs.router.module.ts before the change that made it work:
{ path: 'tabs', component: TabsPage, children: [ .... ] },
{ path: '', redirectTo: 'tabs/behaviors', pathMatch: 'full' }
This is it now:
{ path: '', component: TabsPage, children: [ ... ] },
That's it. Finally figured it out when accidentally typing in the browser .com:8100/tabs/tabs/behaviors worked. Removing the path: 'tabs' in the tabs routing module fixed it. /tabs goes to the tabs routing, and then /behaviors is the child. My code had added a 2nd layer of /tabs in between the 1st and the /behavior.
my routes used to work fine when they were all together, the notfound route
{ path: '**', component: PageNotFoundComponent}
was at the last place to capture any other not defined paths.
After I moved the recipe routes to its own module these are never called. Instead, the pagenotfound is called.
Everything works fine if I remove the PageNotFoundComponent route from the root routes. Any ideas regarding whats going on here?
This is the root app routing module:
import { Routes, RouterModule } from '#angular/router';
import { NgModule, OnInit } from '#angular/core';
import { ShoppingListComponent } from './shopping-list/shopping-list.component';
import { PageNotFoundComponent } from './errors/page-not-found/page-not-found.component';
import { AuthComponent } from './auth/auth.component';
const appRoutes: Routes = [
{ path: '', redirectTo: 'recipes', pathMatch: 'full' },
{ path: 'shopping-list', component: ShoppingListComponent },
{ path: 'auth', component: AuthComponent },
{ path: '**', component: PageNotFoundComponent}
];
#NgModule({
imports: [RouterModule.forRoot(appRoutes)],
exports: [RouterModule]
})
export class AppRoutingModule {
OnInit() {
console.log(appRoutes);
}
}
This is the child recipe routing module:
import { NgModule } from '#angular/core';
import { Routes, RouterModule } from '#angular/router';
import { RecipesComponent } from './recipes.component';
import { AuthGuard } from '../auth/auth.guard';
import { RecipeStartComponent } from './recipe-start/recipe-start.component';
import { RecipeEditComponent } from './recipe-edit/recipe-edit.component';
import { RecipeDetailComponent } from './recipe-detail/recipe-detail.component';
import { RecipesResolverService } from './recipes-resolver.service';
const routes: Routes = [
{
path: 'recipes', component: RecipesComponent, canActivate: [AuthGuard] , children: [
{ path: '', component: RecipeStartComponent },
{ path: 'new', component: RecipeEditComponent },
{
path: ':id',
component: RecipeDetailComponent,
resolve: [RecipesResolverService]
},
{
path: ':id/edit',
component: RecipeEditComponent,
resolve: [RecipesResolverService]
},
]
}
];
#NgModule({
declarations: [
],
imports: [RouterModule.forChild(routes)],
exports: [RouterModule]
})
export class RecipesRoutingModule {
}
Thanks for taking the time to get this far, any idea would be appreciated.
The problem was that the wildcard route ('**') always should be at the end of your routes list because of the way it works.
It watches all the routes before it, and checks if any given URL, that the user is searching on matches those.
Since you've outsourced your recipes paths, and probably imported them into app.module, those paths get concatenated after the original path list that you have in your app-routing.module.
Therefore your paths in the recipe routing module end up being AFTER the wildcard route ('**'), so they get ignored by it. That's why searching on any URL listed in the recipe routing module will reroute the user to the wild card path, to your PageNotFoundComponent.
Great solution tho.
I solved the problem lazy loading all the routes and then adding the PageNotFound route '**' at the end, hope this helps anyone that faced the same problem:
import { Routes, RouterModule } from '#angular/router';
import { NgModule } from '#angular/core';
import { PageNotFoundComponent } from './errors/page-not-found/page-not-found.component';
// If new and :id children were inverted that would make angular take new as id
// ant that would break the app, the order of the routes is very important
// that's why the 404 PageNotFoundComponent goes the last one
const appRoutes: Routes = [
{ path: '', redirectTo: 'recipes', pathMatch: 'full' },
{ path: 'recipes', loadChildren: () => import('./recipes/recipes.module').then(m => m.RecipesModule) },
{ path: 'shopping-list', loadChildren: () => import('./shopping-list/shopping-list.module').then( m => m.ShoppingListModule) },
{ path: 'auth', loadChildren: () => import('./auth/auth.module').then( m => m.AuthModule) },
{ path: '**', component: PageNotFoundComponent }
];
#NgModule({
imports: [RouterModule.forRoot(appRoutes)],
exports: [RouterModule]
})
export class AppRoutingModule {
}
I'm a currently working on a sign up forms, which has multiple steps and various conditional forms depending on the account type. The module has almost 30 components (a mix of children and parent components) and all of these are imported into the module file. This is making the entire Angular 2 site run really slow, especially after navigating to the sign up forms and then to another route.
Is it possible that there are too many components/service/providers in a module that it's impacting the performance of the site negatively? Is it recommended to break down the multi-step sign up application forms to multiple modules?
import { CommonModule } from '#angular/common';
import { RouterModule } from '#angular/router';
import { NgModule } from '#angular/core';
import { ReactiveFormsModule } from '#angular/forms';
... all the other imports of components/service for this module
export const routes = [{
path: '',
component: parentComponent,
canActivate: [AuthGuard],
resolve: {
someData: someDataResolver
},
children: [
{ path: '', redirectTo: '0', pathMatch: 'full' },
{ path: '0',
component: someComponent1,
resolve: {
someData1: someData1Resolver
}
},
... a bunch more children routes/components
{ path: '20',
component: someComponent20,
resolve: {
someData20: someData1Resolver
}
}
]
}]
#NgModule({
declarations: [ ... ],
entryComponents: [ ... ],
imports: [ ... ],
providers: [ ... ],
})
export default class SampleModule {
static routes = routes
}
Components number in a module matters only on first load time(or page refresh), then they are loaded in memory. Look for issue in other place